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Fluke DTX-1800, Technical Reference Handbook

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Diagnosing Fiber Cabling Faults

Diagnosing OTDR Test Failures

10-5

10

Diagnosing OTDR Test Failures

Table 10-3 describes some typical causes of fiber test 
failures. 

Table 10-3. Diagnosing OTDR Test Failures

-continued-

Overall Loss fails

•

There is one or more dirty or damaged connections in the cabling. Check the OTDR trace or event table for 

 

high-loss reflective events.

•

The wrong fiber type is selected on the OTDR tab in Setup. 

•

A patch cord, launch fiber, or fiber segment has the wrong core size, backscatter coefficient, or mode field diameter. If 
the patch cords and launch fiber are the correct type, check the OTDR trace for mismatched cable in the cabling. 

•

The cabling has a bad fusion or mechanical splice or a sharp bend. Use the OTDR trace or event table to locate these 
faults.

•

The launch fibers have PC or UPC connectors, but the link being tested has APC connectors.

Note

OVERALL LOSS may show a WARNING if the first or last event is 
hidden. If launch compensation was used, a WARNING occurs if the 
launch event is hidden or if the event after the receive event is hidden.

Summary of Contents for DTX-1800

Page 1: ...April 2004 Rev 11 1 11 2004 2011 Fluke Corporation All rights reserved All product names are trademarks of their respective companies DTX Series CableAnalyzer Technical Reference Handbook ...

Page 2: ...ir or replacement of a defective product which is returned to a Fluke Networks authorized service center within the warranty period To obtain warranty service contact your nearest Fluke Networks authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB destination Fluke Ne...

Page 3: ...eley and its contributors 4 Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A ...

Page 4: ......

Page 5: ...etworks 1 3 Unpacking 1 4 DTX 1800 1 4 DTX 1200 1 4 DTX LT 1 4 DTX ELT 1 5 DTX CLT 1 5 DTX CLT CertiFiber 1 6 DTX MFM2 Multimode Fiber Modules optional 1 7 DTX GFM2 Multimode Fiber Modules optional 1 7 DTX SFM2 Singlemode Fiber Modules optional 1 7 DTX Compact OTDR Optical Time Domain Reflectometry Module optional 1 7 Safety Information 1 8 Basic Features 1 10 ...

Page 6: ... 27 Adjusting the Display Contrast 1 28 Setting the Power Down Timer 1 28 Setting the Backlight Timer 1 28 Enabling or Disabling the Beeper 1 29 Overview of Memory Features 1 29 Inserting and Removing the Memory Card 1 29 Formatting the Memory Card DTX 1800 and DTX 1200 or Internal Memory 1 29 Creating Folders 1 30 Setting the Storage Location DTX 1800 and DTX 1200 1 31 Options for Entering Cable ...

Page 7: ...Cable Type and Outlet Configuration 2 7 Step 3 Running the Autotest 2 8 Step 4 Viewing the Autotest Results 2 11 Step 5 Saving the Results 2 12 Certifying Fiber Cabling 2 12 Required Equipment 2 12 Step 1 Installing the Fiber Modules 2 14 Step 2 Checking the Battery Status and Verifying Operation with Fiber Modules 2 14 Step 3 Selecting a Fiber Type and Test Limit 2 15 Step 4 Configuring the Fiber...

Page 8: ... Automatic Diagnostics 3 11 PASS FAIL Results 3 12 About dB Rules 3 13 Wire Map 3 15 Resistance 3 17 Characteristic Impedance 3 17 Length 3 18 Propagation Delay and Delay Skew 3 19 Insertion Loss 3 20 NEXT Near End Crosstalk 3 22 ACR N Attenuation to Crosstalk Ratio at the Near End 3 24 Return Loss 3 26 PS NEXT Power Sum Near End Crosstalk 3 28 PS ACR N Power Sum Attenuation to Crosstalk Ratio Nea...

Page 9: ...abling Setting the Reference 5 1 Verifying Operation 5 2 Coaxial Test Settings 5 2 Autotest on Coaxial Cabling 5 5 Coaxial Autotest Results 5 9 HDTDR Analyzer 5 10 Resistance 5 10 Impedance 5 10 Length 5 10 Propagation Delay 5 10 Insertion Loss 5 11 Running Single Tests 5 11 6 Diagnosing Copper Cabling Faults Using the Automatic Diagnostics 6 1 Avoiding Tester Induced Failures 6 1 Common Causes of...

Page 10: ... 7 4 Using the Cradle 7 6 Software Requirements 7 6 OTDR Module Features 7 7 Verifying Operation 7 8 Setting Up for OTDR Testing 7 8 Selecting Auto or Manual OTDR Mode 7 10 About Launch and Receive Fibers 7 11 Settings for OTDR Tests 7 18 OTDR Port Connection Quality 7 21 Progress Screen for Extended Test Times 7 22 Running the OTDR Test 7 23 Looking at OTDR Test Results 7 28 Reading the OTDR Resu...

Page 11: ... 10 Selecting Test Reference Cords 8 11 Testing Your Test Reference Cords 8 11 Using Mandrels for Testing Multimode Fiber 8 12 Loss Length Test Settings 8 14 About 1 Jumper Connections 8 18 Autotest in Smart Remote Mode 8 18 Setting the Reference for Smart Remote Mode 8 20 Testing the Test Reference Cords in Smart Remote Mode 8 22 Running the Autotest in Smart Remote Mode 8 24 Smart Remote Mode Au...

Page 12: ... 8 48 Bi Directional Results for Loopback Mode 8 48 Finding Connections with FindFiber 8 50 Using FindFiber in Smart Remote Mode 8 50 Using FindFiber in Loopback Mode 8 55 Using the Power Meter 8 57 Running Single Tests 8 61 Using the Remote Tester with an OptiFiber Tester 8 61 9 Locating Fibers and Faults with the Visual Fault Locator Visual Fault Locator Applications 9 1 Using the Visual Fault L...

Page 13: ...nly 11 15 Diagnosing Low Level Network Problems 11 17 12 Custom Test Settings Creating a Custom Twisted Pair Cable Type 12 1 Creating a Custom Twisted Pair Test Limit 12 2 Creating a Custom Outlet Configuration 12 3 Creating a Custom Fiber Type for Loss Length Tests 12 4 Creating a Custom Limit for Loss Length Tests 12 5 Creating a Custom Fiber Type for OTDR Tests 12 6 Creating Custom Limits for O...

Page 14: ...Folder 13 4 Changing Folders 13 4 Deleting Folders 13 5 Viewing and Managing Saved Results 13 6 Moving or Copying Results to a Memory Card DTX 1800 DTX 1200 13 7 Deleting Results 13 7 Renaming Results 13 8 Sorting Results 13 8 Formatting a Memory Card DTX 1800 DTX 1200 or Internal Memory 13 9 Memory Card Care DTX 1800 DTX 1200 13 9 Uploading Results to a PC 13 10 14 Maintenance and Specifications ...

Page 15: ...pes Tested 14 13 Time for Autotest 14 13 Tone Generator Specifications 14 13 Summary of Performance Specifications 14 14 Length 14 14 Propagation Delay 14 15 Delay Skew 14 15 DC Loop Resistance Test 14 15 Measurement Accuracy 14 19 HDTDX Analyzer Specifications for Cables 100 m 328 ft 14 24 HDTDR Analyzer Specifications for Cables 100 m 328 ft 14 24 Characteristic Impedance 14 24 Impulse Noise 14 ...

Page 16: ...FM2 Fiber Modules 14 37 Regulatory Information 14 37 Memory for Test Results 14 37 Serial Interfaces 14 38 Dimensions without adapter or module 14 38 Weight without adapter or module 14 38 Display 14 38 Appendices A How to Test Your Test Reference Cords Why You Must Do this Test A 1 When You Must Do this Test A 1 Equipment You Must Have A 1 1 Set Up the Tester A 3 2 Clean and Inspect the Connector...

Page 17: ...Contents xiii B Fiber Test Method Names C Loss Test Methods for Fiber Cabling Introduction C 1 1 Jumper Method C 2 2 Jumper Method C 4 3 Jumper Method C 6 Modified 1 Jumper Method C 8 Index ...

Page 18: ...DTX Series CableAnalyzer Technical Reference Handbook xiv ...

Page 19: ...ink Adapters 1 22 1 9 Changing the Personality Module on a DTX PLA001 Adapter 1 23 1 10 Self Test Connections 1 24 1 11 The Main Autotest Screen for Twisted Pair Media 1 26 1 12 Inserting and Removing the Memory Card 1 30 2 1 Using the Text Editing Screen 2 3 2 2 Equipment for Certifying Twisted Pair Cabling 2 5 2 3 Battery Status and Self Test Connections for Twisted Pair Adapters 2 6 2 4 Permane...

Page 20: ...nnections for the DTX ELT and DTX CLT 3 2 3 3 Outlet Configurations 3 4 3 4 Equipment for Certifying Twisted Pair Cabling 3 6 3 5 Permanent Link Test Connections 3 7 3 6 Channel Test Connections 3 8 3 7 Autotest Summary Screen for Twisted Pair Cabling 3 10 3 8 Examples of Automatic Diagnostic Screens 3 11 3 9 PASS and FAIL Results 3 12 3 10 Wire Map Examples 3 15 3 11 Resistance Results 3 17 3 12 ...

Page 21: ...nnections 5 2 5 2 Equipment for Certifying Coaxial Cabling 5 5 5 3 Coaxial Network Cabling Test Connections 5 7 5 4 Coaxial Video Cabling Test Connections 5 8 5 5 Autotest Results for Coaxial Cabling 5 9 6 1 HDTDX Plot permanent link adapters used 6 8 6 2 Interpreting HDTDX Plots 6 9 6 3 HDTDR Plot permanent link adapters used 6 11 6 4 Interpreting HDTDR Plots 6 12 7 1 Installing the OTDR Module 7...

Page 22: ...Features 7 36 8 1 Installing and Removing Fiber Modules 8 4 8 2 Fiber Module Features 8 5 8 3 SC ST LC and FC Connector Adapters 8 6 8 4 Installing the Connector Adapter 8 7 8 5 Self Test Connections for Fiber Modules 8 8 8 6 Wrapping a Test Reference Cord Around a Mandrel 8 13 8 7 Example of How to Determine the Number of Adapters Setting 8 16 8 8 Equipment for Testing in Smart Remote Mode 1 Jump...

Page 23: ...ipment for Using FindFiber in Smart Remote Mode 8 51 8 25 Using FindFiber in Smart Remote Mode 8 53 8 26 Main Tester Results for FindFiber Test Smart Remote Mode 8 54 8 27 Equipment for Using FindFiber in Loopback 8 55 8 28 Using FindFiber in Loopback Mode 8 56 8 29 Equipment for Using the Power Meter in MONITOR Mode 8 57 8 30 Connections for Monitoring Optical Power MONITOR mode 8 58 8 31 Power M...

Page 24: ...eline Insertion Loss Measurement Accuracy 14 20 14 6 Baseline NEXT Loss Measurement Accuracy 14 21 14 7 Baseline Return Loss Measurement Accuracy 14 22 14 8 Baseline ACR F Measurement Accuracy 14 23 A 1 Equipment for Testing the Test Reference Cords A 2 A 2 Examples of Fiber Endfaces A 4 A 3 Reference Connections A 5 A 4 Connections for Testing a Test Reference Cord A 7 C 1 1 Jumper Reference and ...

Page 25: ...Remote Requirements for Coaxial Single Tests 5 12 6 1 Diagnosing Twisted Pair Test Failures 6 2 7 1 OTDR Test Settings 7 18 7 2 OTDR Results Screen Measurements 7 29 7 3 Event Types 7 37 7 4 OTDR Measurement Details 7 42 7 5 Manual OTDR Settings 7 48 8 1 ANSI TIA 568 C Mandrel Requirements 8 12 8 2 Loss Length Test Settings 8 14 10 1 Causes of Failures in Fiber Links 10 1 10 2 Diagnosing Loss Leng...

Page 26: ...vity Test Settings 11 5 11 2 Diagnosing Low Level Network Problems 11 17 12 1 Settings for Custom OTDR Limits 12 8 14 1 Troubleshooting the Tester 14 9 14 2 Level IV Accuracy Performance Parameters per IEC Guidelines 14 16 14 3 DTX RS 232 Cable Pin Connections 14 38 B 1 Test Method Names B 1 ...

Page 27: ...ing in less than 28 seconds All models meet Level III and Level IV accuracy requirements Color display clearly indicates PASS FAIL results Automatic diagnostics report distance to and likely causes of common faults Toner feature helps you locate jacks and automatically starts an Autotest upon tone detection Stores up to 250 Cat 6 Autotest results including graphical data in internal memory The DTX...

Page 28: ...ted Cat 6 Cat 6A cabling for 10 Gigabit Ethernet applications The DTX CLT also supports the optional fiber modules and DTX NSM module The DTX CLT CertiFiber lets you certify fiber optic cabling For a comparison chart of features see page 14 11 Registration Registering your product with Fluke Networks gives you access to valuable information on product updates troubleshooting tips and other support...

Page 29: ...ble if possible www flukenetworks com support flukenetworks com 1 425 446 4519 Australia 61 2 8850 3333 or 61 3 9329 0244 Beijing 86 10 6512 3435 Brazil 11 3759 7600 Canada 1 800 363 5853 Europe 31 0 40 2675 600 Hong Kong 852 2721 3228 Japan 03 6714 3117 Korea 82 2 539 6311 Singapore 65 6799 5566 Taiwan 886 2 227 83199 USA 1 800 283 5853 Visit our website for a complete list of phone numbers ...

Page 30: ...ard USB cable for PC communications DTX RS 232 serial cable for PC communications Two ac adapters DTX Series CableAnalyzer Users Manual DTX Series CableAnalyzer Product CD LinkWare Software CD DTX 1200 DTX 1200 CableAnalyzer with lithium ion battery pack DTX 1200 Smart Remote with lithium ion battery pack Two Cat 6A Class EA permanent link adapters Two 6A Class EA channel adapters Two headsets Car...

Page 31: ...arrying straps DTX REFERENCE module USB cable for PC communications Two ac adapters DTX ELT CableAnalyzer Getting Started Guide DTX ELT CableAnalyzer Product Manuals CD LinkWare Software CD DTX CLT DTX CLT CableAnalyzer with lithium ion battery pack DTX CLT SmartRemote with lithium ion battery pack Two 6A Class EA channel adapters Carrying case Two carrying straps DTX REFERENCE module USB cable fo...

Page 32: ...tRemote with lithium ion battery pack Two DTX SFM2 Fiber Modules for testing at 1310 nm and 1550 nm Two 9 125 µm singlemode test reference cords 2 m SC SC DTX CLT CertiFiber Getting Started Guide DTX CLT CertiFiber Product Manuals CD LinkWare Software CD DTX CertiFiber MS Multimode Singlemode Kit DTX CLT CertiFiber with lithium ion battery pack DTX CLT CertiFiber SmartRemote with lithium ion batte...

Page 33: ...hernet applications Two 50 125 µm multimode test reference cords 2 m SC SC DTX MFM2 GFM2 SFM2 Fiber Modules Users Manual DTX SFM2 Singlemode Fiber Modules optional Two DTX SFM2 Fiber Modules for testing at 1310 nm and 1550 nm Two 9 125 µm singlemode test reference cords 2 m SC SC DTX MFM2 GFM2 SFM2 Fiber Modules Users Manual Note The test reference cords and connector adapter types provided are su...

Page 34: ...ng so is a misapplication of this product which can result in damage to the tester and create a potential shock hazard to the user Always turn on the tester before connecting it to a cable Turning the tester on activates the tool s input protection circuitry Table 1 1 International Electrical Symbols X Warning Risk of fire electric shock or personal injury W Warning or Caution Risk of damage or de...

Page 35: ... test results perform the reference procedure every thirty days as described under Setting the Reference in Chapters 3 and 5 The permanent link interface adapters may not perform properly or may be damaged if they are handled improperly See page 1 20 for important handling information Turn off the tester before attaching or removing modules Leave the module bay covers in place when modules are not...

Page 36: ...the tester s basic features Physical Features Figures 1 1 and 1 2 describe the tester s features Figure 1 3 describes the smart remote s features amd29f eps Figure 1 1 Tester Front Panel Features TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 1 2 3 4 5 6 7 8 9 10 11 ...

Page 37: ...es E M On off key F O Press to use the headset to talk to the person at the other end of the link G G Press to switch the backlight between bright and dim settings Hold for 1 second to adjust the display contrast H B C A D Arrow keys for navigating through screens and incrementing or decrementing alphanumeric values I H Enter key selects the highlighted item from a menu J I Exits the current scree...

Page 38: ...DTX Series CableAnalyzer Technical Reference Handbook 1 12 amd33f eps Figure 1 2 Tester Side and Top Panel Features ...

Page 39: ...sh in then release the card E USB and RS 232C DTX 1800 DTX 1200 ports for uploading test reports to a PC and updating the tester s software The RS 232C port uses a custom DTX cable available from Fluke Networks See Chapter 14 for more information F Headset jack for talk mode G Connector for the ac adapter The LED turns on when the tester is connected to ac power Red Battery is charging Green Batte...

