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Viavi OneAdvisor 800 Series Manual Download Page 9

 

 

 

 

 

 

 

 

 

 

Page 9 of 43 

5.

 

CellSite Installation Test Overview 

The OneAdvisor is a portable instrument for Cell Site installation and maintenance, the main test functions 

of OneAdvisor for cell site installation include: 

 

-

 

Fiber Inspection  

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Continuity Testing  

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Optical Insertion Loss 

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Fiber Characterization - OTDR 

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COAX Sweep Testing - Cable and Antenna  

5.1

 

Fiber Inspection and Test – Simplex/Duplex 

5.1.1  Overview 

Every fiber connection is a potential point of failure should the end face of the mated fibers be dirty or 

damaged.  Proper handling as well as inspection and cleaning techniques are imperative.  The best practice 

is to Inspect Before You Connect (IBYC).  Trace the steps on the flow chart below.  Always inspect before 

that first cleaning attempt.  If the end face is already pristine, the redundant cleaning effort could introduce 

a problem.   

 

Most Operators require fiber inspection of every end face in the path to the IEC-61300-3-35 Standard.  

The VIAVI P5000i and FiberChek Pro both provide automated pass/fail analysis to this standard. 

 

Measurement 

Passing Criteria 

Fiber Inspection 

Passing Auto-Test according to IEC-61300-3-35 

 

 

  

 

Fibercheck - Fiber Inspection Quick card 

 

 

 

Summary of Contents for OneAdvisor 800 Series

Page 1: ...Page 1 of 43 Method of Procedure CellSite Installation Fiber Inspection Fiber Continuity Optical Insertion Loss OTDR and Cable Antenna Testing OneAdvisor 800 ...

Page 2: ...ection and Test MPO 14 5 3 Continuity Test with a Visual Fault Locator 16 5 4 Optical Insertion Loss 17 5 4 1 Tools ONA 800 OTDR with Optical Source CW and USB Optical Power Meter MP 60 80 17 5 4 2 Insertion Loss Performing the Test 19 5 5 OTDR Testing 22 5 5 1 OTDR Test Overview 22 5 5 2 Test Setup 22 5 5 3 Instrument Setup and Test OTDR 23 5 6 Cable and Antenna Testing 29 5 6 1 Return Loss VSWR ...

Page 3: ...er Endface and Bulkhead Analysis o Simplex Duplex and MPO Endfaces Fiber Continuity Testing Optical Insertion Loss Optical Time Domain Reflectometry including o Optical Insertion Loss o Event Characterization o Event Loss and Length Cable and Antenna Testing including o Reflection tests Return loss and VSWR o Distance to Fault o Cable Loss ...

Page 4: ... The numbers in bubbles are a reference to the test applications discussed later that provide the required measurement Measurement Passing Criteria Fiber Inspection Passing Auto Test according to IEC 61300 3 xx Fiber Reflectance per Connector More negative than 45 dB Fiber Loss through a Connector Less than 5 dB Fiber Path loss end to end Less than 3 dB of loss 3 dB COAX System Return Loss 12dB to...

Page 5: ...Page 5 of 43 3 Test Applications Overview Figure Test Access Points at the Tower ...

Page 6: ... Fiber Inspection Inspect Before You Connect IBYC MPO Fibers Any Fiber using an MPO Connector such as Corning Optitip Jonhon CommScope HMFOC and ODC MPO connectors Dirt and debris in connections will cause system failure Dirty fibers can be cleaned Damaged ones should be replaced At the Top of the Tower at the junction box At the Bottom of the Tower at the handoff from Fronthaul to Tower May be do...

Page 7: ...ru the RU jumper with a loopback on RU end of the jumper back down to the source If you have an OTDR skip this test as an OTDR result includes this measure From the Bottom ONA 800 with OTDR CW Light Source ONA 800 with USB Optical Power Meter MP 60 80 4 Optical Time Domain Reflectometry OTDR During Construction Test both TX and RX on a duplex fiber up and back via a loopback fiber placed at the RU...

Page 8: ...er Electronic Manual or EZcal Manual OSL calibration kit Type N m EZcal electronic OSL calibration kit Type N m Manual EZCal JD78050509 JD70050509 RF Cables RF Cable DC to 8 GHz Type N M to Type N F 1 5 m G700050531 Accessories Fiber Tools OTDR Jumper Cable 20 meters Fiber Cleaner s IBC Cleaner for Bulkheads Jumpers and SFPs Cletop for Fiber Jumpers Only ...

