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8. Fiber Optic Reference

8.1 Establishing the Reference

Different methods can be used when making a reference measurement with
OMNIFiber. The reference measurement to use depends on how the standard
defines the link, and how the end equipment is interconnected. There are three
basic link definitions and three corresponding reference methods.

Link

Reference

Multimode

Single-mode

Where

Definition

Method

Standard

Standard

Used

link=2 cross

1 jumper method TIA-526-14A

TIA-526-7

TIA-568A,

co

or equivalent

Method B

Method A

ISO 11801

cable plant

100BASE-X,

ATM, Fibre

Channel,

FDDI,

Token Ring

link=1 cross

2 jumper method TIA-526-14A

TIA-526-7

10BASE-X,

c

or equivalent

Method A

Method A.2

TIA 455-171

cable plant

Method B

link=cable

3 jumper method TIA-526-14A

TIA-526-7

plant

or equivalent

Method C

Method A.3

8.2 The Launch/Jumper Cable

The launch/jumper cables are 2 m fiber cables and need to be of good quality and
in excellent condition. Always clean the launch cable before use.

NOTE

The launch cable used to set the reference value should be the same
type of fiber as the cables to be tested and certified, 50/125, 62.5/125 or
singlemode.

CHAPTER 8: OMNIFiber Reference

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Содержание OMNIScanner

Страница 1: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 2000 Black Box Corporation All rights reserved Part Number 2950 4501 04 Rev 01 08 00 ...

Страница 2: ... 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com AUGUST 2000 TS1000A R5 TS1002A TS1003A OMNIScanner PASS STATUS FAIL CIRCUIT GUARD CHARGE O M N I Remote O M N I Scanner 1 ghi 4 prs 7 A a abc 2 jkl 5 tuv 8 qz 0 def 3 mno 6 wxy 9 850 nm 1300 1310 nm RX TX O M N I Fiber 850 nm 1300 1310 nm RX TX O M N I Fiber ...

Страница 3: ......

Страница 4: ...ommercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This digital apparatu...

Страница 5: ...to eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación Todo otro servicio deberá ser referido a personal de servicio calificado 9 El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso La colocaci...

Страница 6: ...r una antena externa deberá ser localizada lejos de las lineas de energia 16 El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación 18 Servicio por personal calificado deberá ser provisto cuando A El cable de poder o ...

Страница 7: ...4 OMNISCANNER TRADEMARKS The trademarks mentioned in this manual are the sole property of their owners ...

Страница 8: ...echnical Support 21 1 16 Product Versions 21 2 Getting Started Twisted Pair Networks 23 2 1 Charging OMNIScanner s Battery 23 2 2 OMNIScanner s Project Screen 23 2 3 Certification of Network Installations 24 2 4 Setting the Reference 25 2 5 Project Selection 26 2 6 Running an Autotest for Twisted Pair Cabling 28 2 6 1 Saving Twisted Pair Autotest Results 29 2 6 2 Viewing Twisted Pair Autotest Resu...

Страница 9: ...6 Configurations 68 4 7 Autotest Run Options 68 4 8 Autotest Save Options 69 4 9 User Options 71 4 10 Adapter Usage 72 4 11 Remote Info 72 4 12 Fiber Adapter Information 73 4 13 Format MMC 74 5 Measurements 75 5 1 Performing Individual Measurements with OMNIScanner 75 5 1 1 Measuring Twisted Pair Cabling 75 5 1 2 Measuring Fiber Optic Cabling 75 5 1 3 Measuring Coaxial Cabling 76 5 2 General Infor...

Страница 10: ...Examples 106 7 Results 109 7 1 Autotest Results 109 7 2 Viewing Autotest Results 111 7 3 Results Stored on a MultiMedia Card 113 8 Fiber Optic Reference Methods 115 8 1 Establishing the Reference 115 8 2 The Launch Jumper Cable 115 8 3 The Reference Methods 116 8 3 1 Method B One Jumper Reference Method 116 8 3 2 Method A Two Jumper Reference Method 117 8 3 3 Method C Three Jumper Reference Method...

Страница 11: ...figurations to OMNIScanner 130 12 4 Remote Controlling OMNIScanner 131 Appendix A Technical Specifications 132 Appendix B Batteries 141 B 1 Batteries 141 B 2 Battery Charging 142 B 3 Battery Tips 142 Appendix C OMNIFiber PASS FAIL Criteria 143 Appendix D Cable Pinouts 145 D 1 Serial Cable DB9 Female to DB9 Male Pinouts 144 D 2 Serial Cable DB9 Female to DB25 Male Pinouts 144 D 3 Serial Cable DB25 ...

Страница 12: ...ical user interface consists of a backlit LCD display quick access menus arrow keys and descriptive menu options that guide you through certifying or troubleshooting cabling systems 1 3 OMNIRemote For test and certification of twisted pair cabling the OMNIScanner requires the OMNIRemote unit at the opposite end of the cabling link under test OMNIScanner communicates with OMNIRemote to obtain statu...

Страница 13: ... define cable and project configurations that can be downloaded to OMNIScanner 1 6 OMNIScanner s Display Scanner Display Function 1 2 or 12 36 The paired numbers in the display indicate wire pairs For example 1 2 indicates the wire pair of pins 1 and 2 12 36 indicates two wire pairs tested the first pair of pins 1 and 2 and the second pair of pins 3 and 6 Pop up lists Pop up lists are available by...

Страница 14: ...rrow and down arrow keys on the keypad to adjust the display contrast In addition to contrast adjustments the screen displays hardware version software version serial number information and the date and time when the unit was last factory calibrated CHAPTER 1 Introduction ON OFF FUNCTION KEYS AUTOTEST BACKLIGHT ESCAPE ARROW KEYS ENTER HELP KEY DB9 SERIAL CONNECTOR ADAPTER CONNECTOR AC ADAPTER MMC ...

Страница 15: ...he editing process and press ENTER again when finished with the editing process Alphanumeric Keys Use the 0 through 9 keys to enter numeric and alphabetic characters in editable fields Alphabetic and special characters are shown above each numbered key on the keypad The 1 key allows entry of the following characters hyphen period and comma The 0 key allows entry of an empty space The alphanumeric ...

Страница 16: ...Save with Graphs Save to MMC Save with Graphs to MMC Copy Project to MMC Copy Results to MMC Copy Circuit ID Erase a letter Clear a field List Circuit IDs Detail Retest Graph Pair Next Page Previous Page Select Set Default Switch to 850 nm Switch to 1300 nm Set Reference Continue Test Use Method A Use Method B Use Method C Switch to Continuous Wave Switch to Modulated 2 kHz Wave Switch to OMNIScan...

Страница 17: ...battery pack is being charged Green OMNIRemote battery is fully flashing charged Red OMNIRemote battery is low flashing 1 9 OMNIRemote Keys ON OFF When turned on OMNIRemote will blink the LEDs λ Lambda When OMNIFiber is attached to OMNIRemote the remote unit can be used as a light source With the OMNIFiber adapter attached press the Lambda key to activate the light source and provide continuous or...