Page 40: ...DTX Series CableAnalyzer Technical Reference Handbook 1 14 amd30f eps Figure 1 3 Smart Remote Features ...

Page 41: ...ne LED lights and the tone generator turns on when you press P but the main tester is not connected G Low battery LED lights when the battery is low H P Starts the test currently selected on the main unit Activates the tone generator for twisted pair cabling if no main tester is detected The test starts when both testers are connected I O Press to use the headset to talk to the person at the other...

Page 42: ...ery To charge the battery connect the ac adapter to the battery pack as shown in Figure 1 4 You may charge the battery when it is attached or detached from the tester Figure 1 4 shows how to remove the battery The battery charges fully in about 4 hours with the tester off A fully charged battery lasts for at least 12 hours of typical use Note The battery will not charge at temperatures outside of ...

Page 43: ...Getting Acquainted Basic Features 1 17 1 amd124f eps Figure 1 4 Charging and Removing the Battery ...

Page 44: ...screen verify that the test type is set to Twisted Pair Press J Change Media to change it if necessary If you connected the testers through fiber modules On the main Autotest screen verify that the test type is set to Fiber Loss Press J Change Media to change it if necessary 3 Turn the rotary switch to SPECIAL FUNCTIONS 4 Use D to highlight Battery Status then press H The Time Remaining value tell...

Page 45: ...Getting Acquainted Basic Features 1 19 1 amd102f eps Figure 1 6 Connections for Using the Battery Status Function ...

Page 46: ... adapter types contact Fluke Networks or visit the Fluke Networks website The adapter s Autotest counters are helpful for gauging wear on the adapter s jack or plug and for tracking the number of tests run on a job You can view and reset the counters on the Version Information screen in SPECIAL FUNCTIONS See Checking the Hardware and Software Versions on page 1 25 Figure 1 7 shows how to attach an...

Page 47: ...fy fiber optic cabling The DTX NSM module lets you verify network service See Chapters 8 and 11 for details on these modules amd35f eps Figure 1 7 Attaching and Removing Adapters TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 ...

Page 48: ...DTX Series CableAnalyzer Technical Reference Handbook 1 22 amd36f eps Figure 1 8 Handling Guidelines for Permanent Link Adapters ...

Page 49: ...dule in its original static protection bag Put the new module in place and tighten the screw with your fingers WCaution Tighten the screw snugly with your fingers only Do not overtighten Doing so can damage the module or the end of the cable amd74f eps Figure 1 9 Changing the Personality Module on a DTX PLA001 Adapter The optional DTX PLCAL automated calibration kit lets you calibrate your permane...

Page 50: ...en press H 4 If fiber modules are installed in addition to twisted pair adapters select Mainframe 5 Press P If the tester reports an error refer to If Something Seems Wrong on page 14 9 amd168 eps Figure 1 10 Self Test Connections Permanent link adapter Channel adapter TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 ...

Page 51: ...er of tests run with the adapter Current Series is a counter you can reset To reset the Current Series counter use the softkeys to access the link adapter s Version screen then press H To determine if your tester needs a software update visit the Fluke Networks website to see if an update is available See Chapter 14 for details on updating the tester s software The Main Autotest Screen The Autotes...

Page 52: ... and worst values for each pair Standard The tester displays and saves plot data for frequency based tests such as NEXT return loss and attenuation The tester saves data for the frequency range required by the selected test limit Extended The tester saves data beyond the frequency range required by the selected test limit J Folder The folder where results will be saved K Operator Site Operator The...

Page 53: ...s N when you are done 6 To change the date or time format press J Change Format on the Date or Time screen Use D to highlight the format you want then press H Changing the Length Units 1 Turn the rotary switch to SETUP use D to highlight Instrument Settings then press H 2 Press Cto go to the tab with the Length Units selection 3 Use D to highlight Length Units then press H 4 Use D to highlight the...

Page 54: ...nutes of inactivity This setting is not adjustable Note The power down timer is inactive when the ac adapter is connected or when the USB or RS 232 serial port is active To set the power down timer 1 Turn the rotary switch to SETUP use D to highlight Instrument Settings then press H 2 Press C to go to the tab with the Power Down Time Out setting then press H 3 Use D to highlight the setting you wa...

Page 55: ... can also store up to 500 Cat 6 Autotest results including graphical data on a 16 MB card The testers can also use cards with higher capacity and secure digital SD memory cards The card capacities supported depend on the DTX software version See the Fluke Networks Knowledge Base on the Fluke Networks website for details Inserting and Removing the Memory Card Insert the memory card into the slot on...

Page 56: ...0 Insert a memory card into the tester 2 Turn the rotary switch to SETUP 3 Use D to highlight Instrument Settings then press H 4 Press D to highlight Current Folder then press H 5 DTX 1800 DTX 1200 Press J if necessary if you want to create the folder on the memory card 6 Press L Create Folder 7 Use JKL BCAD and H to enter a folder name Press N when you are done 8 Use AD to highlight the new folde...

Page 57: ...Ds When you save a test you enter a name for the test At a job site you usually name each test with the identification code assigned to the link tested You can enter this ID character by character or by selecting the ID from a pre generated list To select a method for entering cable IDs 1 Turn the rotary switch to SETUP 2 Use D to highlight Instrument Settings then press H 3 Press H to select Cabl...

Page 58: ...enter the last ID in the sequential list Press N when you are finished 4 Press L Sample List to see what the list will look like When you use an ID from a list the ID is marked with a See page 2 22 for more information on the Auto Sequence feature Automatically Saving Results DTX 1800 DTX 1200 DTX LT DTX CLT DTX CLT CertiFiber When Auto Save Results is set to Yes the tester automatically saves Aut...

Page 59: ...u if you are about to overwrite existing results of the same type or if the media type for the existing results does not match the type for the results you are trying to save Using the Talk Mode The talk mode lets you talk to the person at the other end of a twisted pair or fiber link Two way communication over twisted pair requires one good wire pair Two way communication over fiber requires fibe...

Page 60: ... permanent link adapters DTX PLCAL kit required for DTX PLA002 adapters DSP PLCAL kit required for DTX PLA001 adapters Transfer custom limits between testers Details about using LinkWare software are provided in the LinkWare Getting Started Guide and the online help available under Help on the LinkWare menu Updates to LinkWare software are available on the Fluke Networks website The LinkWare Stats...

Page 61: ...ss H 1 4 DTX 1800 DTX 1200 Press J Int Memory to switch between memory card and internal memory status Step 2 Entering Job Information Job information includes the operator name name of the job site and the customer s company name These settings are stored with results you save To enter job information 2 1 Turn the rotary switch to SETUP 2 2 Use D to highlight Instrument Settings then press H 2 3 ...

Page 62: ... if present then press H Note If you change storage location and the selected Current Folder does not exist in the new location the tester creates a new folder with the current folder s name in the new location Step 4 Setting Up a Job Folder You can organize test results by saving them in a folder named for the job To set up a job folder 4 1 DTX 1800 DTX 1200 Insert a memory card into the tester i...

Page 63: ...racters available for use To select a character to enter in the text box use AD BC to highlight the character then press H The character is entered to the left of the cursor B The text you are entering C The cursor Use J and K to move the cursor D The item you are editing E Use JKL to move the cursor and delete characters 1 2 3 4 5 ...

Page 64: ... 5 2 Use D to highlight Instrument Settings then press H 5 3 Press H to select Cable ID Source 5 4 Use D to highlight None then press H Certifying Twisted Pair Cabling This tutorial familiarizes you with testing twisted pair cabling by guiding you through the following tasks Attaching twisted pair adapters Checking the battery status and verifying operation with twisted pair adapters Running an Au...

Page 65: ...ds optional D For testing permanent links two permanent link adapters E For testing channels two channel adapters Note To run an Autotest without connecting to cabling you may connect the tester and remote together with a permanent link and a channel adapter or two channel adapters and a patch cord 1 2 3 4 5 TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTI...

Page 66: ...to highlight Self Test then press H 1 5 If fiber modules are installed in addition to twisted pair adapters select Mainframe 1 6 Press Pto start the self test Note You can also check the battery status by connecting with channel adapters and a patch cord or by connecting through a link amd16 6eps Figure 2 3 Battery Status and Self Test Connections for Twisted Pair Adapters Permanent link adapter C...

Page 67: ...ser not available on the DTX ELT Manufacturer Specific brands of twisted pair cable 2 3 Use D to highlight the group for the cable type you will test then press H 2 4 Use D to highlight the cable type you will test then press H 2 5 On the Twisted Pair menu press H to select Test Limit 2 6 The first Test Limit screen shows the most recently used limits To see the list of test limit groups press JMo...

Page 68: ...connections for permanent link and channel installations To run an Autotest without connecting to installed cabling connect the tester and remote as shown in Figure 2 3 on page 2 6 or connect using two channel adapters and a patch cord 3 3 Turn the rotary switch to AUTOTEST 3 4 If a fiber module is installed verify that the media type is set to Twisted Pair Press J Change Media to change it if nec...

Page 69: ...ork area Optional consolidation point Patch panel Wall outlet Horizontal cabling End permanent link Start permanent link Tester with permanent link adapter Smart remote with permanent link adapter TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK ...

Page 70: ...n point Patch panels Hub or switch Wall outlet Horizontal cabling End channel Tester with channel adapter Smart remote with channel adapter Patch cord from PC Patch cord from hub or switch Start channel TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 ...

Page 71: ...selected test limit U The measurement is within the tester s accuracy uncertainty range See page 3 12 for details To see the results for an individual measurement use D to highlight the test then press H If the test failed press J Fault Info for a diagnosis of the fault Figure 2 6 shows a typical diagnostic screen The Next Fault softkey is available if the tester detected more than one fault See C...

Page 72: ... Certifying Fiber Cabling Note The fiber modules are not compatible with the DTX ELT This section familiarizes you with the optional DTX MFM2 DTX GFM2 and DTX SFM2 fiber modules and the DTX CLT CertiFiber tester by guiding you through the following tasks Installing fiber modules Checking the battery status and verifying operation with the fiber modules Setting a reference in Smart Remote mode Runn...

Page 73: ...ional C Two ac adapters with line cords optional D Test reference cords Match the fiber to be tested Long ends must have SC connectors For the other connectors match the connectors in the link E Two singlemode adapters of the appropriate type F Two mandrels Recommended when testing multimode fiber with DTX MFM2 modules See page 8 12 G Fiber cleaning supplies H A microscope for inspecting fiber con...

Page 74: ...y covers in place when the fiber modules are not installed Step 2 Checking the Battery Status and Verifying Operation with Fiber Modules 2 1 Clean and inspect the tester s connectors and the connectors on two SC SC test reference cords See page 8 9 for details on cleaning 2 2 Connect the tester and smart remote together as shown in Figure 2 9 2 3 Turn the rotary switch to SPECIAL FUNCTIONS 2 4 Use...

Page 75: ...ganized in groups Generic Generic types of fiber Custom Fiber types entered by a DTX user Manufacturer Specific brands of fiber cable 3 4 Use D to highlight a group for the fiber type you will test then press H 3 5 Use D to highlight the fiber type you will test then press H 3 6 On the Fiber menu use A to highlight Test Limit if it is not highlighted then press H 3 7 The first Test Limit screen sh...

Page 76: ...connector at each end enter 2 Number of Splices Enter the number of splices in the cabling you will test Connector Type Select the type of connector used in the cabling you will test Test Method 1 Jumper Step 5 Setting the Reference 5 1 Clean the connectors on the tester and the two test reference cords 5 2 Turn the rotary switch to SPECIAL FUNCTIONS Press H to select Set Reference If both a fiber...

Page 77: ...Tutorials on Setup and Test Procedures Certifying Fiber Cabling 2 17 2 amd145f eps Figure 2 10 Setting the Reference in Smart Remote Mode 1 Jumper Method ...

Page 78: ...han at 1300 nm Singlemode test reference cord 0 20 dB or less for 1310 nm and 1550 nm 6 5 If a result is more than the limit shown above use the procedure given in Appendix A to test the cords in the path that failed Input Fiber or Output Fiber When you have good test reference cords set the reference and do these steps 6 1 through 6 5 again before you test a fiber link Note The Input Fiber is the...

Page 79: ...Tutorials on Setup and Test Procedures Certifying Fiber Cabling 2 19 2 amd175 eps Figure 2 11 Testing the Test Reference Cords in Smart Remote Mode ...

Page 80: ...Make the connections as shown in Figure 2 12 7 3 Turn the rotary switch to AUTOTEST If a copper adapter is attached verify that the media type is set to Fiber Press J Change Media to change it if necessary 7 4 Press P amd146a eps Figure 2 12 Testing a Fiber Link in Smart Remote Mode 1 Jumper Method Test reference cords Test reference cords ...

Page 81: ...d by the selected test limit To see the results for an individual measurement use D to highlight the test then press H See Chapter 8 for details on fiber test results Step 8 Saving the Results 8 1 Press N 8 2 Use the text editing screen to enter a name for the results See Figure Figure 2 1 on page 2 3 for details on editing text 8 3 Press N when you are done This concludes the tutorial on testing ...

Page 82: ...ment Feature The auto increment feature increments the last character in the fiber ID you enter For example if you save a test with the ID A0 the tester increments the ID as follows A0 A1 A2 A9 A10 A11 A99 A100 A101 Consecutive digits increment from right to left but other characters do not Letters increment through the alphabet shown on the text editing screen 1A 1B 1C 1Y 1Z 1Ç 1Û 1Ü 1A To use th...

Page 83: ... increment For example the following start and stop IDs could be used for testing the cabling in two rooms where each room has three cable drops Start ID ROOM A DROP 1 Stop ID ROOM B DROP 3 These IDs produce the following ID list ROOM A DROP 1 ROOM A DROP 2 ROOM A DROP 3 ROOM B DROP 1 ROOM B DROP 2 ROOM B DROP 3 The steps below guide you through creating a sequential ID list for the following scen...

Page 84: ...e the sample list If the tester shows an error message check your Start and Stop IDs for the problems listed below 14 Press N when you are done setting up the list The list is saved in the tester s internal memory If the ID sequence is invalid check the following Verify that the types of characters in each position match between the start and stop IDs For example using the letter O as the third ch...

Page 85: ...ndard The examples use the following abbreviations f floor number s telecom room letter a patch panel letter n For a horizontal link port number For a backbone backbone cable letter or number d copper pair or fiber strand number in backbone cable b building Horizontal Link Identifier Horizontal links run between telecommunications closets and work areas Format fs an Example 11C D32 The link tested...

Page 86: ... that run between buildings Format b1 f s1 b2 fs2 n d Example LBRY 01A AUD 01A 5 16 The cable tested is in the backbone cable that runs between the library LBRY floor 1 telecom room A and the auditorium AUD floor 1 telecom room A The backbone cable is cable 5 The cable or fiber tested is number 16 in backbone cable 5 ...

Page 87: ...er and smart remote and let them sit for 1 minute before setting the reference Set the reference only after the testers have reached an ambient temperature between 10 C and 40 C 50 F and 104 F 1 Attach permanent link and channel adapters and make the connections shown in Figure 3 1 For the DTX ELT and DTX CLT which do not include permanent link adapters use the reference module included to connect...

Page 88: ...ing them with your tester or in a network Patch cord testing requires the optional DTX PCU6S Patch Cord Adapter Set Contact Fluke Networks or visit the Fluke Networks website for more information Note The DTX PCU6S Patch Cord Adapter Set is not compatible with the DTX ELT Permanent link adapter Channel adapter TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK TALK MONITOR ENTER TEST SAVE SPECIAL FUNC...

Page 89: ...UP Twisted Pair NVP Nominal velocity of propagation which is used with the measured propagation delay to determine cable length The default value defined by the selected cable type represents the typical NVP for that cable type You may enter a different value if necessary To determine the actual value change the NVP until the measured length matches the known length of a cable Use a cable at least...

Page 90: ...andbook 3 4 amd180 eps Figure 3 3 Outlet Configurations T568B T568A Ethernet and M12 Two Pair Crossed USOC Single Pair USOC Two Pair Ethernet and M12 Two Pair Token Ring Crossover 1000BASE T Crossover Rollover ATM TP PMD Straight ATM TP PMD Crossed ...

Page 91: ...t saved which lets you save more results Saved results show worst margins and worst values for each pair SPECIAL FUNCTIONS Set Reference The tester must be referenced to the smart remote the first time the two units are used together You should also set the reference every 30 days See Setting the Reference on page 3 1 SETUP Instrument Settings Settings for saving tests Cable ID Source Current Fold...

Page 92: ...ange Media to select Twisted Pair as the media type 5 Press Pon the tester or smart remote To stop the test at any time press I 6 The tester shows the Autotest Summary screen when the test is complete see page 3 10 To view results for a specific parameter use A D to highlight the parameter then press H If the Autotest failed press J Fault Info for possible causes of the failure 7 To save the resul...