Page 9: ... mated fibers be dirty or damaged Proper handling as well as inspection and cleaning techniques are imperative The best practice is to Inspect Before You Connect IBYC Trace the steps on the flow chart below Always inspect before that first cleaning attempt If the end face is already pristine the redundant cleaning effort could introduce a problem Most Operators require fiber inspection of every en...

Page 10: ...BERD or purpose built VIAVI displays The FiberChek Probe and P5000i use the same adapters for the various interfaces you will encounter Study the following table for proper adapter tips and cleaning options Inspect Before You Connect When you are building or troubleshooting a site it is all about eliminating possible sources of problems Making sure fibers AND ports Bulkheads and SFPs are clean and...

Page 11: ... if it has the same appearance as a fiber picture on far left The RX side of SFP should not be cleaned just inspected to make certain there are no large obstructions Remove the entire aqua blue cap from the pen to clean the SFP or a bulkhead see below LC Bulkhead or Patch Panel FBPT LC ODC Out Door Connector Located at top of the hybrid to the RU jumper cable on Ericsson To inspect ODC fibers the ...

Page 12: ... face creates a superior connection in terms of reflectance and durability The OTDR port can be cleaned with a SC style IBC stick cleaner shown above The fiber itself can be cleaned with that as well or with wipes CLETOP etc The tips for the inspection scope have a built in angle as well Be sure and inspect and then protect the cleanliness of your OTDR port and launch fiber 5 1 5 Fiber Inspection ...

Page 13: ...op Down select type of connector profile Select Test 3 Analyze Pass Fail If Test fails please clean the fiber end face and retest with scope procedure If Test passes move on to VFL Testing 3 Analyze Pass Fail If Test fails please clean the fiber end face and retest with scope procedure If Test passes move on to VFL Testing ...

Page 14: ...d face is already pristine the redundant cleaning effort could introduce a problem Examples of MPO connectors on the Tower are Corning Optitip Jonhon CommScope HMFOC and ODC MPO connectors Most Operators require fiber inspection of every end face in the path to the IEC 61300 3 35 Standard The MPO Sidewinder provides automated pass fail analysis to this standard Measurement Passing Criteria Fiber I...

Page 15: ...nnection and at the DU side of tower jumper FCPT MTPA FCPT MTP FCPT COD MTA P FCPT COD MTA R FCPT ODC12A P FCPT ODC12A S Sidewinder connection to MPO jumpers and connectors FCPT MTPA FCPT MTP OptiTip Connectors Located at top of the hybrid to the RU jumper cable ODC Out Door Connector FCPT COD MTA P FCPT COD MTA R FCPT ODC12A P FCPT ODC12A S ...

Page 16: ... or cut When installing a fiber system for a macro cell site the VFL is a time saver When testing each TX RX fiber pair a loopback device or cable can be placed at the far usually the RU end of the fiber pair The VFL s red light is shined up one fiber and returns on the other If it does not the person at the far end might notice the red light coming from a fiber other than where they connected the...

Page 17: ...edundant Use the Insertion Loss Test as part of a spot check at the warehouse or on the ground before hoisting The use of an OTDR test is recommended for final close out The OTDR provides the system loss information as well as the per event reflectance and per event loss information required Most Operators expect a round trip Insertion Loss IL value to be less than 3 dB half power loss Measurement...

Page 18: ...ting to System under test There are many Power Meters that could be used for this test The one shown above is the MP 60A Power Meter plugged into the ONA 800 It is screen less device with a USB connection to be plugged into a ONA 800 display shown on left in these illustrations Both examples are passing because the result is that the loss is less than 3dB Read that as NOT more negative than 3dB 1 ...

Page 19: ...st jumpers from the ONA 800 OTDR Port to the MP 60 installed into the USB port of the ONA thru a coupler as shown 2 Press the Home Key Select the Fiber 1 Module Select the Source key 3 Confirm module is in CW mode and confirm wavelength 1310nm Using drop down menus Select Laser Start ...