Страница 18: ...Sum ELFEXT ACR and Power Sum ACR Twisted pair measurements not requiring the use of OMNIRemote Length Delay Skew Resistance 1 11 Connecting OMNIScanner and OMNIRemote OMNIScanner and OMNIRemote are used together to perform measurements which allow the scanner to verify installed links or assist in the diagnosis of physical layer network problems To accomplish these measurements OMNIScanner and OMN...

Страница 19: ... Remote test results NOTE Refer to the graphics in Chapter 2 Getting Started Typical Test Configurations for instructions on connecting OMNIScanner and OMNIRemote for basic link and full channel tests Indicates OMNI Scanner test results Indicates OMNI Remote test results Toggles the display from Scanner to Remote test results ...

Страница 20: ...ibers 1 13 Attaching the OMNIScanner Fiber Adapters NOTE Both OMNIFiber adapters have dust caps to protect the ST connectors from dirt Keep the ST connectors covered when the Fiber Adapters are not in use This helps to ensure that contaminants from handling fiber do not affect test measurements NOTE Both OMNIFiber adapters have 160 pin connector covers Keep the 160 pin connectors covered when the ...

Страница 21: ... s 160 pin connector by snapping the cover back in place 1 14 Editing with OMNIScanner2 OMNIScanner includes sophisticated easy to use editing methods to accommodate a variety of user definable items Different fields have different editing procedures Please follow the described procedures to make editing with the OMNIScanner effortless NOTE All editable fields can be easily recognized by their dot...

Страница 22: ...rsor to the appropriate item or value and press ENTER to select it as the new default 1 14 2 EDITING NUMERIC FIELDS WITH THE SPIN CONTROL 1 Use the up arrow or down arrow key to move the cursor to the field to be edited The entire field will be highlighted in black 2 Press ENTER Notice that the field is now highlighted in white and the main screen in the background turns gray to indicate that the ...

Страница 23: ... be highlighted in black 2 Press ENTER Notice that the field is now highlighted in white and the main screen in the background turns gray to indicate that the edit mode has been launched The first letter in the field is highlighted in black 3 Press any numerical key on your keypad to display a small drop down list containing letters to choose from Example Press 8 key to choose t u and v or the num...

Страница 24: ...ield and exit the edit mode 1 15 Technical Support If you have technical questions call Black Box Technical Support at 724 746 5500 NOTE Before calling Technical Support please have your serial number and the hardware and software version numbers available 1 16 Product Versions To display the software version number the hardware version number the serial number and the factory calibration data for...

Страница 25: ...ctory calibration data The serial number can also be found on the back of each unit To display information for OMNIFiber attach the OMNIFiber adapters to OMNIScanner and OMNIRemote connect the units with the supplied fiber launch cable and press the Setup function key Select Fiber Into to open the Fiber Info screen which contains the serial numbers and the date the adapters were last factory calib...

Страница 26: ...tions and the cable types are all selectable from the OMNIScanner Project screen Press the ON OFF key to power the unit on and display the project screen with its three user definable items Project Autotest and Cable The first item Project name should be highlighted Use the down arrow to move the highlight to the Autotest or Cable field Press ENTER when a filed is highlighted to change the current...

Страница 27: ...asy and fast operation The typical order of operations performed when certifying a cable installation is as follows Preparation Before initial certification do the following 1 Run a self test by setting the reference for OMNIScanner and OmniRemote periodically for example weekly 2 Select the appropriate Project Autotest specification and Cable type Certification Do the following for each installed...

Страница 28: ...Edit Autotest Information The following sections provide detail on the certification process 2 4 Setting the Reference A reference must be set when OMNIScanner2 and OMNIRemote are used as a set for the first time After the initial reference setting the process should be repeated periodically to insure unit verification OMNIScanner stores reference data for up to 5 remote units by serial number Mod...

Страница 29: ...corded OMNIScanner displays the REMOTE INFO screen 7 Press ESC to return to OMNIScanner s SETUP screen 2 5 Project Selection A project name must be selected for test result management Autotests and Cables were previously assigned to a specific project through the use of the OMNIScanner Configuration utility See Chapter 9 Uploading and Printing for further information about OMNIScanner Configuratio...

Страница 30: ...row or down arrow to highlight Autotest and press ENTER 4 Select the appropriate Autotest from the pop up list and press ENTER 5 Use the up arrow or down arrow to highlight Cable and press ENTER 6 Select the cable type to be tested from the pop up list and press ENTER ...

Страница 31: ...tup to select the appropriate item See Chapter 3 Setup Autotest Cable or Project for further information NOTE 2 6 Running an Autotest for Twisted Pair Cabling 1 Connect OMNIScanner to the near end of the twisted pair cable you are testing and connect OMNIRemote to the far end See the Typical Test Configurations for Twisted Pair Cabling section in this chapter for more information 2 Press the key W...

Страница 32: ... tests have been performed the overall test Result is displayed as PASS or FAIL NOTE The list of tests varies depending on the kind of Autotest that was performed An Autotest will PASS if all the selected tests meet the specified criteria An Autotest will FAIL if one or more selected tests failed 2 6 1 SAVING TWISTED PAIR AUTOTEST RESULTS 1 Press Save from the Autotest screen to open the SAVE AUTO...

Страница 33: ...r s edit feature highlight the field and press ENTER to initiate the editing mode See Section 1 9 for more information 5 To change the Name using the list function press List The CIRCUIT ID screen opens and displays all Circuit IDs available for the project Use the left arrow or right arrow to quickly scroll through the pages Use the up arrow or down arrow to highlight a Circuit ID and press ENTER...

Страница 34: ...l memory Press Save with Graphs to save the test results with their graphs to OMNIScanner s internal memory NOTE Saving graphs will reduce the number of Autotests that can be stored Press Save to MMC to save the test results to the MultiMedia Card OMNIScanner 2 only Press Save with Graphs to MMC to save the test results with their graphs to the MultiMedia Card OMNIScanner 2 only NOTE Saving graphs...

Страница 35: ...sts varies depending on the kind of Autotest that was performed 1 To view detailed results of all the tests that were performed during Autotest highlight a specific test in the Autotest screen using the up arrow or down arrow key and press ENTER 2 Use the left arrow or right arrow to quickly browse through all other detailed test result screens and their results All Tests that can run during Autot...

Страница 36: ...33 CHAPTER 2 Getting Started Twisted Pair Networks Press to view ...

Страница 37: ...est After using the retest feature the Autotest must be repeated before results can be saved The NEXT Attenuation Return Loss Power Sum NEXT ELFEXT ACR Power Sum ELFEXT and Power Sum ACR test result screens have a graph feature to display the graph associated with the test To avoid misinterpretation the limit line is shown in a gray color while the actual measurement is represented in black Press ...

Страница 38: ...ill have small icons in the upper right corner of the titlebar to indicate whether the information is pertinent for OMNIScanner or OMNIRemote To toggle between the two screens press to open the screen that contains the information for OMNIScanner Press to display the information for OMNIRemote ...