Page 93: ...k area Optional consolidation point Patch panel Wall outlet Horizontal cabling End permanent link Start permanent link Tester with permanent link adapter Smart remote with permanent link adapter TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK ...

Page 94: ...n point Patch panels Hub or switch Wall outlet Horizontal cabling End channel Tester with channel adapter Smart remote with channel adapter Patch cord from PC Patch cord from hub or switch Start channel TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 ...

Page 95: ...sistance Characteristic impedance Length Propagation delay Delay skew Insertion loss attenuation NEXT near end crosstalk and NEXT at the smart remote Return loss ACR N attenuation to crosstalk ratio at the near end and ACR N at the smart remote PS ACR N power sum attenuation to crosstalk ratio and PS ACR N at the smart remote ACR F equal level far end crosstalk PS ACR F power sum equal level far e...

Page 96: ... selected test standard See PASS FAIL Results on page 3 12 B Press K or L to scroll the screen C If the test failed press J for diagnostic information D Action prompt for the screen Use D A to highlight a parameter then press H E E The measurement was within limits i The parameter was measured but has no PASS FAIL limit in the selected test limit The results are for informational purposes only See...

Page 97: ...ation about the failure The diagnostic screens show likely causes of the failure and suggest actions you can take to solve the problem A failed test may produce more than one diagnostic screen In this case press ADBC to see additional screens Figure 3 8 shows examples of diagnostic screens amd75f eps Figure 3 8 Examples of Automatic Diagnostic Screens ...

Page 98: ...e 3 9 and the notation is required by the selected test standard These results are considered marginal Marginal passing and failing results are marked with blue and red asterisks respectively A PASS may be considered a passing result A FAIL should be considered a failure amd42f eps Figure 3 9 PASS and FAIL Results Limit PASS PASS FAIL Tester s accuracy uncertainty range FAIL FAIL PASS ...

Page 99: ...est and the test limits that use the rules For more information see the Knowledge Base on the Fluke Networks website 3 dB Rule This rule applies to all test limits where return loss is measured At frequencies where insertion loss is less than 3 0 dB return loss is not evaluated against a limit 4 dB Rule This rule applies to the following test limits ISO IEC 11801 EN 50173 Aus NZ JIS At frequencies...

Page 100: ...nnel Test Limits Test Class for Permanent Link Test Limit D E EA F FA NEXT 4 dB 4 dB 4 dB 4 dB 4 dB PS NEXT 4 dB 4 dB 4 dB 4 dB 4 dB ACR N 4 dB 4 dB 4 dB 4 dB 4 dB PS ACR N 4 dB 4 dB 4 dB 4 dB 4 dB ACR F 70 dB 70 dB 70 dB PS ACR F 67 dB 67 dB 67 dB Return Loss 3 dB 3 dB 3 dB 3 dB 3 dB Test Class for Channel Test Limit D E EA F FA NEXT 4 dB 4 dB 4 dB 4 dB 4 dB PS NEXT 4 dB 4 dB 4 dB 4 dB 4 dB ACR N...

Page 101: ...Tip The wire map test in Single Test mode features a scanning function that runs the wire map test continuously This function is helpful for locating intermittent wiring faults Figure 3 10 Wire Map Examples continued amd143i bmp amd144i bmp amd81i bmp Correct wiring 568B Shield continuity is shown if a shielded cable type such as FTP or SSTP is selected in SETUP Open Wire 3 is open 1 0 m from the ...

Page 102: ...nce Handbook 3 16 Figure 3 10 Wire Map Examples cont amd82i bmp amd83i bmp amd84i bmp Split pair A wire in the 3 6 pair is crossed with a wire in the 4 5 pair Reversed pair Wires 1 and 2 are crossed Crossed pairs Pairs 1 2 and 3 6 are crossed ...

Page 103: ...rn loss test to fail The tester s HDTDR test tells you the distance to the bad connection Most standards do not have a limit for resistance The tester shows an i when no limit is available Figure 3 11 shows the resistance results screen Tip The resistance test in Single Test mode features a scanning function that runs the resistance test continuously This function is helpful for locating intermitt...

Page 104: ... 5 difference in measured length among cable pairs is normal because of the following Signals travel at slightly different speeds in each cable pair but the tester uses the same speed to calculate the length of each pair The twist rate varies slightly among cable pairs If you untwisted and straightened all the pairs they would have slightly different lengths Figure 3 12 shows a length results scre...

Page 105: ...trical characteristics and length Delay skews are the differences in propagation delays between the shortest delay and the delays of the other cable pairs The shortest delay is shown as 0 ns in the delay skew results The propagation delay and delay skew results show a limit if the measurements required by the selected test limit Otherwise the results always show PASS Figure 3 13 shows the propagat...

Page 106: ...copper wire and connecting hardware and by leakage of electrical energy through the cable s insulation At higher frequencies signals tend to travel only near the surface of a conductor This skin effect along with the cabling s inductance and capacitance cause insertion loss to increase with frequency Figure 3 15 describes the insertion loss plot amd90f eps Figure 3 14 Insertion Loss is a Decrease ...

Page 107: ...he better the cabling performance Press L to see plots of individual pairs D Measured insertion loss for the cable pairs Lower insertion loss means better cabling performance E The cursor and its location on the frequency scale When you first view the plot the cursor is placed at the worst margin Use BC to move the cursor if the plot is in zoom mode press KChange To Cursor first F The measured ins...

Page 108: ...m the signal source are weaker and cause less trouble than crosstalk nearer the source Figure 3 16 For this reason NEXT is measured from both ends of the cabling For NEXT failures the tester s diagnostic screens J Fault Info may show more than one possible cause for the failure In this case you can use the HDTDX analyzer results to further diagnose the problem See page 6 7 for details Figure 3 17 ...

Page 109: ...e E The limit line in red for NEXT The higher the measurements rise above the limit line the better the cabling performance If the line is black NEXT is not evaluated at those frequencies See page 3 13 Press L to see plots of individual pairs F The cursor and its location on the frequency scale When you first view the plot the cursor is placed at the worst margin Use BC to move the cursor if the p...

Page 110: ...in Figure 3 18 The tester calculates ACR N as the difference in dB between NEXT and attenuation insertion loss Higher ACR N values mean received signals are much larger than crosstalk signals Higher ACR N values correspond to better cabling performance Figure 3 19 describes the ACR N plot Note The 4 dB rule may apply to your ACR N results See page 3 13 amd91f eps Figure 3 18 Attenuation to Crossta...

Page 111: ...ce E The limit line in red for ACR N The higher the measurements rise above the limit line the better the cabling performance If the line is black ACR N is not evaluated at those frequencies See page 3 13 Press L to see plots of individual pairs F The cursor and its location on the frequency scale When you first view the plot the cursor is placed at the worst margin Use BC to move the cursor if th...

Page 112: ...tems use directional couplers to distinguish between incoming and outgoing signals The couplers may interpret strong reflected signals as incoming data resulting in data errors A return loss plot indicates how well a cable s impedance matches its rated impedance over a range of frequencies Figure 3 21 describes the return loss plot For return loss failures the testers diagnostic screens J Fault In...

Page 113: ...mance E The limit line in red for return loss The higher the measurements rise above the limit line the better the cabling performance If the line is black return loss is not evaluated at those frequencies See page 3 13 Press L to see plots of individual pairs F The cursor and its location on the frequency scale When you first view the plot the cursor is placed at the worst margin Use BC to move t...

Page 114: ... calculate PS ACR N values Higher PS ACR N values mean received signals are much larger than the crosstalk from all the other cable pairs Higher PS ACR N values correspond to better cabling performance PS ACR N is the difference in dB between each wire pair s attenuation insertion loss and the combined crosstalk received from the other pairs The tester uses the PS NEXT and attenuation values to ca...

Page 115: ...end crosstalk signals travel the same distance they tend to add up in phase Therefore high ACR F is critical when two or more wire pairs carry signals in the same direction 1000BASE T carries bi directional signals on all four wire pairs so ACR F is a critical parameter for 1000BASE T certification Like ACR N ACR F represents a signal to noise ratio for the cabling Higher ACR F values mean that da...

Page 116: ...stalk and poor ACR F performance Figure 3 23 describes the ACR F plot PS ACR F Test Note PS ACR F is also known as PSELFEXT power sum attenuation to crosstalk ratio far end PS ACR F results show how much the far end of each cable pair is affected by the combined far end crosstalk from the other pairs PS ACR F is the difference in dB between the test signal and the crosstalk from the other pairs re...

Page 117: ...ce E The limit line in red for ACR F The higher the measurements rise above the limit line the better the cabling performance If the line is black ACR F is not evaluated at those frequencies See page 3 13 Press L to see plots of individual pairs F The cursor and its location on the frequency scale When you first view the plot the cursor is placed at the worst margin Use BC to move the cursor if th...

Page 118: ...without a remote Table 3 4 shows which tests require a smart remote Single tests use the selected test limit to produce a PASS FAIL result for the test Each single test also produces results for other measurements For example the wire map test also produces propagation delay and delay skew results To see these results press I when the single test is finished then press K View Results To save a sin...

Page 119: ...be detected AC Wire Map Required See Chapter 4 Resistance Optional Impedance Optional Test is available only for limits that require the impedance measurement Length Optional Propagation Delay Optional Delay Skew Optional Insertion Loss Required NEXT PS NEXT Recommended The NEXT test may fail if the end of the cabling is not properly terminated with a remote or resistors ACR F PS ACR F Required AC...

Page 120: ...ric devices Active links in the same pathway can also cause noise Noise distorts the shape of digital signals as shown in Figure 3 24 Too much noise can cause transmission errors resulting in poor network performance The impulse noise test lets you monitor noise on inactive twisted pair cabling to determine if the noise may affect network operation amd95f eps Figure 3 24 Causes and Effects of Nois...

Page 121: ... Turn the rotary switch to MONITOR and turn on the smart remote then connect to the testers to the ends of the cabling 3 Press P 4 To adjust the noise threshold press LStop then use A D to change the value Press P to resume testing Tip Fluke Networks recommends a noise threshold of 30 mV with an average pulse rate below 0 01 sec for testing 1000BASE T Gigabit Ethernet cabling To stop the test at a...

Page 122: ... A The average number of noise hits per second B The highest number of noise hits per second since the start of the test The time shows when the peak was recorded C The minimum level of noise considered to be a noise hit To change the threshold press L Stop then use A D D To stop the test press L Stop 1 2 4 3 ...

Page 123: ...g Note The tone generator does not generate the IntelliTone signal To use the tone generator 1 Attach a twisted pair adapter to the tester or smart remote 2 Connect the tester or smart remote to the cabling as shown in Figure 3 26 3 To turn on the tester s toner turn the rotary switch to AUTOTEST or SINGLE TEST then press P 4 To turn on the smart remote s toner press P 5 Use a tone probe to locate...

Page 124: ...re 3 26 Using the Tone Generator I N TE LL I T O N E I N TE LL I T O N E 20 0 PR O BE 10 0 PR O BE Volume control Patch panel Tester or smart remote TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK Press to start the toner Tone probe such as the Fluke Networks IntelliTone probe ...

Page 125: ...to select Twisted Pair 3 Press C to select tab 2 4 Press D to highlight AC Wire Map then press H 5 Use D to highlight Enable then press H Note Always disable the AC Wire Map test when not testing through a PoE device Autotest Through a PoE Device 1 Enable the AC Wire Map test 2 Connect to the cabling as shown in Figure 4 1 for a permanent link or Figure 4 2 for a channel 3 Verify that the PoE devi...

Page 126: ...DTX Series CableAnalyzer Technical Reference Handbook 4 2 amd24f eps Figure 4 1 Testing a Permanent Link Through a PoE Device ...

Page 127: ...Testing Twisted Pair Through a PoE Device Autotest Through a PoE Device 4 3 4 amd58f eps Figure 4 2 Testing a Channel Through a PoE Device ...

Page 128: ... AC electrical characteristics of some faults limit the measurements available from the fault Figure 4 3 describes examples of AC wire map screens When the tester detects multiple wire map faults or cannot map the cable wiring it may not display the wire map screen but may show a diagnostics screen instead Figure 4 4 describes examples of these screens Tip To isolate faults when limited wire map o...

Page 129: ... on either or both wires Short between pairs 1 2 and 3 6 The short is 1 7 m from the tester The short may be between two three or all four wires Split pair on pairs 1 2 and 3 6 The split pair starts 30 0 m and ends 52 2 m from the main tester Notes AC wire maps show the wire pair numbers next to each other if there is a fault on the cable AC wire maps do not show the shield connection unless there...

Page 130: ... Wire Map Results for Complex Faults amd43 bmp amd44 bmp The tester detected one or more wire map faults on pairs 1 2 and 3 6 about 4 ft from the tester The distance to faults may not be given for some types of complex faults The tester detected multiple complex faults on the cabling ...

Page 131: ...st as a Single Test 4 7 4 Running the AC Wire Map Test as a Single Test To run the AC Wire Map test as a single test enable the test in SETUP turn the rotary switch to SINGLE TEST then select Wire Map Note The scanning function is not available for the AC wire map test ...

Page 132: ...DTX Series CableAnalyzer Technical Reference Handbook 4 8 ...

Page 133: ...res maximum accuracy of test results You do not need to set the reference after changing link interface adapters To set the reference do the following Note Turn on the tester and let it sit for 1 minute before setting the reference Set the reference only after the testers have reached an ambient temperature between 10 C and 40 C 50 F and 104 F 1 Attach coaxial adapters to the main and remote teste...

Page 134: ...CTIONS 3 Use D to highlight Self Test then press H 4 Press P If the tester reports an error refer to If Something Seems Wrong on page 14 9 Coaxial Test Settings Table 5 1 describes the settings that apply to coaxial cabling tests To access the settings turn the rotary switch to SETUP use D to highlight Coax then press H TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK TALK MONITOR ENTER TEST SAVE SP...

Page 135: ...t SETUP Coaxial NVP Nominal velocity of propagation which is used with the measured propagation delay to determine cable length The default value defined by the selected cable type represents the typical NVP for that cable type You may enter a different value if necessary To determine the actual value change the NVP until the measured length matches the known length of a cable Use a cable at least...

Page 136: ...required by the selected test limit Extended The tester saves data beyond the frequency range required by the selected test limit No Plot data is not saved which lets you save more results Saved results show only worst margins and worst values for each pair SPECIAL FUNCTIONS Set Reference The tester must be referenced to the smart remote the first time the two units are used together You should al...

Page 137: ... amd138 eps A Tester and smart remote with battery packs B Memory card optional C DTX coaxial adapters with female to female F connector adapters installed D F connector to BNC adapters for testing network coaxial cabling E Two ac adapters with line cords optional 1 2 3 4 TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT ...

Page 138: ...4 for video cabling If a fiber module is installed you may need to press J Change Media to select Coax as the media type D Press Pon the tester or smart remote To stop the test at any time press I The tester shows the Autotest Summary screen when the test is complete see page 5 9 To view results for a specific parameter use A D to highlight the parameter then press H E To save the results press N ...

Page 139: ...totest on Coaxial Cabling 5 7 5 amd139 eps Figure 5 3 Coaxial Network Cabling Test Connections TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK ...

Page 140: ...ons Female to female F connector adapter Tester with coaxial adapter Smart remote with coaxial adapter TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 Connection to coaxial cabling Female to female F connector adapter TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK Wall outlet ...

Page 141: ...totest runs some or all of the tests shown in Figure 5 5 depending on the selected test limit Figure 5 5 Autotest Results for Coaxial Cabling amd141f eps A PASS All parameters are within limits FAIL One or more parameters exceed the limit B E The test passed i The parameter was measured but has no PASS FAIL limit in the selected test limit X The test failed C The worst margin found for the test ...

Page 142: ...Impedance results show the approximate characteristic impedance of the cable at a point approximately 13 ft 4 m from the tester Characteristic impedance is the impedance a cable would have if the cable were infinitely long Good cabling has relatively constant characteristic impedance throughout the cable and connectors Changes in impedance cause signal reflections in cabling In computer networks s...

Page 143: ... conductor This skin effect along with the cabling s inductance and capacitance cause insertion loss to increase with frequency Running Single Tests The tester s single test mode SINGLE TEST on the rotary switch lets you run individual tests for isolating cabling failures and quickly testing repairs You can run some single tests without a remote Table 5 2 shows which tests require a smart remote S...

Page 144: ...ons the tester cannot measure the length of terminated cabling The tester shows End Not Found in this case Impedance Optional Without a smart remote or terminator the tester cannot measure the impedance of cables longer than 984 ft 300 m The tester shows Unknown in this case Propagation delay Not required Because a coaxial cable terminator eliminates signal reflections the tester cannot measure th...

Page 145: ... if the tester is properly maintained and configured To keep your tester in top condition follow these guidelines Keep the tester s software current The latest software is available on the Fluke Networks website See page 14 2 for details on installing updates Set the reference for the twisted pair adapters every 30 days See page 3 1 for details Run the self test before going to the job site See pa...

Page 146: ... Faulty connections Damaged connector Tip The wire map test in Single Test mode features a scanning function that runs the wire map test continuously This function is helpful for locating intermittent wiring faults Wire Map split pair or reversed pair Wires connected to wrong pins at connector or punchdown block Wire Map crossed wires Wires connected to wrong pins at connector or punchdown block M...

Page 147: ...adapter is badly distorted or damaged Wrong test standard selected A test passes but the plot shows that measurements exceed the limit A dB rule may apply See About dB Rules on page 3 13 Resistance gives FAIL FAIL or PASS result Cabling is too long Bad connection due to oxidized or loose contacts Wire gauge is too thin Wrong patch cord type used Tip The resistance test in Single Test mode features...

Page 148: ...VP is set incorrectly Length exceeds the limit but the length test did not fail If the length of the shortest pair does not exceed the limit by 10 then the length test passes even if other pairs exceed the limit This is the 10 rule for length as given in the ANSI TIA standard See the Fluke Networks Knowledge base for details Propagation delay or delay skew gives FAIL result Cable is too long may n...

Page 149: ...airs at connector Poor quality connectors Cable impedance not uniform poor quality cable Mismatches in cable construction such as cable from different manufacturers Water in cable jacket Cable compression tight cable ties pinches kinks etc Poorly matched plug and jack 6A Class EA applications Wrong test standard selected Defective link interface adapter Tip The HDTDR test in Single Test mode featu...

Page 150: ...noise source near cabling under test Use the impulse noise test to check for noise Wrong test standard selected Tip The HDTDX test in Single Test mode features a scanning function that runs the HDTDX test continuously This function can be helpful for locating crosstalk faults caused by cable compression and noise sources See page 6 7 Impulse noise is detected Electrical devices near the cabling ar...

Page 151: ... single test Note You can run the HDTDX analyzer with or without a smart remote Without a remote results on short cables may be unreliable 1 Turn the rotary switch to SINGLE TEST and verify that the test limit and cable type are correct Change them in SETUP if necessary 2 Attach the appropriate interface adapters to the tester and smart remote 3 Turn on the smart remote then connect the tester and...

Page 152: ... or out at the cursor s location D The distance to the end of the cabling E The cursor and the distance to the cursor from the tester In cursor mode use BC to move the cursor F The crosstalk magnitude at the cursor s location G Shows the crosstalk plots by pair Press I to return to the plot of all pairs H Toggles the display between zoom and cursor modes I Sets or clears the measurement marker See...

Page 153: ...DTDX plots Figure 6 2 Interpreting HDTDX Plots amd98f eps A A bad patch cord about 53 m from the tester B Bad section of cable near the smart remote C A spool of cable with poor NEXT performance This cable produced a FAIL result Note the crosstalk along the entire length of the cable 1 Bad patch cord 2 Bad section of cable 3 Bad spool of cable ...

Page 154: ...thout a smart remote the following steps assume you are using a remote 1 Turn the rotary switch to SINGLE TEST and verify that the test limit and cable type are correct Change them in SETUP if necessary 2 Attach the appropriate interface adapters to the tester and smart remote 3 Turn on the smart remote then connect the tester and remote to the cabling 4 Turn the rotary switch to SINGLE TEST selec...

Page 155: ... use BC and AD to zoom in or out at the cursor s location D The distance to the end of the cabling E The cursor and the distance to the cursor from the tester In cursor mode use BC to move the cursor F The reflection percentage at the cursor s location G Shows the reflection plots by pair Press I to return to the plot of all pairs H Toggles the display between zoom and cursor modes I Sets or clear...

Page 156: ...DTX Series CableAnalyzer Technical Reference Handbook 6 12 amd100f eps Figure 6 4 Interpreting HDTDR Plots ...

Page 157: ...pedance Shorts are large decreases in impedance and create large negative reflections C Bad patch cord at about 33 m D A link with a section of cable that has higher impedance 120 Ω than the rest of the cable The bad section starts at about 54 m Note the positive pulse where the impedance increases at the beginning of the bad section and the negative pulse where impedance decreases at the end of t...

Page 158: ...DTX Series CableAnalyzer Technical Reference Handbook 6 14 ...

Page 159: ...tical fibers The modules offer the following features Automated OTDR trace and event analysis help you locate and analyze reflective and loss events on multimode 850 nm and 1300 nm 50 µm and 62 5 µm and singlemode 1310 nm and 1550 nm 9 µm fiber Displays OTDR results in summary format as a table of events or as an OTDR trace PASS FAIL results are based on factory installed limits or limits you spec...

Page 160: ... under test to avoid data loss and to ensure maximum accuracy of test results Turn off the tester before attaching or removing modules Leave the module bay covers in place when a module is not installed Use proper cleaning procedures to clean all fiber connectors before every use Neglecting this step or using improper procedures can cause unreliable test results and may permanently damage the conn...

Page 161: ...fiber connector end face has about a 4 reflection Holding a reflective surface near the connector end face may cause much greater than a 4 reflection which may damage the photodetector in the OTDR Read the instructions for splice machines before using the OTDR to monitor splicing procedures The OTDR can interfere with the light injection detection techniques used by some splicers ...

Page 162: ...stall the module refer to Figure 7 1 and do the following A Turn off the tester B Remove and discard the standard bail C Install the bail included with the DTX Compact OTDR module This new bail has a keyed hole at the bottom where the OTDR module locks onto the bail D Remove the module bay cover or the module currently attached to the tester E Slide the OTDR module onto the tester F Push the locki...

Page 163: ...Using the OTDR Module Installing the OTDR Module 7 5 7 amd157f eps Figure 7 1 Installing the OTDR Module TALK MONITOR SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST A B C D E F 1 4 OFF ...

Page 164: ...e following software supports the DTX Compact OTDR module Software upgrades are available on the Fluke Networks website DTX software version 2 0 or higher LinkWare software version 3 0 or higher See the DTX CableAnalyzer Users Manual for instructions on updating the tester s software Notes Update the software with the OTDR module attached to the tester If your tester s software version is lower th...

Page 165: ... A Some sources produce invisible radiation that can permanently damage your eyes A OTDR ports for singlemode left and multimode right fiber The ports have removable SC connector adapters with protective caps B Visual fault locator VFL output with universal fiber connector and protective cap The connector accepts 2 5 mm ferrules C Laser safety label shown below amd156f eps ...

Page 166: ...ry wipe or fiber cleaning card 2 Touch a new dry swab to the solvent spot on the wipe or card Push the swab into the connector twist it around 3 to 5 times against the end face then remove and dispose of the swab 3 Dry the connector with a dry swab by twisting it around in the connector 3 to 5 times 4 Inspect connectors with a fiber microscope such as the Fluke Networks FiberInspector Video Micros...

Page 167: ...r to access the connector ferrule The OTDR port connection quality screen helps you determine when the OTDR ports needs cleaning See page 7 21 If the port is very dirty wipe the end of the ferrule with an optical grade wipe lightly moistened with fiber optic solvent Dry with a dry wipe Inspect the ports with a fiber microscope at regular intervals amd59f eps Figure 7 4 Cleaning the OTDR Ports Unlo...

Page 168: ...t Auto or Manual In Auto OTDR mode the tester automatically selects certain settings based on the length and overall loss of the cabling This mode is the easiest to use provides the most comprehensive view of the events on the cabling and is the best choice for most applications Manual OTDR mode lets you select the settings to optimize the OTDR for displaying specific events See Using Manual OTDR ...

Page 169: ...void using hybrid patch cords to connect to the cabling under test Connect the launch and receive fibers directly to the cabling under test using a launch fiber with the appropriate connectors This provides the best view of the connectors at the ends of the cabling Hybrid launch fibers with various connector styles are available from Fluke Networks WCaution When testing links with APC angled physi...

Page 170: ...ary switch to SPECIAL FUNCTIONS then select Set Launch Fiber Compensation 3 On the Set Launch Method screen highlight the type of compensation you want to do 4 Clean the tester s OTDR port and launch fiber connectors 5 Connect the fibers to the tester s OTDR port as shown on the screen and in Figures 7 5 7 6 or 7 7 then press P The tester attempts to identify the launch and receive fiber ends base...

Page 171: ...unch compensation settings that have been saved turn the rotary switch to SPECIAL FUNCTIONS select Set Launch Fiber Compensation then press J View Settings amd60f eps Figure 7 5 Launch Only Compensation Connections amd63f eps Figure 7 6 Launch Receive Compensation Connections Launch fiber end Tester with OTDR module Launch fiber Receive fiber Adapter Launch fiber end and receive fiber beginning Te...

Page 172: ...lyzer Technical Reference Handbook 7 14 amd66f eps Figure 7 7 Launch Fiber Receive Compensation Connections Receive fiber Launch fiber end Cabling to be tested Receive fiber beginning Launch fiber Tester with OTDR module ...

Page 173: ...he launch receive event icon shown for Launch Receive compensation B Press J View Trace to see the trace used for the launch compensation settings C If the launch or receive event is misidentified in the event table use AD to select the correct event then use the K and L softkeys to remove or move the launch or receive event assignments See page 7 17 1 2 3 ...

Page 174: ...l Reference Handbook 7 16 amd68f eps Figure 7 9 OTDR Trace with Launch Compensation Enabled End of launch fiber Receive fiber length Beginning of receive fiber Measurement is relative to the end of the launch fiber Launch fiber length ...

Page 175: ...e connections may show as loss events which you can manually select to be the launch receive event For Launch Only compensation highlight the event that is the end of the launch fiber press K Move Launch then press N For Launch Receive compensation highlight the event that is the end of the launch fiber and the beginning of the receive fiber then press K and L as necessary to move or set the launc...

Page 176: ...lightly different from the nominal values selected on the OTDR tab Table 7 1 OTDR Test Settings Setting Description Job settings Before you run a test you will save you may want to set up a storage location and enter Operator Site and Company names See Preparing to Save Tests on page 2 1 OTDR Port Select Multimode or Singlemode to view or edit those settings Test Limit The tester compares the OTDR...

Page 177: ...fined in the fiber types are suitable for most applications Minor differences between the default n and a fiber s actual n usually do not make enough difference in length to fail a fiber Increasing n decreases measured length Backscatter is the backscatter coefficient which indicates the amount of light the fiber reflects back to the OTDR using a 1 ns pulse This value is used to calculate event re...

Page 178: ...the tester is located Based on this setting the tester labels OTDR results as End 1 or End 2 to indicate which end of the cabling you tested Names you assign to the ends of the cabling The names are saved with OTDR results These settings apply only in Manual OTDR mode See Using Manual OTDR Mode on page 7 48 Wavelength Note If you select the dual wavelength setting be sure to select a fiber type an...

Page 179: ... inspect the port and fiber connector for scratches and other damage If a connector on the tester is damaged contact Fluke Networks for service information A poor OTDR connection increases the connector s deadzone which can hide faults near the OTDR port A poor connection also decreases the light available for testing the fiber The weakened test signal causes a noisier trace poor event detection a...

Page 180: ...the progress indicator Figure 7 11 shows an example of this screen The tester updates the trace as measurement averaging proceeds To end a Manual OTDR test and see the results after the next trace update press K Stop Averaging For dual wavelength tests press K twice once for each wavelength This softkey is not available for Auto OTDR tests amd92 bmp Figure 7 11 Progress Screen for Extended Test Ti...

Page 181: ... module B Memory card optional C AC adapter with line cord optional D Launch fiber and receive fibers Match the fiber to be tested Match cable connectors at one end when possible E Fiber cleaning supplies F A microscope for inspecting fiber connectors the FT500 FiberInspector Mini Video Microscope is shown TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 ...

Page 182: ... 7 14 or 7 15 5 Press Pto start the OTDR test 6 To save the results press N then do one of the following To save the results in a new record create an ID or select an unused ID from the Auto Sequence ID list or the List of downloaded IDs then press N IDs that already have an OTDR result from the same end are preceded with a To save the results with existing OTDR results from the other end of the l...

Page 183: ...ng the OTDR Module Running the OTDR Test 7 25 7 amd101f eps Figure 7 13 Connecting the OTDR to Installed Fiber no receive fiber Launch fiber Patch panel Installed fiber Patch panel Tester with OTDR module ...

Page 184: ...amd116f eps Figure 7 14 Connecting the OTDR to Installed Fiber with receive fiber TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 Launch fiber Patch panel Installed fiber Patch panel Receive fiber Tester with OTDR module ...

Page 185: ...Using the OTDR Module Running the OTDR Test 7 27 7 amd122f eps Figure 7 15 Connecting the OTDR to Spooled Cable Pigtail patch cord and mechanical splice Spooled cable Tester with OTDR module ...

Page 186: ...imits FAIL One or more measurements exceed the limit B The limit fiber type wavelengths and fiber end number 1 or 2 used for the test See Table 7 1 on page 7 18 C Measurements taken see Table 7 2 and each measurement s status E The measured value is within the limit A yellow checkmark means there is a warning for the result To see the warning press K View Events then press L View Details i The mea...

Page 187: ...others in the same cable To adjust the length measurements to represent cable jacket length change the index of refraction until the measured length matches the jacket length Overall Loss The end to end loss of the cabling excluding the OTDR connection and the end event The loss does not include launch and receive fibers if launch and receive fiber compensation are enabled Overall Loss does not in...

Page 188: ...View Trace from the OTDR Results or Event Table screen Figure 7 17 describes the readouts and navigational features on the OTDR screen Figure 7 18 describes the features of a typical OTDR trace amd123f eps Figure 7 17 OTDR Trace Screens launch compensation disabled Cursor Mode Zoom Mode with Measurement Cursors ...

Page 189: ... E Press K to change the arrow keys functions from moving the cursor I to zooming The navigational cue above the softkey labels describes the arrow keys current function F Press J to see the Event Table See page 7 35 G Event information appears if the cursor is on an event Otherwise the distance to the cursor is shown H Horizontal scale for the distance along the cabling under test Vertical scale ...

Page 190: ...DTX Series CableAnalyzer Technical Reference Handbook 7 32 amd125f eps Figure 7 18 Typical OTDR Trace Features ...

Page 191: ...ngth measurements C Small event caused by a sharp bend in the fiber D Reflective event caused by the last connection in the cabling The dotted line marks the end of the fiber under test and the beginning of the receive fiber E Reflective event caused by the end of the receive fiber F Overall loss of the cabling Since launch and receive fiber compensation was used the overall loss excludes the loss...

Page 192: ...de 2 Move the cursor to a starting point for a measurement Use BC to move the cursor left or right or AD to move the cursor to the previous or next event 3 Press Hto mark the starting point for the measurement 4 Use BCAD to move the cursor to the ending point for the measurement The following readouts appear on the screen Δ m or Δ ft The distance between the cursor and the mark Δ dB The difference...

Page 193: ...o set the arrow keys to cursor mode 2 Use BC to place the cursor near the feature you want to magnify 3 Press K Change to Zoom to set the arrow keys to zoom mode 4 Use BCAD to zoom the trace vertically and horizontally The Event Table To see a list of the events along the cabling press J View Events from the OTDR Results screen or the OTDR Trace screen Figure 7 19 describes the features of the eve...

Page 194: ...e event s measured value is within the limit A yellow checkmark means there is a warning for the result To see the warning highlight the event then press L View Details i The event has no PASS FAIL limit in the selected test limit The measurement is provided for informational purposes F The event s measured value exceeds the limit C Press J to view the OTDR trace D Press K to view details for the ...

Page 195: ... If the reflection is not caused by a connector inspect the cable for tight bends or damage Use the visual fault locator to verify the fault See Chapter 9 Loss A point where the level of reflected light suddenly decreases Caused by a splice or bend If the loss event is not caused by a splice inspect the cable for tight bends Use a visual fault locator to verify the fault Launch Event The end of th...

Page 196: ...ector does not seem to be the ghost source use a visual fault locator to check for bends or cracks near the ghost source A ghost may have multiple sources The tester identifies only one possible source Look for reflective events with high loss or excessive tailing for other possible sources The event is a duplicate reflection caused by light bouncing back and forth between connectors Caused by a d...

Page 197: ...l faults An apparent gain in the strength of the returned signal Caused by a connection between two fibers with different backscatter coefficients numerical apertures core diameters or mode field diameters A gainer can also occur when measuring loss across a very reflective connection Clean the connection Check the fiber type on either side of the connection Replace fiber if necessary Matching fib...

Page 198: ...ace and event table show that the fiber is very short check for bad connections and broken fibers within a few meters of the tester The tester did not find an end event This can occur in Manual mode when the selected range is too short In Auto mode Out of Range can occur when the cabling is much longer than the module s range Rarely very bad connections along the cabling can cause the OTDR to sele...

Page 199: ...ad connections and broken fibers within a few meters of the tester There is a problem with the module If this continues to occur contact Fluke Networks for assistance The end of the cabling The tester identifies the end of the cabling as the point where the backscatter stops The tester does not measure the loss of End events Note that a very high loss event such as a sharp bend can appear to be th...