Страница 39: ...c shows the connection of OMNIScanner to a Modular 8 Jack in the wiring closet and OMNIRemote to a Modular 8 jack in the work area Use the supplied Link Adapters at both ends of the link to attach OMNIScanner and OMNIRemote to the Modular 8 jacks 2 7 2 BASIC LINK WITH 110 BLOCK AND MODULAR 8 JACK The graphic shows the connection of OMNIScanner to an IDC 110 block in the wiring closet and OMNIRemot...

Страница 40: ... Down block At the other end of the link use the 110 A or B Link Adapter to attach OMNIRemote to the Modular 8 jack 2 7 3 FULL CHANNEL WITH MODULAR 8 JACKS A Full Channel consists of all the link elements from the hub to the workstation For cables terminated with a Modular 8 plug use the supplied modular 8 Channel Adapter to attach OMNIScanner and OMNIRemote to channel patch cords Modular 8 Channe...

Страница 41: ...Permanent Link Autotests connect the supplied Link adapters in the same manner as the Basic Link During permanent link Autotests the effects of the link adapters are removed from the measurements The Permanent Link method measures the link only from jack to jack including the Modular 8 plug that plugs into the Jack Modular 8 RJ 45 Link Adapter Modular 8 Jack ...

Страница 42: ...from the Project screen Press the ON OFF key to power the unit on and display the project screen with its three user definable items Project Autotest and Cable The first item Project name will be highlighted Use the down arrow to move the highlight to the Autotest currently selected Use the down arrow to highlight the currently selected Cable type OMNIScanner will auto sense the Adapter Battery an...

Страница 43: ... operations performed when certifying a cable installation is as follows PREPARATION Prior to initial certification perform the following 1 Attach an OMNIFiber adapter to OMNIScanner This will be referred to as the OMNIFiber Main 2 Attach an OMNIFiber adapter to OMNIRemote This will be referred to as the OMNIFiber Remote 3 Establish a reference power by setting the reference See Chapter 8 Fiber Op...

Страница 44: ...ink proprietary format Print test reports Export results in CSV format Setup Projects Edit Autotest Information 3 4 Setting the Reference for Fiber Optic Cabling NOTE To ensure consistent accurate measurements the reference value must be set at least once each calendar day that the Fiber Adapters are used The reference value expires each day at midnight 1 To set the reference value connect the OMN...

Страница 45: ...r will store reference data for up to 5 OMNIFiber pairs See Chapter 8 Fiber Optic Reference Methods for further information NOTE Once the reference value has been set ensure that both launch cables remain attached to the fiber adapters When setting the Reference using Loopback or Method B ensure that the TX transmit connections are not disturbed ...

Страница 46: ...ed for test result management Autotests and Cables were previously assigned to a specific project through the use of the OMNIScanner Configuration software See Chapter 9 Uploading and Printing for further information about OMNIScanner Configuration The Project feature is very useful for grouping test results and eases uploading and sorting of Autotests stored in the scanner 1 Use the up arrow or d...

Страница 47: ...y change to reflect that OMNIFiber is currently attached OMNIScanner auto senses the adapter If the adapter is changed OMNIScanner will automatically adjust the content in the fields Autotest and Cable to reflect the new setup Every Project has certain Autotests and cables assigned already These associated lists will appear in the pop up lists for each item If the Autotest or Cable you want to use...

Страница 48: ... connect your fibers as follows METHOD A To run an Autotest when Method A was used to set the Reference proceed as follows 1 Do not disconnect the launch cables from the OMNIFiber Adapters 2 Remove the connector adapters sleeves that connect the two launch cables 3 Connect the OMNIFiber Main to one end of the duplex link under test and the OMNIFiber Remote to the opposite end RX TX 850 nm 1300 131...

Страница 49: ...o the RX ports of the OMNIFiber Adapters 3 Connect the white connectors to the RX ports on the OMNIScanner fiber adapters 4 Connect the OMNIFiber Main to one end of the duplex link under test and the OMNIFiber Remote to the opposite end 5 Press METHOD C To run an Autotest when Method C was used to set the Reference proceed as follows RX TX 850 nm 1300 1310 nm RX TX 850 nm 1300 1310 nm 2 m Launch C...

Страница 50: ...ING OMNIFIBER MAIN This configuration is used to test single fibers reels and short cables when both ends of the fiber under test are accessible from the same location Note The loopback Autotest assumes that reference Method A 2 jumper method was used to make the reference measurement To run a Loopback Autotest proceed as follows 1 Do not disconnect the black launch cable which is attached to the ...

Страница 51: ... is calculated based on the wavelength the length of the cable and the number of connectors and splices OMNIScanner will automatically display the CONNECTIONS screen if you are running an equation based Autotest TIA 568A ISO 11801 or 1000BASE F 1 With the Connections field highlighted press ENTER Use the up arrow or down arrow key to adjust the number of connections in your link To determine the t...

Страница 52: ... splices on one fiber OMNIScanner will assume that both fibers of a duplex link have the same amount of splices 3 After editing the fields press to run the Autotest OMNIScanner starts the Autotest after the number of connections and splices has been entered NOTE If you are running a Fiber Test Options for further information 4 Swap the Launch Cable s connectors as indicated in the graphic Do not d...

Страница 53: ...ight below the arrows PASS or FAIL The name of the Autotest is displayed at the top of the screen followed by the name of the fiber When a bidirectional test was performed an icon for OMNIScanner or OMNIRemote will appear next to the fiber s name Press or to view results for the fibers with light transmission in the opposite direction The arrows flip vertically to indicate that there are two resul...

Страница 54: ...he worst case margin for all wavelengths on each fiber in both directions A positive margin indicates that the measured loss was less than the PASS FAIL value a negative margin indicates a fail and shows how much the measurement exceeded the maximum allowable PASS FAIL amount The number of Connections and Splices is displayed at the bottom of the screen if applicable To store the Autotest Result f...

Страница 55: ...setup feature allows you to define edit and preset many items They are conveniently organized and can easily be accessed by pressing the assigned number on your alphanumeric keypad or by highlighting the item and then pressing ENTER From the Project screen press the SETUP screen ...

Страница 56: ... to communicate with OMNIRemote While the reference data is being established a gauge indicates the progress OMNIScanner notifies you when the process has been completed The Remote Info screen will be displayed NOTE Set Reference is only needed to periodically verify and establish the signal reference for attenuation The function does not affect any other measurements Press ESC to return to the Se...

Страница 57: ...ss measurement can be calculated With the OMNIFiber adapters attached to OMNIScanner2 and OMNIRemote and the launch cable s in place select Set Reference to display the Select Method screen NOTE The Select Method screen will not be displayed if a fiber is attached to the TX and RX ports of the same OMNIFiber adapter Loopback To select a Reference Method A B or C press the appropriate function key ...

Страница 58: ...s has been completed The Fiber Info screen will be displayed Press ESC to return to the Setup screen 4 3 Autotests Select Autotests to display the Autotests screen It contains a list of standard Autotest specifications supported by the OMNIScanner2 Standards are grouped by TIA ISO VENDOR MICROTEST IEEE ATM and AS NZ CHAPTER 4 Setup ...