Page 200: ...h is within the limit FAIL means the length exceeds the limit Value The length measurement in meters or feet Loss The optical power lost over the event Status PASS means the loss is within the limit FAIL means the loss exceeds the limit Value The loss measurement in dB Limit The maximum loss allowed by the selected test limit Margin The difference between the limit and the measured loss Margin is ...

Page 201: ...ent A smaller more negative reflectance value means less light is reflected back For example a good connection may have a reflectance of 45 dB A dirty connection that reflects more light back to the OTDR may have a reflectance of 20 dB Reflectances that exceed the tester s measurement range are shown as the largest measurable value and are preceded by a greater than symbol Reflectance measurements...

Page 202: ...ent range If the tester is in Manual OTDR mode the selected range is shorter than the fiber under test OTDR Measurement Details cont Detail Description Warnings No fiber attached or fiber too short also see page 7 41 No signal detected also see page 7 41 There may be a problem with the module If the error persists contact Fluke Networks for assistance Unable to find end of fiber due to weak signal...

Page 203: ...onnections on the fiber The launch or receive fiber is too short There is a problem with the launch fiber or patch cord The pulse width is too long The wrong fiber type is connected A multimode fiber is connected but the connection is dirty OTDR Measurement Details cont continued Detail Description Warnings Cannot measure overall loss Fiber detected on other OTDR port There is a fiber connected to...

Page 204: ...ss of the event If you do a bi directional test then upload the results to LinkWare software you can use the bi directional averaging utility in LinkWare to calculate the true loss of gainers Gainers at launch events can occur when the launch fiber does not have the same properties as the fiber you are testing In this situation you can get more reliable results if you do a bi directional test and ...

Page 205: ...nds of the cabling Name End 1 as the end you will test first 2 Set This End to End 1 3 Test all the cabling and save the results from End 1 4 In Setup change This End to End 2 5 Test the cabling from the other end When you save each result use the same fiber ID you used for the results from the first end Note You can do bi directional averaging in LinkWare software See the LinkWare online help for...

Page 206: ...press K View Events on the OTDR Results screen press L View Details then press J OTDR Settings The settings used may be slightly different from the nominal values selected on the OTDR tab Table 7 5 Manual OTDR Settings Setting Description and Selection Guidelines Range The range setting determines the maximum distance shown on the trace Auto The tester selects the range that is nearest to but not ...

Page 207: ...fault for Manual OTDR mode Auto Test Time Adjusts the test parameters for a typical test time of 5 seconds per wavelength This setting speeds up testing but provides less accuracy and increased deadzones Auto Deadzone Adjusts the test parameters to minimize deadzones which reveals more detail in and around reflective events This usually takes longer than testing with Auto or Auto Test Time selecte...

Page 208: ...tester reduces noise on the trace by taking more measurements for averaging or by using wider pulse widths Therefore smaller values may increase test times or deadzones on the trace Auto sets the threshold to the default value of 0 10 dB for multimode and 0 15 dB for singlemode Note Setting a loss threshold does not guarantee that all events at or above the threshold will be found The fiber s char...

Page 209: ... multimode cabling at 850 nm and 1300 nm The DTX SFM2 tests singlemode cabling at 1310 nm and 1550 nm The DTX GFM2 features a VCSEL for testing multimode cabling at 850 nm and 1310 nm when a VCSEL source is required Each module transmits both wavelengths 850 nm and 1300 nm 850 nm and 1310 nm or 1310 nm and 1550 nm Interchangeable connector adapters allow reference and test connections that meet IS...

Page 210: ...t may be active even when a test is not in progress Covering the port reduces the risk of accidental exposure to hazardous radiation Never start a test or activate the OUTPUT port or VFL port without first connecting a fiber to the port you will use Never look directly into the visual fault locator output Momentary exposure to the locator s output will not damage your eyes however direct long term...

Page 211: ...s step or using improper procedures can cause unreliable test results and may permanently damage the connectors See page 8 9 Use only high quality test reference cords that comply with ISO IEC 14763 3 Test the cords at regular intervals See Appendix A Cover all connectors with dust caps when not in use Store extra connector adapters for the fiber module in the canisters provided Do not touch the p...

Page 212: ...o install and remove the fiber modules WCaution To avoid damaging the DXT mainframe or the fiber module and to ensure proper operation Turn off the tester before removing or attaching modules Leave the module bay cover in place when a module is not installed amd34af eps Figure 8 1 Installing and Removing Fiber Modules ...

Page 213: ...r accepts 2 5 mm ferrules The LED below the connector indicates the locator s mode continuous or blinking C Input connector with dust cap Receives optical signals for loss length and power measurements You can change the connector adapter to match the connectors on the fiber under test See Figure 8 3 D SC output connector with dust cap Transmits optical signals for loss and length measurements The...

Page 214: ...nnectors with dust caps when not in use Store the connector adapters for the fiber module in the canisters provided Do not touch the photodiode lens see Figure 8 4 Do not overtighten the adapter or use tools to tighten the adapter To install a connector adapter refer to Figure 8 4 and do the following 1 Locate the slot in the fiber module connector and the key on the adapter ring 2 Holding the ada...

Page 215: ...Certifying Fiber Optic Cabling Installing the Connector Adapter 8 7 8 amd99f eps Figure 8 4 Installing the Connector Adapter ...

Page 216: ...s and the connectors on two SC SC test reference cords 2 Connect the tester and smart remote together as shown in Figure 8 5 3 Turn the rotary switch to SPECIAL FUNCTIONS 4 Use D to highlight Self Test then press H 5 Press Pto start the self test amd118f eps Figure 8 5 Self Test Connections for Fiber Modules ...

Page 217: ...y wipe or fiber cleaning card 2 Touch a new dry swab to the solvent spot on the wipe or card Push the swab into the connector twist it around 3 to 5 times against the end face then remove and dispose of the swab 3 Dry the connector with a dry swab by twisting it around in the connector 3 to 5 times 4 Inspect connectors with a fiber microscope such as the Fluke Networks FiberInspector Video Microsc...

Page 218: ... account for minor variations in source power and connection integrity Also since the reference is the baseline for measurements the losses of the test reference cords and adapters used during referencing are excluded from test results Note Turn on the tester and smart remote and let them sit for 5 minutes before setting the reference Allow additional time if the modules have been stored above or ...

Page 219: ...s to meet TIA reporting requirements for fiber test results Selecting Test Reference Cords The DTX Fiber Modules come with high quality test reference cords To ensure that your measurements are accurate and repeatable use test reference cords provided by Fluke Networks or cords of the same quality See Replacing Fiber Test Reference Cords on page 14 8 WCaution When testing links with APC angled phy...

Page 220: ...er multimode kits are compliant with ANSI TIA 568 C for 50 µm fiber with a 3 mm jacket These mandrels are also available from Fluke Networks Refer to the appropriate standard for mandrel requirements if you follow other standards Table 8 1 shows a partial list of mandrel requirements for TIA standards Figure 8 6 shows how to wrap the fiber around a mandrel Place mandrels on the tester s output fib...

Page 221: ...ssentials for Reliable Fiber Test Results 8 13 8 amd67f eps Figure 8 6 Wrapping a Test Reference Cord Around a Mandrel Wrap 5 times in grooves Place top wrap in groove under retainer Right no bends at retainer Wrong bends at retainer ...

Page 222: ... the appropriate test limit for the job The tester compares the fiber test results to the selected test limit to produce PASS or FAIL results Selecting Custom lets you create a test limit See page 12 5 for details SETUP Fiber Loss Remote End Setup Use Smart Remote mode for testing dual fiber cabling Use Loopback mode for testing test reference cords patch cords and cable spools Use Far End Source ...

Page 223: ...onnections added after referencing The reference and test connections determine which connections are included in results The Test Method refers to the number of end connections included 2 Jumper Loss results include one connection at one end of the link 1 Jumper Loss results include connections at both ends of the link Select this method for connections shown in this manual See About 1 Jumper Con...

Page 224: ...DTX Series CableAnalyzer Technical Reference Handbook 8 16 amd65f eps Figure 8 7 Example of How to Determine the Number of Adapters Setting singlemode example mandrels not used ...

Page 225: ...ngth Setting a reference sets the baseline power level for loss measurements See About Setting the Reference on page 8 10 After you set the reference you can enter the lengths of the test reference cords used The lengths you enter do not affect measurements They are included with saved results to meet TIA reporting requirements Settings for saving tests Cable ID Source Current Folder Result Storag...

Page 226: ...ts you connect to the fiber without disturbing the output port connection WCaution If you disconnect the test reference cords from the tester s or smart remote s output port after setting the reference you must set the reference again to ensure valid measurements If you do not have the correct connector adapters see Appendix C for modified connections that produce 1 Jumper results Autotest in Smar...

Page 227: ...k B Memory card optional C Two ac adapters with line cords optional D Test reference cords Match the fiber to be tested Long ends must have SC connectors For the other connectors match the connectors in the link E Two singlemode adapters of the appropriate type F Two mandrels Recommended when testing multimode fiber with DTX MFM2 modules See page 8 12 G Fiber cleaning supplies H A microscope for i...

Page 228: ...erence connections for the selected test method Figure Figure 8 9 shows connections for the 1 Jumper method The test reference cords in the tester s diagrams are numbered If you want to meet TIA reporting requirements you can enter lengths for each test reference cord number after setting the reference 6 Press P 7 The View Reference screen shows the reference values and the date and time the refer...

Page 229: ...Certifying Fiber Optic Cabling Autotest in Smart Remote Mode 8 21 8 amd145f eps Figure 8 9 Setting the Reference in Smart Remote Mode 1 Jumper Method ...

Page 230: ... reference cords are good You must compare the loss to the limits given here to make sure the cords are good Multimode test reference cord 850 nm 0 11 dB or less 1300 nm 0 10 dB or less The limits are different because fiber has more loss at 850 nm than at 1300 nm Singlemode test reference cord 0 20 dB or less for 1310 nm and 1550 nm 16 If a result is more than the limit shown above use the proced...

Page 231: ...Certifying Fiber Optic Cabling Autotest in Smart Remote Mode 8 23 8 amd175 eps Figure 8 10 Testing the Test Reference Cords in Smart Remote Mode ...

Page 232: ...edia type is set to Fiber Press J Change Media to change it if necessary 23 Press P 24 If Open or Unknown appears as the status try the following Verify that all connections are good Verify that the remote tester is on Try different connections to the cabling until the test continues See Using FindFiber in Smart Remote Mode on page 8 50 for details on FindFiber messages Use the visual fault locato...

Page 233: ...Certifying Fiber Optic Cabling Autotest in Smart Remote Mode 8 25 8 amd146f eps Figure 8 11 Testing a Fiber Link in Smart Remote Mode 1 Jumper Method ...

Page 234: ...use D to highlight a measurement then press H Figure 8 12 describes the Summary screen and loss results screen for an unsaved single directional Autotest in Smart Remote mode For bi directional results in Smart Remote mode see Bi Directional Testing on page 8 48 amd26f eps Figure 8 12 Smart Remote Mode Summary and Loss Result Screens unsaved single directional 1 3 7 4 5 6 8 2 ...

Page 235: ...th Half of the length from the main tester to the remote and back again This equals the length of one fiber if the two fibers are equal length To see the propagation delay select the length result Propagation delay is half the time taken for a signal to travel from the main tester to the remote and back again Propagation delay is measured in nanoseconds ns C The overall result for the loss measure...

Page 236: ...opback Mode Use Loopback mode to test spools of cable and segments of uninstalled cable In this mode the tester measures loss length and propagation delay at two wavelengths in one or both directions Figure 8 13 shows the equipment required for testing fiber in Loopback mode ...

Page 237: ...ory card optional C AC adapter with line cord optional D Test reference cord Match the fiber to be tested Long end must have SC connector For the other connectors match the connectors in the link E Two singlemode adapters of the appropriate type F Mandrel Recommended when testing multimode fiber with DTX MFM2 modules See page 8 12 G Fiber cleaning supplies H A microscope for inspecting fiber conne...

Page 238: ...ference connections for the selected test method Figure 8 14 shows connections for the 1 Jumper method The test reference cords in the tester s diagrams are numbered If you want to meet TIA reporting requirements you can enter lengths for each test reference cord number after setting the reference 6 Press P 7 The View Reference screen shows the reference values and the date and time the reference ...

Page 239: ...Certifying Fiber Optic Cabling Autotest in Loopback Mode 8 31 8 amd147f eps Figure 8 14 Setting the Reference in Loopback Mode 1 Jumper Method ...

Page 240: ...re good You must compare the loss to the limits given here to make sure the cords are good Multimode test reference cord 850 nm 0 11 dB or less 1300 nm 0 10 dB or less The limits are different because fiber has more loss at 850 nm than at 1300 nm Singlemode test reference cord 0 20 dB or less for 1310 nm and 1550 nm 16 If a result is more than the limit shown above use the procedure given in Appen...

Page 241: ...Certifying Fiber Optic Cabling Autotest in Loopback Mode 8 33 8 amd176 eps Figure 8 15 Testing the Test Reference Cords in Loopback Mode ...

Page 242: ... and inspect the connectors on the cabling to be tested 21 Connect the tester to the cabling Figure 8 16 shows connections for the 1 Jumper method 22 Turn the rotary switch to AUTOTEST Verify that the media type is set to Fiber Press J Change Media to change it if necessary 23 Press P 24 To save the results press N then do one of the following To save the results in a new record select or create a...

Page 243: ...Certifying Fiber Optic Cabling Autotest in Loopback Mode 8 35 8 amd148f eps Figure 8 16 Testing a Fiber in Loopback Mode 1 Jumper Method ...

Page 244: ...led results use D to highlight a measurement then press H Figure 8 17 describes the Summary screen and loss results screen for a single directional Autotest in Loopback mode For bi directional results in Loopback mode see Bi Directional Testing on page 6 48 amd27f eps Figure 8 17 Loopback Mode Summary and Loss Result Screens single directional 1 3 7 4 5 6 8 2 ...

Page 245: ...nal to travel between the tester s output and input ports Propagation delay is measured in nanoseconds ns C The overall result for the loss measurement D The measured loss for the fiber Note If loss is negative set the reference again and retest the cabling See page 10 3 for more information on negative loss E The maximum loss allowed by the selected test limit F The difference between the limit a...

Page 246: ...iber module You can also use other sources such as a Fluke Networks SimpliFiber Pro source or LS 1310 1550 laser source Figure 8 18 shows the equipment required for measuring loss in Far End Source mode Note The Autotest in Far End Source mode does not show a PASS FAIL result limit or margin if the selected test limit calculates loss based on fiber length An example of such a limit is the TIA 568C...

Page 247: ...ard optional C Two AC adapters with line cords optional D Test reference cord Match the fiber to be tested SC connector at one end Match the link connectors at the other end E Test reference cord Match the fiber and connectors in the link F Singlemode adapter of the appropriate type G Mandrel Recommended when testing multimode fiber with DTX MFM2 modules See page 8 12 H Fiber cleaning supplies I A...

Page 248: ...or the 1 Jumper method The test reference cords in the tester s diagrams are numbered If you want to meet TIA reporting requirements you can enter lengths for each test reference cord number after setting the reference 6 Hold down the button on the smart remote s fiber module for 3 seconds to turn on the output port at 850 nm DTX MFM2 GFM2 or 1310 nm DTX SFM2 Press again to switch to 1300 nm DTX M...

Page 249: ... 8 WCaution Do not disconnect the test reference cord from the smart remote s output after setting the reference If you do you must set the reference again to ensure valid measurements amd149b eps Figure 8 19 Setting the Reference in Far End Source Mode 1 Jumper Method ...

Page 250: ...s are good You must compare the loss to the limits given here to make sure the cords are good Multimode test reference cord 850 nm 0 11 dB or less 1300 nm 0 10 dB or less The limits are different because fiber has more loss at 850 nm than at 1300 nm Singlemode test reference cord 0 20 dB or less for 1310 nm and 1550 nm 15 If a result is more than the limit shown above use the procedure given in Ap...

Page 251: ...Certifying Fiber Optic Cabling Autotest in Far End Source Mode 8 43 8 amd177 eps Figure 8 20 Testing the Test Reference Cords in Far End Source Mode ...

Page 252: ... as a source hold down the button on the smart remote s fiber module for 3 seconds This turns on the output port at 850 nm DTX MFM2 GFM2 or 1310 nm DTX SFM2 Press again to switch to 1300 nm DTX MFM2 1310 nm DTX GFM2 or 1550 nm DTX SFM2 The LED is red for the shorter wavelength and green for the longer wavelength For other sources verify the output is set to the correct wavelength and is in continu...

Page 253: ...Certifying Fiber Optic Cabling Autotest in Far End Source Mode 8 45 8 amd150f eps Figure 8 21 Testing a Fiber in Far End Source Mode 1 Jumper Method ...

Page 254: ...ary screen appears when the test is finished To see more detailed results use D to highlight a measurement then press H Figure 8 22 describes the Summary screen loss results screen for an Autotest in Far End Source mode amd28f eps Figure 8 22 Far End Source Mode Summary and Results Screens 1 2 3 7 4 5 6 8 ...

Page 255: ...easured loss for the fiber Note If loss is negative set the reference again and retest the cabling See page 10 3 for more information on negative loss E The maximum loss allowed by the selected test limit F The difference between the limit and the measured loss Margin is negative if the loss exceeded the limit G Meter for the loss measurement Values in the red zone exceed the selected test limit H...

Page 256: ...ts Select or create a fiber ID for the fiber then press N again In Smart Remote mode you save two results one for each fiber See the next section Bi Directional Results for Smart Remote Mode Unsaved tests show the results for both fibers as shown at the left of Figure 8 23 Input Fiber and Output Fiber refer to the fibers connected to the main tester s input and output ports at the end of the test ...

Page 257: ...tional Testing 8 49 8 amd127f eps Figure 8 23 Unsaved and Saved Bi Directional Results for Smart Remote Mode First saved result is the input fiber Second saved result is the output fiber Unsaved results show both the input and output fibers ...

Page 258: ...ch panels and quickly check fiber continuity Note The FindFiber function is not available in Far End Source mode Using FindFiber in Smart Remote Mode Use the FindFiber function in Smart Remote mode to help you determine which fibers go to which connectors at a patch panel Figure 8 24 shows the equipment needed for using FindFiber in Smart Remote mode ...

Page 259: ...and smart remote with fiber modules and connector adapters installed Match connector adapters to the connectors in the link B Two ac adapters with line cords optional C Test reference cords Match the fiber to be tested One end of each must have an SC connector For the other connectors match the connectors in the link D Fiber cleaning supplies 1 2 3 4 SC SC ...

Page 260: ... all connectors then make the connections shown in Figure 8 25 4 Turn the rotary switch to MONITOR then select FindFiber 5 Try various connections to the patch panel with the main tester s INPUT fiber until the input fiber s status shows Connected 6 Then try various connections with the main tester s OUTPUT fiber until the output fiber s status shows Connected Figure 8 26 shows the main tester res...

Page 261: ...Certifying Fiber Optic Cabling Finding Connections with FindFiber 8 53 8 amd54f eps Figure 8 25 Using FindFiber in Smart Remote Mode ...

Page 262: ...s amd105f eps The main tester s INPUT fiber path is not complete If the main tester s OUTPUT fiber is connected to the remote s INPUT port the remote s TEST LED blinks The main tester s INPUT fiber path is complete The main tester s OUTPUT fiber path is not complete Both fiber paths are complete On the remote the TEST and PASS LEDs blink alternately ...

Page 263: ...wn in Figure 8 28 4 Turn the rotary switch to MONITOR then select FindFiber 5 Try various connections with the INPUT fiber The status shows Loopback for both fibers when the path is complete Figure 8 27 Equipment for Using FindFiber in Loopback amd55f eps A Tester with fiber module and connector adapter installed Match the connectors on the test reference cord C or use an SC adapter if the fiber u...

Page 264: ...DTX Series CableAnalyzer Technical Reference Handbook 8 56 amd56f eps Figure 8 28 Using FindFiber in Loopback Mode ...

Page 265: ...ut port at 850 nm 1300 nm 1310 nm or 1550 nm This measurement cannot be saved The power meter functions do not compare the power measurement to a limit and do not produce PASS FAIL results Figure 8 29 shows the equipment required for using the power meter in MONITOR mode Figure 8 29 Equipment for Using the Power Meter in MONITOR Mode amd57f eps A Tester with fiber module and connector adapter inst...

Page 266: ...connector 2 Use the test reference cord to connect the source to the tester s input port as shown in Figure 8 30 3 Turn on the source 4 Turn the rotary switch to MONITOR then select Power Meter 5 Press P 6 Select the appropriate wavelength then press P The power meter in MONITOR mode runs continuously until you press I Figure 8 31 describes the power meter screens for SINGLE TEST and MONITOR modes...

Page 267: ...de 3 Clean the tester s input port the test reference cord connectors and the source connector s 4 Use the test reference cord s to connect to the cabling 5 Turn on the source 6 Turn the rotary switch to SINGLE TEST select Power then press P 7 To save the results press N select or create a fiber ID then press Nagain In Smart Remote mode you will save two power meter results one for each fiber In t...

Page 268: ...n at each wavelength The tester takes one measurement for each wavelength B Power readings in decibels relative to 1 mW dBm or microwatts µw C To switch between decibels and microwatts press J A Meter showing the power reading The reading updates continuously until you press I B To switch between dBm and µw press J C To switch wavelengths press L Change λ ...

Page 269: ...opagation delay Power meter measurement Using the Remote Tester with an OptiFiber Tester You can use a DTX Series smart remote with a DTX MFM2 or DTX SFM2 fiber module as the remote for a Fluke Networks OptiFiber Certifying OTDR The DTX remote takes the place of a second OptiFiber tester for measuring loss and length with the OptiFiber loss length option in Smart Remote mode You can buy a smart re...

Page 270: ...DTX Series CableAnalyzer Technical Reference Handbook 8 62 ...

Page 271: ...e polarity of duplex connections and identify connections between patch panels Locate breaks and bad splices These faults scatter the locator s light causing a red glow in the affected area Reveal high loss bends If the locator s light is visible around a bend in a fiber the bend is too sharp Reveal problems in connectors A damaged fiber inside a connector causes a red glow in the connector Optimi...

Page 272: ...e sizes use a test reference cord with the appropriate connector at one end and a SC ST or FC connector at the tester end Figure 9 1 Equipment for Using the Visual Fault Locator amd61f eps A Tester or smart remote with DTX MFM2 DTX SFM2 or DTX GFM2 fiber module or tester with DTX Compact OTDR module B AC adapter with line cord optional C One test reference cord Match fiber and connectors to be tes...

Page 273: ...ress the button near the VFL connector Press again to switch to flashing mode Press again to turn off the locator DTX Compact OTDR module Turn the rotary switch to SINGLE TEST If necessary press JChange Media then set the media type to Fiber OTDR Use the softkeys to start the VFL switch to pulse mode and stop the VFL 4 Look for the red light to locate fibers or faults as shown in Figure 9 2 5 View...

Page 274: ...DTX Series CableAnalyzer Technical Reference Handbook 9 4 amd23f eps Figure 9 2 Using the Visual Fault Locator ...

Page 275: ...table shows results of a survey of 89 contractors and private network owners The results show what percentage of each group commonly found the faults listed Table 10 1 Causes of Failures in Fiber Links Fault Network Owners Contractors Dirty end faces 80 98 Poor polishing 72 88 Broken connectors 40 86 Mislabeling 8 86 Shattered end faces 34 82 Bad splices 36 74 Excessive bends 6 66 ...

Page 276: ...reveal these faults A test reference cord is broken The number of adapters or splices on the Fiber Setup menu is too low for standards that use a calculated loss value The wrong fiber type is selected on the Fiber Setup menu The reference is incorrect Set the reference again using the same test reference cords to be used for testing For multimode fiber the wrong mandrel size was used for testing S...

Page 277: ... test reference cord during referencing The connectors were not properly aligned during referencing The testers were much colder during referencing than during testing Some other problem caused a bad reference value If loss is negative set the reference again and retest the cabling See Chapter 8 A known length of cable measures too long or too short The wrong fiber type is selected on the Fiber Se...

Page 278: ... reference cord or adapter is the wrong type SM or MM or test reference cord has the wrong core size Cabling is cracked or broken Tester is connected to an active CATV fiber The remote tester is in Far End Source mode indicated by a solid red or green LED below the OUTPUT port To exit Far End Source mode press the button on the module until the LED blinks green Power meter measurement is too low P...

Page 279: ...cord launch fiber or fiber segment has the wrong core size backscatter coefficient or mode field diameter If the patch cords and launch fiber are the correct type check the OTDR trace for mismatched cable in the cabling The cabling has a bad fusion or mechanical splice or a sharp bend Use the OTDR trace or event table to locate these faults The launch fibers have PC or UPC connectors but the link ...

Page 280: ...able to locate these faults The launch fibers have PC or UPC connectors but the link being tested has APC connectors The fiber is broken or there is an open connection where the trace shows the fiber end The wrong fiber type is selected on the Cable tab in Setup The index of refraction needs adjustment Change n on the Cable tab in Setup The wrong test limit is selected on the OTDR tab in Setup The...

Page 281: ...or in Manual OTDR mode with smaller resolution settings Use a visual fault locator to precisely locate the fault A crack in the fiber Use a visual fault locator to precisely locate the fault A connection between mismatched fibers different backscatter coefficients core sizes numerical apertures or other parameters The top example could be caused by a larger core on the left connected to a smaller ...

Page 282: ... at a longer wavelength Use a visual fault locator to verify the problem Bad mechanical splices should be reworked Large reflective event with gain a gainer A connector between mismatched fibers different backscatter coefficients core sizes numerical apertures or other parameters This example shows a smaller core size connected to a larger core size Testing from the other end would show a large re...

Page 283: ...A highly reflective connector A UP or UPC connector mated to an APC connector A connector that is not seated properly A poorly seated connector usually shows significant loss as shown in the example A connector with the wrong type of polish can also cause strong reflections that result in ghosts Ghosts caused by hidden events may not be identified as ghosts in the event table Tip On traces with mu...

Page 284: ...DTX Series CableAnalyzer Technical Reference Handbook 10 10 ...

Page 285: ...twork traffic for utilization collisions errors and broadcast packets Blink a port s activity LED Use Fluke Networks LinkRunner Cable ID locators optional to identify link connections at a patch panel twisted pair only Notes Running network tests on a fiber link requires an optional SFP module The DTX NSM module does not support the Talk function Figure 11 1 describes the network module s features...

Page 286: ...st fiber links WCaution Leave the module bay cover in place when a module is not installed Put the dust cap on the SFP port when an optical module is not installed Put the dust cap on the optical module when not connected to a fiber amd38f eps A The link LED is green when the tester is receiving link pulses from the network B 8 pin module jack RJ45 for connecting to twisted pair networks C Port fo...

Page 287: ...Verifying Network Service Installing and Removing the Network Module and Optional SFP Module 11 3 11 amd39f eps Figure 11 2 Installing and Removing the Network and SFP Modules ...

Page 288: ...ng addresses to the tester or you can enter and edit addresses directly on the tester To use LinkWare to enter ping addresses 1 Install the latest version of LinkWare software on your PC 2 Select Utilities DTX Utilities Ping Target List on the LinkWare menu 3 Create an address list then download it to the tester See the LinkWare online help for details To enter or edit ping addresses on the tester...

Page 289: ...s on the second tab that appears after you select Static These addresses are typically available from a network installer administrator technician or from network documentation WCaution In Static mode verify that the DTX Address is not used by another network device Using a duplicate address can cause the other device to malfunction SETUP Network Settings Number of Pings Optional Enter a different...

Page 290: ...do one of the following To save the results in a new record create an ID or select an unused ID from the Auto Sequence ID list or the List of downloaded IDs then press N IDs that already contain network connectivity results are preceded with a To save the results with existing cable test results for the same link enter the ID of the existing results or select the ID from the Auto Sequence ID list ...

Page 291: ...Verifying Network Service Verifying Network Connectivity 11 7 11 amd17f eps Figure 11 3 Network Test Connections ...

Page 292: ...tivity w PoE test and the device appears to support Power over Ethernet The tester requests power from suspected PoE devices shows if the device did not supply power during the test SFP shows for a fiber link C Crossover indicator twisted pair only Green either the cable is straight through or the cable is a crossover and the hub or switch crossed pairs 12 36 MDI on the Negotiation Details screen ...

Page 293: ...only in DHCP mode DNS Server Domain Name System server address In DHCP mode the addresses above show as 0 0 0 0 if the DHCP server does not provide them To see ping results for the above devices highlight a device then press H See Figure 11 6 The checkmarks and Xs indicate how many replies the tester received to its three pings Green Ping replies received for all requests Orange At least one ping ...

Page 294: ...e crossover The tester compensated for a crossover cable by crossing pairs 12 36 MDI The tester did not compensate for a crossover cable Either the cable is straight through or the cable is a crossover and the hub or switch crossed pairs 12 36 D Twisted pair links only Yes indicates a reversed pair on the link such as wires 1 and 2 crossed Run a wire map test on the link to check the wiring E The ...

Page 295: ...nectivity test is complete press L Ping 5 Do one of the following To ping one device highlight the device then press P To ping all devices in the list press JPing All The overall ping result appears on the Network Connectivity screen A scroll bar appears if you pinged multiple devices 6 To see ping details Figure 11 6 highlight a device then press H 7 To save the ping results press N Ping results ...

Page 296: ...e device that was pinged B Number of pings sent and received C The minimum average and maximum times taken for the ping requests to travel to the target address and back to the tester Round Trip Return Time RTT Std Dev is the standard deviation of the RTTs This tells on average how far RTT values are from the average RTT value 1 2 3 ...

Page 297: ...nd check a network s basic health Note Traffic monitor results cannot be saved To monitor network traffic 1 Turn on the tester then connect to the network as shown on page 11 7 2 Turn the rotary switch to MONITOR then run the Network Connectivity test 3 When the test is complete press J Traffic Figure 11 7 describes the traffic monitor screen ...

Page 298: ...ercentage of collision frames as compared to the total number of frames detected in the last 1 second Collisions occur when two devices attempt to transmit at the same time A collision rate averaging over 5 may indicate a problem A full duplex link should show 0 collisions Errors Includes short frames bad FCS frame check sequence late collisions and jabber An error rate above 0 indicates a problem...

Page 299: ...blink function is active 4 Look for a blinking activity LED on the hub or switch Identifying Links twisted pair only The ID Locator function helps you quickly identify link connections at a patch panel This function requires one or more optional Fluke Networks LinkRunner Cable ID locators Note ID locator results cannot be saved To identify a link 1 Connect the tester and ID locator s as shown in F...

Page 300: ...DTX Series CableAnalyzer Technical Reference Handbook 11 16 amd20f eps Figure 11 8 Identifying Links with Optional LinkRunner Cable ID Locators ...

Page 301: ...11 2 lists common causes of symptoms you can detect with the DTX NSM module continued Table 11 2 Diagnosing Low Level Network Problems No ping response limited responses or ping times seem high Note To evaluate ping times you should compare current results with results taken when the network was operating normally Wiring fault on the link Device is turned off For static IP address assignment incor...

Page 302: ...nnected to a NIC network interface card with a straight through cable The reversed result is normal in this situation since a NIC transmits on pair 12 while a switch or hub transmits on 36 Too many stations on the network Broadcast storms Wire pairs 12 and 36 are reversed Note The utilization collision and error percentages given below are only guidelines Acceptable percentages can vary among netw...

Page 303: ...ntermittent wiring faults cabling of the wrong category or poor quality cabling Faulty or marginal network interface card NIC Faulty or misconfigured hardware or software Electrical noise source near cabling Use the impulse noise test to check for noise See page 3 34 Duplex mismatch on the network Bad grounding for network components Faulty or misconfigured hardware or software Collision rate aver...

Page 304: ...DTX Series CableAnalyzer Technical Reference Handbook 11 20 ...

Page 305: ...Creating a Custom Twisted Pair Cable Type You can create up to nine custom twisted pair cable types A custom twisted pair cable type includes the following settings Custom cable name Baseline cable type for default values Nominal velocity of propagation NVP To create a custom twisted pair cable type Turn the rotary switch to SETUP then select Twisted Pair 1 Select Cable Type then select Custom 2 P...

Page 306: ...ting the cable type The tester saves the custom cable type in the Custom list with asterisks before and after the name Creating a Custom Twisted Pair Test Limit You can create up to nine custom twisted pair test limits A custom twisted pair test limit includes the following settings Custom limit name Baseline limit for default settings Maximum length Resistance test enabled or disabled Insertion l...

Page 307: ... test settings 7 From the Custom screen press N when you are done creating the limit The tester saves the custom limit in the Custom list with asterisks before and after the name Creating a Custom Outlet Configuration You can create up to nine custom outlet configurations A custom outlet configuration includes the following settings Custom outlet name Baseline outlet configuration for default sett...

Page 308: ...ex of refraction n To create a custom fiber type for loss length tests 1 Turn the rotary switch to SETUP then select Fiber Loss 2 Select Fiber Type then select Custom 3 Press J Create 4 On the Custom screen select Name then use the text editing screen to enter a name for your custom fiber type Press N when you are done 5 On the Custom screen select Use Default Values From select a fiber group then...

Page 309: ...Limit press J More then select Custom 3 Press J Create 4 On the Custom screen select Name then use the text editing screen to enter a name for your custom fiber limit Press N when you are done 5 On the Custom screen select Use Default Values From select a limit group then select a fiber limit as a baseline for your custom limit 6 The Custom screen shows other settings on multiple tabs for the fibe...

Page 310: ...rom select a fiber group then select a fiber type as a baseline for your custom fiber type 6 To change the index of refraction n for your custom fiber select n for a wavelength then use the editing screen to enter a value for n Press N when you are done Repeat as necessary for other wavelengths 7 To change the backscatter coefficient press C to go to the next tab on the Custom screen select Backsc...