Страница 59: ...items and press ENTER to display the list of Autotests contained in that folder Use the up arrow or down arrow key to highlight a specific Autotest Copper tests are marked with a twisted pair icon Fiber optic tests are marked with a fiber icon Press Set Default to select it as the Autotest to run Press Detail to review the Autotest s limits ...

Страница 60: ...screen titles show the standard being used to set the limits for example Cat 6 Link The first page displays the Configuration of the Autotest Basic Link Channel or Permanent Link Wiremap Length Delay and Skew limits are also displayed The Wiremap numbers show the pairs that are being tested The second page shows limits for Resistance NEXT Attenuation and Return Loss CHAPTER 4 Setup ...

Страница 61: ...t Tests that are performed during an Autotest are clearly marked Tests that are not required when performing an Autotest have no icon Disabled tests may or may not show limits in the description field An precedes the test name for tests being performed during the Autotest but the results are not used to determine PASS or FAIL Defined test limits will be displayed right below the test name If a tes...

Страница 62: ...t will be performed for information purposes only The results are not used to determine PASS or FAIL The View Autotest Detail screen displays the current scanner configuration for multimode fibers Use the function key to view the limits for single mode fibers When viewing limits for equation based Autotests like TIA 568A ISO 11801 and 100BASE F the Loss per km kilometer will be displayed ii CHAPTE...

Страница 63: ...Select Cables to display the Cables screen It contains a list of cable manufacturers If there are cables in a folder the manufacturer folder will appear full otherwise it will be empty Highlight a cable manufacturer that is marked by a folder containing items and press ENTER to display the list of cables in that manufacturer s folder ...

Страница 64: ...choose it as the cable to be tested Selecting the correct cable type will ensure accurate measurements If you cannot find or do not know the name of your cable manufacturer simply select a cable from the Category folder or create a new cable see below Press Delete to permanently remove a custom cable NOTE Default cables cannot be removed With a twisted pair or a coax cable highlighted press Edit t...

Страница 65: ... press New to create a new cable based on the NVP and Impedance values of the highlighted default cable Name NVP and Impedance are definable NOTE A new or edited cable will be saved in the Custom Cables folder For an accurate Length test the NVP Nominal Velocity of Propagation must be set correctly The value is usually specified by the cable vendor and OMNIScanner has a large library of cables wit...

Страница 66: ...the field and press ENTER Use the up arrow or down arrow key to select the appropriate Impedance in Ω ohms from the predefined list To setup whether or not the cable is shielded use the down arrow key to highlight Shield and press ENTER Use the up arrow or down arrow key to make the appropriate selection If Yes is selected the wiring for the shield will be measured during the Autotest and used to ...

Страница 67: ...ble into the Custom Cable folder Press ESC to return to the SETUP screen 4 5 Projects Select Projects to display the Projects screen It contains a list of all projects that are currently stored in OMNIScanner Predefined default projects are TIA ISO VENDOR MICROTEST IEEE ATM AS NZ ANSI OMNIScanner s project feature allows you to organize test specifications cable types and test results into Project...

Страница 68: ...ithout stored Autotests can be deleted Press Edit to edit an existing project name and its Circuit ID The project name will appear in the Name field The first and last Circuit ID fields contain a default circuit ID See Editing a Circuit ID for further information Press List to display the Circuit ID screen It contains a scrollable list of all Circuit IDs created for the project CHAPTER 4 Setup ...

Страница 69: ... A CIRCUIT ID To edit or create a Circuit ID highlight an item in the PROJECTS screen and press New or Edit Use the down arrow to highlight the First Circuit ID field and press ENTER The Circuit ID field consists of 16 characters which allows the sophisticated construction of Circuit IDs Each character can be incremented The example shows how to quickly create an incremental Circuit ID Enter MT F0...

Страница 70: ...ust created MT F01 PP01 P01 1st Circuit ID to be used MT F01 PP01 P02 2nd Circuit ID to be used MT F01 PP01 P03 3rd Circuit ID to be used MT F01 PP02 P01 49th Circuit ID to be used MT F02 PP01 P01 97th Circuit ID to be used MT F12 PP02 P48 last Circuit ID to be used Press Save to save the Circuit ID and return to the Projects screen NOTE To quickly edit the Last Circuit ID press Copy once you have...

Страница 71: ...NSI OMNIScanner2 only Use the up arrow or down arrow key to highlight a specific Configuration Press Set Default to select it as the Configuration to be used and to return to the SETUP screen While the selected Configuration is being loaded onto OMNIScanner2 a gauge indicates the progress Do not remove the MultiMedia Card from the MultiMedia Card reader during the data transfer 4 7 Autotest Run Op...

Страница 72: ...esults in dB will always be reported for the worst value regardless of what is selected in the Report listbox Use the down arrow to highlight the Fiber Test Options checkbox You will be able to define the way fiber optic Autotests are performed Press if you want OMNIFiber to test the fiber link in both directions The Test in Both Directions box will be checked Press Save to save your changes and r...

Страница 73: ... software program See Chapter 9 Uploading and Printing for more information In the Save Graph Options section you will be able to define which of the graphs will be saved If a checkbox is checked OMNIScanner will store an Autotest with the graph information for that particular test NOTE Saving graphs reduces the number of Autotests that can be stored Depending on the performed Autotest NEXT PSNEXT...

Страница 74: ...use the right arrow key to highlight the portions you want to change Press ENTER to edit the highlighted segment Use the up arrow and down arrow keys to change the displayed values in increments of 1 Press ENTER when done To edit the Time use the right arrow key to highlight the portions you want to change Press ENTER to edit the highlighted segment Use the up arrow and down arrow keys to change t...

Страница 75: ...The number of Autotests that have been performed with the Adapter that is currently attached to OMNI and Remote is displayed below each adapter s name Adapter ID String Press ESC to return to the SETUP screen 4 11 Remote Info Select Remote Info to display the REMOTE INFO screen The date the Reference value for OMNIScanner and OMNIRemote was last set is shown at the top of the screen The Hardware a...

Страница 76: ... repairs or refurbishments done or when calling for Technical Support NOTE OMNIScanner and OMNIRemote should be calibrated annually with specialized equipment Contact Technical Support for information on calibration and service requirements 4 12 Fiber Adapter Information Select Fiber Info to display the FIBER INFO screen The serial numbers and the date the adapters were last factory calibrated are...

Страница 77: ...MC OMNIScanner2 only When using the MultiMediaCard for the first time it may require formatting Insert the MMC into OMNIScanner2 s MMC slot Select Format MMC to open the FORMAT MMC screen Formatting will start immediately a gauge will indicate the progress The formatting time depends on the capacity of the MultiMediaCard 8 MB will require 2 minutes ...

Страница 78: ...lows you to run various individual tests The tests are conveniently grouped into two screens and can be accessed separately with the alphanumeric keypad Press the Measurements function key to display the MEASUREMENTS screen Press the Page Down function key to scroll to the second screen containing MEASUREMENTS Press the Page Up function key to return to the first screen containing MEASUREMENTS 5 1...

Страница 79: ...ter attached press the Measurements function key to display the MEASUREMENTS screen for coaxial cabling Press ENTER or direct dial the test by pressing its associated number on the OMNIScanner keypad 5 2 General Information Most test result screens have a retest feature for diagnostic purposes Press Retest to run continuous tests for the same cable Press Retest once more to stop the continuous mea...