Page 311: ...ustom Limit screen select Use Default Values From select a limit group then select a fiber limit as a baseline for your custom limit 6 On the Custom Limit screen press J Select Fiber then do one of the following Highlight a fiber type for the custom limit To add a fiber to the list press K Add Fiber select a fiber group select a fiber type then highlight the added fiber on the Custom screen 7 With...

Page 312: ...lection value for a single event Overall Loss Enter a maximum value for the loss of all components and fiber in the cabling at each wavelength tested Overall Attenuation Coefficient Enter a maximum value of attenuation per kilometer for the entire length of the cabling at each wavelength tested Segment Attenuation Coefficient Enter a maximum value of attenuation per kilometer for a fiber segment i...

Page 313: ... Configuration 3 If you selected Test Limit press J More 4 Select Custom 5 Use AD to highlight a custom setting then press L Edit 6 Make your changes on the Custom screen then press N Deleting Custom Settings To delete a custom cable fiber type test limit or outlet configuration 1 Turn the rotary switch to SETUP then select Twisted Pair Fiber Loss or Fiber OTDR 2 On the Twisted Pair Fiber Loss or ...

Page 314: ...the selected cable type To enter a specified NVP value 1 If you are in the middle of creating a custom cable type go to step 4 2 Turn the rotary switch to SETUP 3 Select Twisted Pair or Coax 4 Do one of the following 5 To change the NVP for the selected cable type select NVP on the Twisted Pair or Coax menu 6 To change the NVP for a custom twisted pair cable type create a custom cable type or sele...

Page 315: ...be at least 30 m 100 ft long 9 Press P 10 Use AD to change the NVP until the measured length matches the known length of the cable then press N Resetting the NVP to the Default Value You can reset the NVP to the default value defined by the selected cable type by re selecting the cable type in SETUP To reset the NVP to the default value 1 Turn the rotary switch to SETUP then select Twisted Pair or...

Page 316: ...s To transfer custom limits cable types outlet configurations and fiber types between testers use the Modify DTX Test Limits utility in LinkWare software This utility lets you upload custom settings from a tester to a PC then download the settings to other testers See the LinkWare online help for details ...

Page 317: ...a 128 MB removable memory card The DTX 1800 and DTX 1200 testers can use Multi Media Card MMC or Secure Digital memory cards SD WCaution Memory cards may be lost damaged or accidentally formatted resulting in data loss Therefore Fluke Networks recommends saving no more than one day s worth of test results on a memory card Checking the Memory Status To check the memory status turn the rotary switch...

Page 318: ...y status B The bar graph shows the space used in the current memory destination C The number of results saved in the location being displayed D The approximate number of results you can save in the location being displayed The exact number depends on the selected test limit and other test settings as well as the length of the cables you test E DTX 1800 DTX 1200 Press A to switch between the memory...

Page 319: ...he current folder s name in the new location Automatically Saving Results DTX 1800 DTX 1200 DTX LT DTX CLT DTX CLT CertiFiber When Auto Save Results is set to Yes the tester automatically saves Autotests using the next ID available from the Cable ID Source The main Autotest screen shows the next ID If Cable ID Source is set to None or all the IDs have been used Next ID is blank and you enter IDs m...

Page 320: ...e Instrument Settings screen use D to highlight Current Folder then press H 5 Press J Create Folder 6 Use the softkeys BCAD and H to enter a folder name Press N when you are finished Changing Folders To change the current folder 1 Turn the rotary switch to SETUP 2 Use D to highlight Instrument Settings then press H 3 DTX 1800 DTX1200 Verify that the Result Storage Location shows the correct locati...

Page 321: ...r and all the results it contains 1 Turn the rotary switch to SPECIAL FUNCTIONS 2 Use D to highlight View Delete Results then press H 3 If necessary press J Change Folder to find the folder you want to delete 4 Press K Delete 5 Use D to highlight Current Folder then press L Delete ...

Page 322: ...s in ascending order Press L Sort to change the order B Name of the current folder Press J Change Folder to select a different folder C The result s cable ID and the date and time the test was completed D The overall result for the test See page 3 12 for details on PASS and FAIL results E Scroll bar which appears when there is more than one screen of results to view Press AD to scroll up and down ...

Page 323: ... a message if it cannot move or copy a result This occurs in the following cases A result with the same ID and timestamp already exists on the memory card The memory card is full The memory card is not formatted or is damaged Deleting Results To delete results 1 Turn the rotary switch to SPECIAL FUNCTIONS 2 Use D to highlight View Delete Results then press H 3 If necessary press J Change Folder to...

Page 324: ...ding order by the following parameters PASS FAIL result Cable ID Date and time the test was completed To sort results 1 On the View Results screen press L Sort 2 Use D to highlight the field you want to sort by 3 Press J Ascending or L Descending The sorting order applies only to the current folder The current sorting order is indicated at the top of the View Results screen as shown in Figure 13 2...

Page 325: ...emory card or internal memory 5 Press K Format then press L Yes You can also format a memory card or internal memory in SPECIAL FUNCTIONS mode 1 Turn the rotary switch to SPECIAL FUNCTIONS 2 Use D to highlight Memory Status then press H For a DTX 1800 or DTX 1200 with a memory card installed press J to select the memory card or internal memory 3 Press K Format then press L Yes Memory Card Care DTX...

Page 326: ...he USB cable included or the DTX serial cable available from Fluke Networks or Insert the memory card containing results into the PC s memory card reader 4 Start LinkWare software on the PC Click Import on the LinkWare toolbar Select the tester s model from the list or Select Memory card or folder on PC 5 Select the records you want to import then click OK See the LinkWare online help for details ...

Page 327: ... only Fluke Networks authorized service centers WCaution Replacing electrical parts yourself might void the tester s calibration and compromise its accuracy If the calibration is void cable manufacturers might not extend their warranty to the cabling you install Reference Procedure for Link Interface Adapters The reference procedure sets a baseline for various measurements You should perform the r...

Page 328: ... get the update by other means To see the software version installed in your main and remote testers turn the rotary switch to SPECIAL FUNCTIONS then select Version Information You can update your tester with a PC or with another tester that is already updated as described in the following sections WCaution To avoid unexpected loss of power connect the ac adapter to the tester when updating the so...

Page 329: ...ware Update from the LinkWare menu locate and select the dtx DTX update file then click Open 5 The tester reboots then prompts you about updating the smart remote s software Press K OK to update the smart remote s software 6 To verify the update turn the rotary switch to SPECIAL FUNCTIONS then select Version Information amd72f eps Figure 14 1 Twisted Pair Connections for Updating the Software with...

Page 330: ...s updating as shown in Figure 14 3 or 14 4 Note One of the units must be a main tester 2 Turn on both units then press Pon either 3 The testers compare software versions If one has more recent software the main tester prompts you about updating the older software 4 Press K OK to start the update process 5 To verify the update turn the rotary switch to SPECIAL FUNCTIONS then select Version Informat...

Page 331: ...r Connections for Updating the Software with an Updated Tester TEST LOW BATTERY TONE TALK FAIL TEST PASS TALK TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 TALK MONITOR ENTER TEST SAVE SPECIAL FUNCTIONS SETUP AUTO TEST SINGLE TEST EXIT F1 F2 F3 ...

Page 332: ...are 8 To verify the update turn the rotary switch to SPECIAL FUNCTIONS then select Version Information Updating the Limits or Cable Types Database Fluke Networks may release a test limits or cable types database that is not part of a software update To install a new database in your tester use the Modify DTX Test Limits utility in LinkWare software See the LinkWare online help for details Cleaning...

Page 333: ...en Replacing the Battery Pack Replace the lithium ion battery pack when its life becomes noticeably shorter or when it fails to reach full charge The battery is normally good for up to 400 charge discharge cycles Note Dispose of the lithium ion battery pack in accordance with local regulations Replacing the Internal Battery An internal lithium battery maintains the tester s clock when you remove t...

Page 334: ...link will produce large reflections that affect loss measurements Storage Before storing the tester or an extra battery for an extended period charge the battery to between 70 and 90 of full charge Check the battery every 4 months and recharge if necessary Keep a battery attached to the tester during storage Removing the battery for long periods shortens the life of the internal lithium battery th...

Page 335: ... not respond Press and hold M until the tester turns off Then turn the tester on again If the problem persists update the tester s software if a newer version is available System error occurs Press K OK If the tester does not recover press and hold M until the tester turns off If the error recurs update the tester s software If the tester already has the latest software contact Fluke Networks for ...

Page 336: ...d pair test settings Chapter 5 for coaxial test settings Chapter 7 for OTDR test settings or Chapter 8 for fiber loss length test settings Clean the tester s input and output connectors and use a fiber microscope to inspect the endfaces If an endface is damaged contact Fluke Networks for service information There is a problem with the reference Set the reference and test the cabling again See Chap...

Page 337: ...MHz 250 MHz 350 MHz 250 MHz 350 MHz 100 MHz 155 MHz NA Class F Autotest Time Less than 25 s NA NA NA NA NA Cat 6 Autotest Time Cat 5e for the DTX CLT Less than 10 s Less than 10 s Less than 25 s Less than 25 s Less than 25 s NA Supports Fiber Modules Supports OTDR Module Supports DTX NSM Module Supports Coaxial Adapters Includes AC Wire Map Test Supports Custom Limits Includes Autosave Function In...

Page 338: ...00 Hz Shock 1 m drop test with and without module and adapter attached Safety CSA C22 2 No 1010 1 1992 EN 61010 1 1st Edition Amendments 1 2 Pollution degree 2 Altitude3 Operating 4000 m Storage 12000 m EMC EN 61326 1 Laser safety for fiber test module Class I CDRH Complies to EN 60825 2 1 DTX MFM2 GFM2 SFM2 Modules and DTX Compact OTDR Modules 32 F to 104 F 0 o C to 40 o C 2 DTX Compact OTDR Modu...

Page 339: ...lug type and life shielded 8 pin modular RJ45 5000 insertions Tests supported shielded and unshielded cable TIA Cat 3 4 5 5e 6 6A and ISO IEC Class C D E and EA channels Cable Types Tested Shielded and unshielded twisted pair STP FTP SSTP and UTP LAN cabling TIA Category 3 4 5 5e 6 and 6A 100 Ω ISO IEC Class C and D 100 Ω and 120 Ω Note For availability of additional adapters that allow testing to...

Page 340: ...modes or below the DTX CableAnalyzer is compliant with Level III requirements of TIA 568 C 2 1 and IEC 61935 2 For Class F test modes the DTX 1800 is compliant with Level IV requirements as in the draft 2nd edition of IEC 61935 2 Length Note Length specifications do not include the uncertainty of the cable s NVP value Parameter Twisted Pair Cabling WithoutRemote With Remote Range 800 m 2600 ft 150...

Page 341: ...tion 1 ns 1 ns Accuracy 2 ns 2 0 ns to 750 ns 2 ns 4 750 ns to 4000 ns 2 ns 2 Parameter Twisted Pair Cabling Range 0 ns to 100 ns Resolution 1 ns Accuracy 10 ns Parameter Twisted pair cabling Range 0 Ω to 530 Ω Resolution 0 1 Ω Accuracy 1 Ω 1 Overload Recovery Time Less than 10 minutes to rated accuracy following an overvoltage Referencing is required after repeated or prolonged overvoltage ...

Page 342: ...el Adapter Dynamic range 3 dB over test limit PPNEXT and FEXT 65 dB PS NEXT and FEXT 62 dB Amplitude resolution 0 1 dB Frequency range and resolution 1 MHz to 31 25 MHz 125 kHz 31 25 MHz to 100 MHz 250 kHz 100 MHz to 250 MHz 500 kHz 250 MHz to 600 MHz 1 MHz Dynamic Accuracy NEXT 0 75 dB Dynamic Accuracy ACR F 1 0 dB FEXT dynamic accuracy is tested to 0 75 dB DTX 1800 up to 900 MHz DTX 1200 DTX LT ...

Page 343: ...easured to 85 dB maximum 72 4 15 log f 100 measured to 85 dB maximum 80 20 log f 100 measured to 85 dB maximum 75 20 log f 100 measured to 85 dB maximum 60 15 log f 100 measured to 85 dB maximum 40 20 log f 100 measured to 60 dB maximum 37 20 log f 100 measured to 60 dB maximum DTX 1800 up to 900 MHz DTX 1200 DTX LT and DTX ELT up to 350 MHz DTX CLT up to 100 MHz continued Parameter Baseline Field...

Page 344: ... 25 dB maximum 300 MHz to 600 MHz 21 7 dB applicable when IL 3 dB 20 dB applicable when IL 3dB applicable when IL 3 dB 1 MHz to 250 MHz 20 15log f 100 25 dB maximum 250 MHz to 600 MHz 14 dB 1 MHz to 250 MHz 18 15log f 100 25 dB maximum 250 MHz to 600 MHz 12 dB applicable when IL 3dB DTX 1800 up to 900 MHz DTX 1200 DTX LT and DTX ELT up to 350 MHz DTX CLT up to 100 MHz Parameter Baseline Field Test...

Page 345: ...el IV performance The DTX CLT measures up to 100 MHz with accuracy Level IV Worst case accuracy performance parameters are used for asterisk results reporting These are based on computation of the overall measurement accuracy based on the worst case of each parameter at each frequency data point Observed differences between laboratory equipment and DTX CableAnalyzers using calibration verification...

Page 346: ... 14 20 amd110f eps Figure 14 5 Baseline Insertion Loss Measurement Accuracy 0 0 5 1 1 5 2 2 5 0 100 200 300 400 500 600 Frequency in MHz Accuracy in dB Network Analyzer Accuracy Level IV Accuracy Best Case DTX Accuracy Worst Case DTX Accuracy Worse Better ...

Page 347: ...21 14 amd111f eps Figure 14 6 Baseline NEXT Loss Measurement Accuracy Frequency in MHz Accuracy in dB Network Analyzer Accuracy Level IV Accuracy Best Case DTX Accuracy Worst Case DTX Accuracy Worse Better 0 0 5 1 1 5 2 2 5 3 0 100 200 300 400 500 600 ...

Page 348: ... amd112f eps Figure 14 7 Baseline Return Loss Measurement Accuracy Frequency in MHz Accuracy in dB Network Analyzer Accuracy Level IV Accuracy Best Case DTX Accuracy Worst Case DTX Accuracy Worse Better 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 5 0 100 200 300 400 500 600 ...

Page 349: ... 14 23 14 amd113f eps Figure 14 8 Baseline ACR F Measurement Accuracy Frequency in MHz Accuracy in dB Network Analyzer Accuracy Level IV Accuracy Best Case DTX Accuracy Worst Case DTX Accuracy Worse Better 0 1 2 3 4 5 6 7 0 100 200 300 400 500 600 ...

Page 350: ...the cable s impedance at 4 m from the beginning of the link The accuracy of the measurement is relative to a 100 Ω terminating resistance Impulse Noise Adjustable from 10 mV to 500 mV in 10 mV steps Monitors either polarity of noise on pair 3 6 Minimum detectable impulse width 10 ns Parameter Twisted Pair Cable Distance accuracy 1 ft 0 3 m 2 distance Distance resolution 1 ft or 0 1 m Parameter Twi...

Page 351: ... types tested Coaxial video and network cabling Length Range 800 m 2625 ft with or without remote Resolution 0 1 m or 1 ft Accuracy 0 m to 150 m 0 ft to 492 ft 0 3 m 2 150 m to 800 m 492 ft to 2625 ft 0 3 m 4 Propagation delay Range 4000 ns with or without remote Resolution 1 ns Accuracy 0 ns to 750 ns 2 ns 2 750 ns to 4000 ns 2 ns 4 Loop resistance Range 0 Ω to 530 Ω Resolution 0 1 Ω Accuracy 1 Ω...

Page 352: ...z 1 MHz Source load return loss typical 75 Ω reference impedance 1 MHz to 300 MHz 20 12 5 log f 100 20 dB maximum 300 MHz to 900 MHz 14 dB Random noise floor typical 90 dB Range 45 Ω to 110 Ω Resolution 1 Ω Accuracy 5 Ω 5 of 75 Ω Measured Range 350 m 1148 ft with or without remote Resolution 0 1 m or 1 ft Accuracy 0 m to 150 m 0 ft to 492 ft 0 3 m 2 150 m to 350 m 492 ft to 1148 ft 0 3 m 4 Inserti...

Page 353: ...SFP port small form pluggable Indicator Green LED indicates link activity Functions Verifies link connectivity and network service availability checks link utilization and error conditions verifies the presence of PoE Power over Ethernet blinks a hub switch activity LED detects LinkRunner cable ID locators Protocol Complies with IEEE 802 3 Ethernet specifications ...