Страница 80: ...nformation for OMNIRemote NOTE The PASS FAIL criteria are based on the Autotest currently selected in the Project screen Several measurements will display certain results in a graph format When a graph can be displayed the Graph function key is available Press Graph to display test results for the highlighted pair or pair combination Use the up arrow or down arrow key to magnify the area of the gr...

Страница 81: ...bling for proper wiring Your cabling configuration is checked for shield continuity opens shorts crossed pairs split pairs and reversed pairs For each pair Wiremap displays the length The screen displays a graphical representation of the wiring in your cable where the near end wiring is shown on the left side and the far end wiring on the right side of the screen 1X 2X 10X 4X ...

Страница 82: ...WIREMAP screen 5 3 2 LENGTH DELAY The Length Delay function measures a cable s length propagation delay and skew OMNIScanner will determine whether the cable is open or shorted The accuracy of the NVP Nominal Velocity of Propagation setting determines the exactness of length measurements The NVP specified by cable manufacturers is used for all the cables in OMNIScanner s library When creating or e...

Страница 83: ... PASS or FAIL indicator The length result can be displayed in meters or feet see Chapter 4 Setup User Options Delay is displayed in nS nanoseconds The Skew value and the Skew limit are displayed right below the pairs Press ESC to exit the LENGTH DELAY screen 5 3 3 NEXT The NEXT Near End Crosstalk function measures the electromagnetic coupling that occurs between pairs at the near end OMNIScanner a...

Страница 84: ...tions is shown at the top of the screen The pair combinations are displayed in the column on the left side followed by the measured NEXT value margin limit and frequency The result for each pair combination is tagged with a PASS or FAIL indicator Press or to toggle between the NEXT results for OMNIScanner and OMNIRemote Press Graph to display the NEXT graph for the highlighted pair combination NEX...

Страница 85: ... end of the cable OMNIScanner measures the signal at the other end of the cable to determine cable loss In the ATTENUATION screen the worst case margin for all pairs is shown at the top of the screen The pairs are displayed in the column on the left side followed by the Attenuation in decibels dB the Attenuation margin limit values and the frequency The result for each pair is tagged with a PASS o...

Страница 86: ...th Return Loss measures the difference between the transmitted signal delivered to the cable and the reflected signal at the input port of the cable The reflected signal is the result of impedance mismatches in the link under test In the RETURN LOSS screen the worst case margin for all near end and far pairs is shown at the top of the screen The pairs are displayed in the column on the left side f...

Страница 87: ... ESC to exit the RETURN LOSS screen 5 3 6 ELFEXT ELFEXT Equal Level Far End Cross Talk measures the electromagnetic coupling at the far end and normalizes the result to account for the cable s attenuation ELFEXT is reported in dB and results are computed for twelve pair combinations at the OMNIScanner and OMNIRemote end of the cabling In the ELFEXT screen the worst case margin for all near and far...

Страница 88: ...ghlighted pair combination ELFEXT is displayed for the frequency indicated by the cursor position Press Pairs to view ELFEXT graphs for other pair combinations Press ESC to exit the ELFEXT screen 5 3 7 ACR BANDWIDTH Attenuation to Crosstalk Ratio ACR is an indication of how much larger the received signal is compared to the Near End Crosstalk NEXT on the same pair ACR is calculated from the measur...

Страница 89: ...e top of the screen The pair combinations are located in the column on the left side followed by the measured ACR the ACR margin limit and the frequency The result for each pair combination is tagged with a PASS or FAIL indicator Press or to toggle between ACR results for OMNIScanner and OMNIRemote Press Graph to view the graph for the currently highlighted pair combination The values for Attenuat...

Страница 90: ...STANCE screen 5 3 9 POWER SUM NEXT Like NEXT Power Sum NEXT is a measurement of electromagnetic coupling between adjacent pairs While NEXT reports test results for each pair combination Power Sum NEXT is calculated from NEXT for individual pair combinations and takes into account the crosstalk from multiple transmission pairs When reporting Power Sum NEXT OMNIScanner displays results for pairs rat...

Страница 91: ...Graph to display the PS NEXT graph for the currently highlighted pair PS NEXT is displayed for the frequency indicated by the cursor position Press Pairs to view PS NEXT graphs for other pairs Press ESC to exit the POWER SUM NEXT screen 5 3 10 POWER SUM ELFEXT Power Sum ELFEXT is calculated from the summation of the individual ELFEXT effects on each pair by the other three pairs In the POWER SUM E...

Страница 92: ... OMNIScanner and OMNIRemote Press Graph to display the PS ELFEXT graph for the currently highlighted pair PS ELFEXT is displayed for the frequency indicated by the cursor position Press Pairs to view PS ELFEXT graphs for other pairs Press ESC to exit the POWER SUM ELFEXT screen 5 3 11 POWER SUM ACR Power Sum ACR is calculated from the Attenuation of the disturbing pair subtracted from the Power Su...

Страница 93: ...nner and OMNIRemote Press Graph to view the graph for the currently highlighted pair combination Attenuation and PSNEXT are displayed for the frequency indicated by the cursor position Press Pairs to view Attenuation and PS NEXT graphs for other pairs Press ESC to exit the POWER SUM ACR screen 5 3 12 OFFICE LOCATOR The Office Locator function allows you to find the termination of an office cable d...

Страница 94: ...ffice Locators before beginning your test 3 At the patch panel run the Office Locator function to identify which office is connected to a given port OMNIScanner will identify office locations and display the ID of the Office Locator adapter found at the far end of the attached cable If you are testing a cable that does not have an Office Locator attached at the other end OMNIScanner will display a...

Страница 95: ...ex at the appropriate wavelength Propagation Delay is the measure of the time required for a signal to advance from one end of the link to the other When measuring propagation delay OMNIScanner measures the round trip delay through both fibers and then divides the result by two assuming that the cables are equal in length Propagation Delay cannot be measured on a single mode fiber this measurement...

Страница 96: ...2 LOSS The Loss function measures the signal loss in a fiberoptic cable The adapters inject a signal into the fiber cable and OMNIScanner and OMNIRemote measure the received signals at 850 and 1300 nm for multimode fiber cables and 1310 for single mode fiber cables The LOSS screen displays the measured power in dBm decibels one milliwatt reference for each wavelength The measured loss and limit va...

Страница 97: ...The Power Meter screen shows the currently selected wavelength and light source mode The overall power is displayed OMNIFiber is designed to provide a consistent calibrated light source for effectively measuring signal loss in fiberoptic cables The transmitted light can be operated continuously or modulated When testing loss use the continuous light source When identifying fiber cables with a tone...

Страница 98: ...g the loss Press ESC to exit the Power Meter screen 5 5 Coaxial Measurements with OMNIScanner COAX TESTS In coaxial cable an insulated wire runs through the middle of the cable and a second wire called the shield surrounds the insulation of the inner wire like a sheath The outer insulation jacket wraps around the second wire The Coax Tests screen displays the measured Length Impedance and Terminat...

Страница 99: ... which allows proper matching to the currents of the transmitter and receiver OMNIScanner measures the characteristic impedance of the coax cable in ohms The Termination function displays whether a cable is open or shorted When the field Length displays NEF the Termination will display ...

Страница 100: ...n The screen displays the wire connections between OMNIScanner and OMNIRemote The pairs that are being tested are defined by the selected test standard Shield continuity is tested if a shielded cable type is selected See Chapter 4 Setup for further information about shielded cables For each of the 8 conductors and the Shield Wiremap can indicate proper pin termination on each end continuity to OMN...

Страница 101: ...e is shielded or screened shield continuity will be measured and if the shield fails the test Wiremap will display the error Wire is open Wiremap checks the continuity of each wire In this example there is no line between pin 5 at each end which indicates a break in connection Use the number on the left side of the screen to find the exact location of the open For example if 36 ft is displayed the...

Страница 102: ...rt can be found 36 feet away from OMNIScanner Split Pairs If a cable is wired correctly pin to pin but there is a split pair Wiremap displays Split Pairs and highlights the pins in error In our example one wire from the 4 5 pair is twisted with one wire in the 7 8 pair The Split Pair will be highlighted with reversed numbers The message SPLIT PAIRS will be displayed below the Wiremap Press ESC to ...

Страница 103: ...ired category of performance In a typical link failures are a result of either a non compliant connection or a faulty cable The ability to determine if a connection meets the expected performance requirement significantly simplifies the diagnosis of a failure To diagnose a failure select TDNXT in the DIAGNOSTICS screen and press ENTER The TDNXT function is also available from the NEXT Graph screen...

Страница 104: ...n caused the failure Press ESC to exit the TDNXT screen 6 3 1 USING TDNXT TO DIAGNOSE A LINK The S Band limit lines provide an easy method to pinpoint faults located at the connection or the cable S Bands allow you to determine if the connections in a link meet the desired performance level They are designed to match the standard category of the selected Autotest A graph containing peaks that are ...

Страница 105: ...at the worst NEXT at 144 0 MHz which is outside the limit line For an easier interpretation the cursor was moved The Link failed Why Press to open the TDNXT screen to further review and diagnose the graph The cursor is positioned at the worst peak which is outside the S Bands Looking at the TDNXT graph we can reach the conclusion that the connection located at 2 meters did not meet the required pe...

Страница 106: ...eview and diagnose the graph The NEXT response from the connector located at 2 m is well within the S Bands and performs significantly better than the requirements The NEXT in the cable is the source of the failure even though the cable s NEXT response peaks are less than those of the connection By knowing that the connection meets its performance requirement the cable is easily identified as the ...

Страница 107: ...les to horizontal cables and impedance structure within a cable Return Loss faults are diagnosed by using the TDRL Time Domain Return Loss function OMNIScanner uses TDRL to determine the amount of Return Loss as a function of distance TDRL with new S band technology Standard Connector Band technology can help you to distinguish and between connection faults and cable faults It assists you with dia...

Страница 108: ...r to select which end OMNIScanner or OMNIRemote you want to view the results for Press to open the TDRL screen The screen displays the TDRL Time Domain Return Loss graph The funnel like lines are the upper and lower S Bands S Bands are limit lines for connections as a function of distance from the cable end They provide a quantitative measure of Return Loss at the connection point which is typical...

Страница 109: ...andard category of the selected Autotest A graph containing peaks that are located outside the S Band at the connection distance indicates that the connection and not the installed cable failed If Return Loss fails but the TDRL graph displays peaks within the S Band at the connection distance the fault is caused by the cable portion of the link If failures occur at both ends of the link use or to ...

Страница 110: ...s Looking at the TDRL graph we can reach the conclusion that the connection located at 2 meters did not meet the required performance and is the cause of failure BAD CABLE GOOD CONNECTION The cursor in the Return Loss graph is located at the worst Return Loss at 110 4 MHz which is outside the limit line The Link failed Why CHAPTER 6 Diagnostics ...

Страница 111: ...hough the cable s Return Loss response peaks are less than those of the connection By knowing that the connection meets its performance requirement the cable is easily identified as the non compliant component of the link The following table summarizes the typical diagnosis process Return Loss TDRL exceeds Conclusion S Band limits PASS N A Return Loss of link is good FAIL YES Connection fails Repl...

Страница 112: ...w you will find the total number of Autotests currently stored in OMNIScanner s memory Light Project folders identify internally stored results Black Project folders identify results stored on MMC To quickly remove all Autotests from a project highlight the project in the RESULTS screen and press the Delete function key A message will prompt you to confirm the operation To view more detailed test ...

Страница 113: ...Circuit ID Press ENTER with the Project highlighted to reveal a list of all projects that are currently stored Use the up arrow and down arrow to highlight the project you want to store the Autotest within and press ENTER to select it Use the down arrow to highlight the Circuit ID and press ENTER to edit the field Press ENTER to terminate the edit mode Press Save to save the changes and return to ...

Страница 114: ...ew detailed information about a saved Autotest use the up arrow and down arrow on your keypad to highlight a Circuit ID in the Project screen and press ENTER FOR TWISTED PAIR CABLING The Autotest Results screen will be displayed The name of the Autotest the cable that was used to run the test and the overall test result PASS or FAIL are shown All measurements that were performed during the Autotes...

Страница 115: ...t arrow on your keypad to quickly page through all test results NOTE If the Save Graphs or Save with Graphs to MMC option was selected when saving the Autotest graphs associated with NEXT Attenuation Return Loss PSNEXT ELFEXT ACR PSELFEXT and or PSACR are available when viewing Autotest results Only the graphs that were selected in the Autotest Options screen will be saved See Chapter 3 Setup Auto...

Страница 116: ... out the direction of the light The arrows also indicate the fiber that the PASS or FAIL result is for The number of connectors and splices is shown at the bottom of the screen if the Autotest loss criteria is formula based See Appendix C for further information Press or to toggle between the results for OMNIScanner and OMNIRemote Press ESC to return to the Project Name screen Press ESC to return ...

Страница 117: ...portable card To copy the test results s contained in one project to the MMC highlight the appropriate Project folder in the RESULTS screen and then press Copy Project to MMC This function is available only for Projects in the internal flash black Project folder To copy all Projects that are listed in the RESULTS screen press Copy Results to MMC ...

Страница 118: ...onnects or equivalent Method B Method A ISO 11801 cable plant 100BASE X ATM Fibre Channel FDDI Token Ring link 1 cross 2 jumper method TIA 526 14A TIA 526 7 10BASE X connect or equivalent Method A Method A 2 TIA 455 171 cable plant Method B link cable 3 jumper method TIA 526 14A TIA 526 7 plant or equivalent Method C Method A 3 8 2 The Launch Jumper Cable The launch jumper cables are 2 m fiber cab...

Страница 119: ...ections are not disturbed after the reference value is established NOTE When a connector is removed and then reattached it is unlikely to go back into the exact same position As a result measurements will change when connections are made or broken OMNIFiber measures two fibers of a duplex link in one Autotest operation Four reference values will be stored two from OMNIScanner to OMNIRemote TX RX t...