Page 354: ... µs Dynamic Range2 4 850 nm 24 dB typical with 200 ns pulse 1300 nm 26 dB typical with 1 µs pulse 1310 nm 26 dB typical with 10 µs pulse 1550 nm 24 dB typical with 10 µs pulse 1 Typical fiber attenuation 2 4 dB km at 850 nm 0 7 dB km at 1300 nm for 50 125 µm fiber 2 9 dB km at 850 nm 0 6 dB km at 1300 nm for 62 5 125 µm fiber 0 35 dB km at 1310 nm and 0 20 dB km at 1550 nm for singlemode fiber wit...

Page 355: ...s 5 seconds to 3 minutes 3 cm to 400 cm 3 cm to 400 cm 5 Measured at 1 5 dB below non saturating reflection peak for typical UPC connector 40 dB multimode and 50 dB singlemode using 20 ns pulse width Not including dispersion Refer to the plot to the right 6 Measured at 0 5 dB beyond backscatter for typical UPC connector 40 dB multimode and 50 dB singlemode using 20 ns pulse width not including dis...

Page 356: ...dB 0 01 dB to 1 5 dB settable in 0 01 dB increments 0 01 dB to 1 5 dB settable in 0 01 dB increments Class 1 CDRH Complies to EN 60825 2 Class 1 CDRH Complies to EN 60825 2 7 Applies to the expected backscatter region over the range 0 1 dB to 20 dB below saturation 8 Does not include error due to backscatter coefficient Not applicable for hidden events or saturating reflection peaks Specification ...

Page 357: ...00 40 4 0 4 0 4 1 0 1 0 01 0 001 0 0001 Power measurement uncertainty accuracy 0 25 dB1 Measurement linearity 18 C to 28 C constant temperature 1300 1310 nm and 1550 nm 0 1 dB2 850 nm 0 2 dB3 Re calibration period 1 year Display update rate 1 reading per second 1 Under the following conditions Power level 20 dBm continuous wave At 850 nm 62 5 125 µm fiber with 0 275 NA At 1310 nm and 1550 nm 9 125...

Page 358: ... one direction 15 s Output connector SC Input connector Interchangeable connector adapter SC standard Fiber types tested 50 125 µm to 62 5 125 µm multimode 50 125 µm to 62 5 125 µm multimode 9 125 µm singlemode Source type and wavelengths Multimode LED source 850 nm 30 nm 1300 nm 20 nm VCSEL diode 850 nm 20 nm Fabry Perot laser diode 1310 nm 20 nm Fabry Perot laser diode 1310 nm 20 nm 1550 nm 30 n...

Page 359: ...f propagation time Output power nominal 20 dBm 9 dBm 7 dBm Output power stability over 8 hour period after 5 minute warmup 0 10 dB over 8 hours 5 minute warm up time 0 25 dB over 8 hours 5 minute warm up time 0 25 dB over 8 hours 5 minute warm up time Detector type InGaAs Calibrated wavelengths 850 nm 1310 nm 1550 nm Power measurement range 850 nm 0 dBm to 52 dBm 1300 1310 nm 1550 nm 0 dBm to 60 d...

Page 360: ...m 0 1 dB2 850 nm 0 2 dB3 Dynamic Range for main remote communication and nominal length measurement 12 dB 22 dB 22 dB Re calibration period 1 year Display update rate 1 reading per second 1 Under the following conditions Power level 20 dBm continuous wave At 850 nm 62 5 125 µm fiber with 0 275 NA At 1310 nm and 1550 nm 9 125 µm Ambient temperature 23 o C 5 o C 2 Linearity for 1310 nm and 1550 nm B...

Page 361: ...6 µw 5 dBm peak power 1 0 mw 0 dBm Operating wavelength 650 nm nominal Spectral width RMS 3 nm Output modes Continuous wave and pulsed mode 2 Hz to 3 Hz blink frequency Connector adapter 2 5 mm universal Laser safety Class II CDRH Into SMF 28 singlemode fiber continuous wave and pulse modes SC UPC connector ...

Page 362: ... 108 V ac to 132 V ac input 15 V dc 1 2 A output AC adapter charger international version Switching power supply 90 V ac to 264 V ac input 15 V dc 1 2 A output Memory backup power in main unit Lithium battery Typical life of lithium battery 5 years Electromagnetic Compatibility Emissions EN 61326 1 Class A Immunity EN 61326 1 Input Ratings A DTX Series tester and remote are designed to measure unp...

Page 363: ...te radio frequency energy and if not installed and used in accordance with the manual may cause interference to radio communications It has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 Subpart J of the FCC rules which are designed to provide reasonable protection against such interference when operated in a commercial environment Operation of the...

Page 364: ...shows the pin connections for the DTX serial cable Dimensions without adapter or module 8 5 in x 4 5 in x 2 3 in 21 6 cm x 11 4 cm x 5 8 cm nominal Weight without adapter or module 2 4 lb 1 1 kg nominal Display 3 7 in 9 4 cm diagonal 1 4 VGA passive color transmissive LCD with backlight Table 14 3 DTX RS 232 Cable Pin Connections Tester End IEEE 1394 PC End female DB9 Signal Name Pin Direction Pin...

Page 365: ...t these times At the start of each day When you move your equipment to a different area When you change your equipment to test links that have a different type of connector After you do the test given in this Appendix use the procedure given with the procedures for certifying cabling to monitor the condition of the cords Equipment You Must Have Figure A 1 shows the equipment you must have to test ...

Page 366: ...u will test B Fiber cleaning supplies C A microscope for inspecting fiber connectors the FT500 FiberInspector Mini Video Microscope is shown D A test reference cord that you are sure is good One connector is SC The other connector is the same as on the cords you will test E Singlemode adapter for the connectors on the cords you will test F You must use a mandrel when you test multimode fiber Selec...

Page 367: ...use n to calculate the length of the fiber then they use the length to calculate the limit for loss Thus you must use the correct value of n to get an accurate measurement of loss If you cannot find the correct fiber type you can enter the value of n for your fiber on tab 3 of the setup menus Get the value of n from the cable vendor Remote End Setup Loopback Bi Directional Yes Number of Adapters 1...

Page 368: ...ce Figure A 2 shows examples of what you can see with a fiber microscope Figure A 2 Examples of Fiber Endfaces amd172 eps A A clean endface that has no damage This is the only condition that you can accept for a test reference cord B Dirt that is not on the core does not change the loss measurement but the dirt can move when you connect the fiber C Dirt is on the core Also there are scratches that...

Page 369: ... good For 50 125 µm fiber the reference value must be better than 24 50 dBm for example 23 50 dBm is a better value For 62 5 125 µm fiber the reference value must be better than 20 00 dBm for example 19 50 dBm is a better value For 9 125 µm fiber the reference value must be better than 8 00 dBm for example 7 50 dBm is a better value If the value is not good do the reference procedure again with a ...

Page 370: ... When the first part of the test is completed connect the cord in the opposite direction Figure A 4 C 4 5 Press KOK This test measures the loss of connector shown in Figure A 4 5 Read the Loss Measurements Compare the loss measurement for each direction to these limits Multimode test reference cord 0 10 dB or less Singlemode test reference cord 0 20 dB or less If the connectors show no contaminati...

Page 371: ...How to Test Your Test Reference Cords 5 Read the Loss Measurements A 7 A amd171 eps Figure A 4 Connections for Testing a Test Reference Cord A B C ...

Page 372: ...DTX Series CableAnalyzer Technical Reference Handbook A 8 ...

Page 373: ...s for the three fiber test methods Table B 1 Test Method Names Link End Connections Included in Loss Results This Manual TIA EIA 526 14A multimode TIA EIA 526 7 singlemode IEC 61280 4 1 multimode IEC 61280 4 2 singlemode 1 connection 2 Jumper Method A Method A 2 Method 1 Method A2 2 connections 1 Jumper Method B Method A 1 Method 2 Method A1 None 3 Jumper Method C Method A 3 Method 3 Method A3 ...

Page 374: ...DTX Series CableAnalyzer Technical Reference Handbook B 2 ...

Page 375: ...r singlemode premises fiber respectively Both are 1 Jumper methods The number of fiber connections represented in loss test results depends on the method used for making reference and test connections This appendix describes the three common methods 1 2 and 3 jumper To test links with different connectors at each end visit the Fluke Networks Knowledge Base for suggestions Use the Test Method setti...

Page 376: ...ethod Reference connections for the 1 Jumper method cancel out the effects of the test reference cords as shown in Figure C 1 Loss results for the 1 Jumper method therefore represent both connections plus the fiber in the link Industry standards specify the 1 Jumper method for testing multimode and singlemode premises fiber where connector loss is a significant portion of the total loss Note Other...

Page 377: ...Loss Test Methods for Fiber Cabling 1 Jumper Method C 3 C amd70f eps Figure C 1 1 Jumper Reference and Test Connections singlemode shown ...

Page 378: ...he 2 Jumper method Reference connections for the 2 Jumper method cancel out the effects of the test reference cords and one connection in each fiber path as shown in Figure C 2 The test connections add one connection plus the fiber in the link to each path Loss results for the 2 Jumper method therefore represent only one connection plus the fiber in the link Because the results omit one connection...

Page 379: ...Loss Test Methods for Fiber Cabling 2 Jumper Method C 5 C amd69f eps Figure C 2 2 Jumper Reference and Test Connections singlemode shown ...

Page 380: ...t define the 3 Jumper method Reference connections for the 3 Jumper method cancel out the effects of both test reference cords and two connectors in each fiber path as shown in Figure C 3 The test connections add only the fiber in link to each path Loss results for 3 Jumper method therefore represent only the fiber in the link Because the results omit both connections in the link industry standard...

Page 381: ...Loss Test Methods for Fiber Cabling 3 Jumper Method C 7 C amd71f eps Figure C 3 3 Jumper Method Reference and Test Connections singlemode shown ...

Page 382: ...1 Jumper results but do not have connector adapters that match the connectors on the fiber under test This method lets you connect to the fiber without disturbing the fiber modules output connections after setting the reference Figures C 4 and C 5 show reference and test connections for a fiber with MT RJ connectors On the tester select 1 Jumper as the Test Method when using modified 1 Jumper conn...

Page 383: ...Loss Test Methods for Fiber Cabling Modified 1 Jumper Method C 9 C amd47f eps Figure C 4 Modified 1 Jumper Method Smart Remote Mode Reference Connections ...

Page 384: ...DTX Series CableAnalyzer Technical Reference Handbook C 10 amd48f eps Figure C 5 Modified 1 Jumper Method Smart Remote Mode Test Connections ...

Page 385: ...ule 3 13 4 dB rule 3 13 3 28 606 A 2 25 67 dB rule 3 13 70 dB rule 3 14 A AC wire map 4 1 accessories standard 1 4 ACR See ACR N ACR F 3 28 diagnosing test failures 6 6 specifications 14 16 test 3 28 ACR N 3 24 adapters 1 20 APC connectors launch fiber compensation 7 17 launch receive fibers 7 11 OTDR trace 10 9 test reference cords 8 11 14 8 asterisk in results 3 12 attenuation coefficient 7 42 a...

Page 386: ...xial 5 9 Far End Source mode 8 46 Loopback mode 8 36 OTDR 7 28 Smart Remote mode 8 26 twisted pair 3 9 Smart Remote mode 8 18 twisted pair 3 6 Averaging Time 7 49 B backbone template 2 25 backlight key 1 11 timer 1 28 backscatter coefficient 7 19 battery charging 1 16 clock battery 14 7 replacement 14 7 retraining the battery gauge 14 6 status 1 18 storage 14 8 beeper 1 29 bi directional testing f...

Page 387: ...7 28 twisted pair results 3 10 cleaning display and case 14 6 fiber connectors and adapters 7 8 8 9 fiber loss length module connector 8 9 OTDR module connectors 7 9 cleaning connectors and adapters 8 9 coaxial Autotest 5 6 reference 5 1 results 5 9 test settings 5 3 Collisions 11 14 Company 2 1 compensating for launch receive fibers 7 11 compliance 14 36 connections coaxial 5 7 fiber loss test me...

Page 388: ...imits loss length 12 5 OTDR 12 7 twisted pair 12 2 transferring between testers 12 12 customer support contacting Fluke Networks 1 3 if something seems wrong 14 9 D database for limits and cable types 14 6 Date 1 27 dB rules 3 13 decimal separator 1 27 delay skew specifications 14 15 test 3 19 deleting folders 13 5 results 13 7 DHCP 11 5 diagnosing test failures copper cabling 6 1 fiber cabling 10...

Page 389: ...oss test methods C 1 loss length test Far End Source mode 8 44 Loopback mode 8 34 Smart Remote mode 8 24 OTDR test 7 24 test settings loss length 8 14 OTDR 7 18 Fiber Characteristics 7 19 Fiber Type custom loss length tests 12 4 OTDR tests 12 6 new fiber types database 14 6 setting loss length tests 8 14 OTDR tests 7 18 FindFiber 8 50 Fluke Networks contacting 1 3 Knowledge Base 1 2 folders changi...

Page 390: ...1 horizontal link template 2 25 I i coaxial results 5 9 fiber test result 8 47 frequency based tests dB rules 3 13 length results 3 18 OTDR results 7 28 resistance results 3 17 twisted pair results 3 10 ID Locator 11 15 IDs See cable IDs impedance See characteristic impedance impulse noise 3 34 specifications 14 24 index of refraction 8 17 input ratings 14 36 insertion loss coaxial 5 11 diagnosing...

Page 391: ...de 8 27 specifications 14 14 twisted pair result 3 18 units 1 27 link interface adapters attaching removing 1 20 Autotest counter 1 25 specifications 14 13 LinkWare description 1 34 uploading results 13 10 LinkWare Stats 1 34 List 1 31 Loopback mode Autotest 8 34 equipment 8 29 referencing 8 30 loss diagnosing fiber failures 10 2 fiber test methods C 1 Loopback mode 8 37 negative loss measurement ...

Page 392: ... 10 3 OTDR warning 7 46 network service blinking a port light 11 15 connectivity results 11 8 connectivity test 11 4 diagnosing network problems 11 17 ID locator 11 15 module features 11 2 installation and removal 11 2 software requirements 11 1 monitoring network traffic 11 13 ping addresses 11 4 ping test 11 11 PoE 11 6 11 8 specifications 14 27 test settings 11 4 NEXT diagnosing failures 6 6 HD...

Page 393: ... 8 details screens 7 42 equipment 7 23 grid on plot 7 31 installation 7 4 Manual mode 7 48 module features 7 7 OTDR Port 7 18 OTDR Results screen 7 28 port connection quality 7 21 progress screen 7 22 running the test 7 24 saving results 11 6 settings 7 18 software requirements 7 6 trace 7 30 trace features 7 33 zooming the trace 7 35 Out of Range 7 40 Outlet Configuration custom 12 3 standard 3 3...

Page 394: ... down timer 1 28 Power Line Frequency coaxial setting 5 4 twisted pair setting 3 5 power meter 8 57 connections 8 58 measurement is too high or too low 10 4 MONITOR mode 8 58 results screens 8 60 SINGLE TEST mode 8 59 problems with the tester 14 9 propagation delay coaxial 5 10 Loopback mode 8 37 Smart Remote mode 8 27 specifications 14 15 twisted pair 3 19 propogation delay diagnosing failures 6 ...

Page 395: ...lures 6 5 HDTDR analyzer 6 10 specifications 14 18 test 3 26 RJ11 connector 1 9 RTT 11 12 S safety information fiber loss length module 8 2 general 1 8 maintenance 14 1 OTDR module 7 2 standards 14 37 symbols 1 8 saving results 11 6 Auto Save Results 1 32 13 3 different tests in one record 1 33 network connectivity 11 6 scanning coaxial resistance 5 10 HDTDR 6 10 HDTDX 6 7 twisted pair resistance ...

Page 396: ... 14 2 limits or cable types database 14 6 with a memory card 14 6 with a PC 14 2 with another tester 14 4 version 1 25 sorting results 13 8 specifications DTX Compact OTDR module 14 28 DTX COAX adapter 14 25 DTX NSM module 14 27 DTX XFM2 fiber modules 14 31 environmental and regulatory 14 12 input ratings 14 36 memory 14 37 power 14 36 serial interfaces 14 38 tone generator 14 13 twisted pair test...

Page 397: ...onnectors A 4 replacement 14 8 testing A 1 Testing From 7 20 text editing screen 2 3 Time 1 27 tone generator main tester 1 11 smart remote 1 15 using 3 37 trace OTDR 7 33 traffic monitor 11 13 troubleshooting fiber loss length test failures 10 2 OTDR test failures 10 5 tester 14 9 twisted pair test failures 6 1 tutorials auto increment cable IDs 2 22 auto sequence cable IDs 2 23 testing fiber cab...

Page 398: ...t 14 38 Utilization 11 14 V version 1 25 visual fault locator VFL 9 1 W warnings fiber loss length modules 8 2 general 1 8 OTDR details screens 7 44 OTDR modules 7 2 Wavelength 7 20 Wavelengths 14 28 Weak Signal 7 40 wire map AC wire map 4 1 diagnosing failures 6 2 diagrams 3 4 test 3 15 X X coaxial results 5 9 fiber results 8 27 8 37 network connectivity results 11 9 OTDR results 7 28 twisted pai...

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