Страница 120: ...IRemote 5 Connect the other end of that black launch cable to the RX receive port of the fiber adapter that is attached to the OMNIScanner 6 Leave the two white fiber connectors dangling and unconnected 7 Set the Reference 8 Disconnect only the following two ends OMNIFiber main RX receive and OMNIFiber remote RX receive OMNIFiber main TX and OMNIFiber remote TX stay connected 9 Connect the white f...

Страница 121: ...o the RX receiver port 3 Use a connector adapter to mate the two black fiber connectors 4 Use a connector adapter to mate the two white fiber connectors 5 Set the Reference 6 Disconnect the connectors from the connector adapters without disturbing the fiber connections to the OMNIFibers 7 Set the connector adapters aside 8 3 3 METHOD C THREE JUMPER REFERENCE METHOD This method is used when the lin...

Страница 122: ... A TWO JUMPER REFERENCE METHOD IN LOOPBACK MODE The OMNIFiber main can be used without the remote to make measurements on a single fiber In this state the TX fiber is looped back to the RX port of the same OMNIFiber Adapter NOTE During the Autotest the loss and length of the white fiber will be subtracted from the length of the fiber under test Since the loss in a short jumper cable is negligible ...

Страница 123: ...he RX port and the connector adapter Do not disturb the black fiber attached to OMNIFiber s TX port 5 Leave the two white ends dangling 6 Attach the cable to be tested to the connector adapter and the OMNIFiber s open RX connector RX TX 850 nm 1300 1310 nm 2 m Launch Cable Coupler ...

Страница 124: ... of tests and the construction and structuring of cable libraries Projects can easily be downloaded to several OMNIScanners OMNIScanner Configuration allows you to create Limits that can be used in custom Autotests These limits can be viewed and printed with the extensive graphing utility OMNIScanner Remote Control is designed to control OMNIScanner from your PC It allows you to run Autotests that...

Страница 125: ...ss will erase all test results stored in memory Use ScanLink to upload the results before updating OMNIScanner s software To update OMNIScanner with the files you have downloaded from the WWW to your PC proceed as follows 1 Connect the DB9 end of the serial cable to OMNIScanner s serial port and then connect the DB9 or DB25 end of the serial cable to your PC s serial port 2 Plug the AC adapter int...

Страница 126: ... update press OMNIScanner s Setup function key and then select the option Remote Info The new software version will be displayed NOTE Always update the OMNIScanner software together with the Scanlink Tools software to ensure compatibility Com 1 or Com 2 DB 9 to DB 25 or DB 9 to DB 9 Serial Cable ACAdapter ACAdapter Test Cable CHAPTER 10 Updating Scanner Software ...

Страница 127: ...wnloading 11 1 Portable Data OMNIScanner2 can store data on a very small removable MultiMediaCard This allows for unlimited expansion of memory capacity and transferral of test data without taking OMNIScanner2 out of service Available MulitMediaCard readers and adapters allow data to be uploaded directly to laptops or PCs Tests can be saved in OMNIScanner2 s internal flash memory or to the optiona...

Страница 128: ...ill indicate the progress See Chapter 4 Setup Format MMC for further information Formatting time varies depending on the size of the MultiMediaCard the 8 MB card can be formatted in about 2 minutes 11 3 The MMC Structure The file structure on the MMC is Windows file system compatible When saving test results to the MMC Project folders will be created which allow you to easily retrieve the files wi...

Страница 129: ...re allows you to attach or remove OMNIScanner2 on the fly without having to shut down and restart your PC OMNIScanner2 will be detected automatically This feature is especially useful when uploading results from several scanners Of course the USB works with Scanlink Upload Utility OMNIScanner Configuration and OMNIScanner Remote Control See Chapter 9 Uploading and Printing for more information 12 ...

Страница 130: ...the default setting Search for the best driver for your device Click Next to continue Now select the option CD ROM drive to start the search for the USB driver Click Next to continue What do you want Windows to do Search for the best driver for your device Recommended Display a list of all the drivers in a specific location so you can select the driver you want The wizard searches for new drivers ...

Страница 131: ...anner2 to a different USB port a separate installation of the driver from the OMNIScanner Companion CD is required Windows driver file search for the device OMNIScanner2 USB Windows is now ready to install the best driver for this device Click Back to select a different driver or click Next to continue Location of driver D MTUSB INF Windows will search for new drivers in its driver database on you...

Страница 132: ...st data that are stored in the scanner s memory 8 Scanlink can upload data from several scanners at once If you have more than one scanner connected the USB Connection List will appear and allow you to select the scanners you wish to upload from The OMNIScanner2s are listed by serial number Select the appropriate scanner s and click OK to continue 9 If more than one Project is found the Project Li...

Страница 133: ...on 5 To make sure that you are downloading the desired Configuration the Download Configuration dialog box displays the name of the Configuration 6 The Scanner Type is OMNIScanner 7 Select the Port USB and click OK to continue NOTE OMNIScanner Configuration can be used to download configurations to several scanners at once If you have more than one scanner connected the USB Connection List will ap...

Страница 134: ...r Remote Control will detect the Adapter that is currently attached to OMNIScanner2 and display the name of the adapter If an OMNIFiber adapter is attached the serial number will be displayed The Remote Control program will read OMNIScanner s Configuration Projects Autotest and cables Once the connection is completed the Connection Status bar displays Ready Consult the OMNIScanner Remote Control o...

Страница 135: ... 22 25 x 11 4 x 5 4 cm Weight 1 96 lb 0 89 kg OMNIFiber Size 3 54 H x 3 88 W x 1 55 D 9 x 9 85 x 3 94 cm Weight 0 24 lb 0 11 kg A 2 User Interface OMNIScanner 62 x 62 mm Graphic LCD with backlight Backlit keypad with tactile feedback numeric input dedicated functions 4 soft functions and cursor pad Context sensitive help and operating instructions Tone generating audio for warning or other user fe...

Страница 136: ... 1300 nm 850 nm Indicator ORANGE for switching fibers 1300 nm Indicator ORANGE for switching fibers A 3 Power Removable rechargeable battery pack 9 6 volts 1200 mA hr NNI CD 9 6 volts 1900 mA hr NiMH OMNIScanner2 Built in fast charger using AC adapter Charging Time 3 5 hours for fully discharged batteries Battery life 10 hours operation AC 15 VDC 1 amp AC adapter for continuous operation or chargi...

Страница 137: ...arity None Length 8 bits Handshaking None RTS CTS and X ON X OFF A 7 Universal Serial Bus Type Self powered device Link 12 MBps full speed bulk transfer with two 128 byte FIFOs and automatic retry Connector Type B receptacle Recommended cable Full speed shielded twisted pair with A B plugs USB V1 1 compliant A 8 MultiMediaCard Interface Link 4 6 MBps SPI mode with 16 bit CRC Format 512 byte sector...

Страница 138: ... Channel 95 and 67 TSB CAT 3 Link CAT 3 Channel TIA 568A ISO IEC Class F Link Class E Link Class D Link 50173 Class D Channel 50173 Class D 11801 95 Class C Link 50173 Class C Channel 50173 ISO 11801 Equation Vendor OMNIScanner supports several vendor specific Autotests IEEE 10 BASE T 100 BASE X 1000 BASE T 16 Mbps Token Ring 4 Mbps Token Ring 1000BASE SX 50 micron 1000BASE SX 65 2 micron 1000BASE...

Страница 139: ...Method All cabling transmission performance measurements NEXT RL Attenuation and ELFEXT are implemented using swept frequency domain vector digital signal processing measurement methods to ensure accurate repeatable results A 14 Transmission Performance Measurement Parameters The accuracy of the RF transmission performance measurements is calculated in accordance with error models documented in re...

Страница 140: ...d crossed and split pairs and presents results in a schematic format Includes shield test if connected Uses OMNIRemote for complete mapping of wiring at both ends of the cable A 16 NEXT Test all six pair combinations from both directions using OMNIRemote Frequency Range 1 to 300 MHz Dynamic Range 100dB Measurement Accuracy Calculated per TIA error model Accuracy Significantly exceeds Level III req...

Страница 141: ... A 19 ELFEXT Equal Level FEXT Tests from both directions using OMNIRemote and reports all 24 pair combinations Frequency Range 1 to 300 MHz Dynamic Range 100dB Measurement Accuracy Significantly exceeds Level III accuracy requirements Measurement Resolution 0 1 dB A 20 ACR Attenuation to Crosstalk Ratio Computed for 6 pair combinations from both ends at all frequency points from the respective pai...

Страница 142: ...nge 0 to 500 Ω Accuracy 0 5 Ω 0 to 15 Ω 2 15 to 500 Ω Resolution 0 1 Ω A 24 Power Sum NEXT ACR and ELFEXT Computed for both ends from the respective pair to pair NEXT Attenuation and FEXT measurements A 25 Optical Measurements OMNIFiber 3 dBm to 55 dBm 0 01 dB resolution 0 25 dB typical accuracy A 26 Length OMNIFiber Maximum 6600 ft 2000 m 1 ft 1 m resolution A 27 Delay OMNIFiber 0 to 10 000 nS 1 ...

Страница 143: ...at less than 80 nA or 24 VAC power used to power many telephone keysets The unit detects when a voltage of greater than 15 volts is applied on the inputs and sounds a warning to alert the user to remove the hazard condition immediately to prevent possible damage to the input circuits NOTE Measurements cannot be performed when hazard conditions are present ...

Страница 144: ...ty is warranted by the battery manufacturer for about 200 recharge cycles The capacity of a battery is highly dependent on the way it is recharged Generally batteries that are fully discharged before the recharge cycle may have a longer life than those subject to extended cycles of shallow discharge Conditions of shallow discharge promote a phenomenon known as voltage depression which gives the ap...

Страница 145: ...ollows Charge RED for OMNIRemote low battery status Charge GREEN while OMNIRemote battery is charged Charge GREEN when battery is charged B 3 Battery Tips Power off the unit before changing the battery pack Charging is only enabled when the unit is off If not on AC power the battery packs must be replaced within five minutes to avoid loss of time and date in the OMNIScanner unit If the display goe...

Страница 146: ...300 nm fiber if mated connections x 0 75 of splices x 0 3 length x 1 dB 1000 m OLB Optical Link Budget OLB is the loss measured in a fiber link Loss in the connectors the splices and the cable are added up to the total link loss or OLB The TIA 568A Equation and the ISO 11801 Equation specify the OLB Each has certain PASS FAIL criteria based on the number of connectors and splices located along the...

Страница 147: ...f the electronic signals transmitted through each pin a connector D 1 Serial Cable DB9 Female to DB9 Male Pinouts DB9 Female DB9 Male 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 D 2 Serial Cable DB9 Female to DB25 Male Pinouts DB9 Female DB25 Male 1 8 2 3 3 2 4 20 5 7 6 6 7 4 8 5 9 22 ...

Страница 148: ...llows DB9 DB25 DB25 DB9 Male Male Female Female Pin Pin Signal Pin Pin Signal Description 5 7 GND 7 5 Protective Ground 3 2 TXD 2 3 Transmitted Data 2 3 RXD 3 2 Received Data 7 4 RTS 4 7 Request to Send 8 5 CTS 5 8 Clear to Send 4 20 DTR 20 4 Data Terminal Ready 6 6 DSR 6 6 Data Set Ready 1 8 RLSD 8 1 Received Line Signal Detector 9 22 RI 22 9 Ring Indicator APPENDIX C Cable Pinouts ...

Страница 149: ...sstalk Ratio ACR 85 Auto Shutoff field 71 Autotest 15 24 27 29 34 55 56 58 59 70 106 109 111 Autotest Options 68 Autotest Result 14 B Backlight key 11 21 battery 142 battery indicator 22 Battery status 73 C cable loss 82 Cable Name 61 cable types 23 Cables screen 60 Category 61 certification 25 charging cycle 23 Circuit ID 66 110 Circuit ID template 65 Circuit IDs 30 65 67 continuity 78 98 CONTRAS...

Страница 150: ...PSELFEXT 70 F factory calibrated 22 factory calibration data 22 FAIL 29 58 63 68 82 84 86 104 fiber adapter 17 fiber cable 94 fiber reference 54 Fiber Tests screen 75 fiberoptic cabling 59 113 Function Keys 13 G graph 77 H Hazard condition 14 I IEEE 55 Impedance 61 62 83 104 ISO 55 ISO IEC 9 ISO11801 59 J Jump to Fail box 69 L Launch Cable 115 LCD display 9 Length 57 62 ...

Страница 151: ...osstalk NEXT 85 network cabling link 15 NEXT 34 57 80 82 86 87 97 100 101 103 112 NEXT and Power Sum NEXT 15 NEXT PSNEXT 70 NEXTGraph 36 NVP Nominal Velocity of Propagation 61 62 79 O Office Locator 90 91 OMNIRemote battery 14 opens 78 P PASS 29 58 63 82 84 86 104 Patch Panel 67 pop up list 10 19 Power Meter 94 Power Sum 87 Power Sum ACR 15 34 58 89 90 Power Sum ELFEXT 15 34 58 Power Sum NEXT 34 5...

Страница 152: ...95 115 Remote end 15 REMOTEINFO screen 22 Resistance 15 57 87 Return Loss 15 34 57 70 84 97 104 105 107 112 Return Loss graph 84 RETURNLOSS 36 reversed pairs 78 S S Band 100 101 102 106 108 Save Graph Options 70 ScanLink 121 122 ScanLink for Windows 24 Scanner end 15 scrollbar 85 self test 24 serial number 22 25 Set Default 56 Set Reference 53 54 55 setup 52 SETUP screen 26 shorts 78 99 single mod...

Страница 153: ... 108 test limits 58 test specifications 23 TIA 9 55 TIA568A 59 tone locator 94 Twisted Pair 28 61 TX and RX ports 54 U Updating OMNIScanner Software from the PC 122 USER OPTIONS 71 V View Autotest Detail screen 59 W wavelength 93 wire pairs 10 Wiremap 15 57 63 78 79 97 98 ...

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