Page 20: ...velength measurement with MP 60 Select Tap Select 1310nm Tap Select dB Verify Results Power Level 5 Once in the dB mode touch the ABS REF button to reference out the test cables The fiber jumpers have now been referenced into the results ...

Page 21: ...ex LC coupler Also connect the receive cable to the other port on the duplex coupler This receive or run out cable will give the OTDR visibility to the last connection that will be part of the system Turn Laser On Return to Power Meter screen and record measurements This is the Loss in both directions 7 The result should be greater than 3dB It does not appear can set a pass fail threshold in our O...

Page 22: ...iber system Thresholds can be set not just for total loss dB but for each contributing element Most Operators expect the following limits for events and measurements made by an OTDR Measurement Passing Criteria Reflectance per event More negative than 45 dB Loss through a Connector Less than 5 dB Path loss end to end Less than 3 dB USEFUL INFORMATION It is important to know the fiber distance from...

Page 23: ...Follow this procedure to set up a ONA 800 to run the Optical Time Domain Reflectometer OTDR The picture below is of a ONA 800 with an OTDR module attached The port of the OTDR module is covered with a green dust protector indicating that an Angled Physical Contact APC connector is used on the port ...

Page 24: ...Page 24 of 43 Step Action Description 1 Power ON the OneAdvisor Connect Launch Cable to the OTDR port Press and hold the ON OFF button for 3 seconds to power on the OneAdvisor ...

Page 25: ... FUT via an optical patch panel OPP or an optical coupler 1 If the interface to the FUT is a patch cord connect the patch cord to an optical coupler with the same connector type 2 Inspect the FUT connected to the coupler or OPP 3 Inspect the other fiber end face of the Launch Cable 4 Connect the Launch Cable to the coupler or OPP Figure 1 Connecting the Launch Cable to the FUT with a coupler Figur...

Page 26: ...e EXPRESS configuration file to setup the T BERD for 5 second acquisitions to quickly confirm loss and distance Select the CERTIFICATION configuration file to setup for 20 second acquisitions to confirm loss and distance AND analyze all events slices connectors etc Tap to select a user configuration file stored in the disk fiber config folder Select Load If you used this same test last time it wil...

Page 27: ...cription 5 Select Desired Wavelength laser Measurement unit Launch Cable yes no Alarm yes no User Defined Select Start Test If a launch cable is being used add the length and units 6 SmartTest will automatically configure the OTDR ...

Page 28: ...the OTDR is good 9 Touch the SmartLink Button for the SLM View if needed 10 1 Tap the Save softkey to view File Recording Information 2 Enter Fiber Id Fiber Number Locations and Job ID as follows 3 Tap field to open keyboard 4 Tap to clear existing text 5 Enter desired value 6 Tap icon to return ...

Page 29: ...may be an impedance mismatch caused by nick or cuts in a cable Also the material properties as well as the dimensions of the cable or connector plays important role in determining the impedance match or mismatch A high value of return loss denotes better quality of the system under test or device under test For example a cable with a return loss of 21 db is better than another similar cable with a...

Page 30: ...rizes the performance of the overall system If either of these is failing the DTF measurement can be used to troubleshoot the system and locate the exact location of a fault Measurement Passing Criteria Return Loss 12dB to 16dB typical VSWR 1 67 to 1 37 ...

Page 31: ...Page 31 of 43 5 6 2 Initial Setup The following procedure describes the initial setup of cable and antenna analysis including turn up and connectivity ...

Page 32: ... RF Output port ONA Front View ONA Back View 3 Cable and Antenna Analysis mode Select Home Tests CAA CAA To select a measurement type select the multi grid icon Choose either single or dual testing selecting the corresponding layout o Single o Horizontal o Vertical Select the desired measurement type o Reflection VSWR o Reflection Return Loss o DTF VSWR o DTF Return Loss o 1 Port Cable Loss Cable ...

Page 33: ...lect the desired measurement layout Select the corresponding reflection measurement icon Return Loss or VSWR Note Refer to the Initial Setup section for initial configuration and connectivity with OneAdvisor Reflection Test Measurement Types Step Action Description o 1 Port Phase o RF Source o Smith Chart Real time Spectrum Measurement Screen Measurement Types Layout Cable and Antenna Measurement ...

Page 34: ...ply Note Frequency is set by either Start Frequency and Stop Frequency or by Center Frequency and Span Frequency Top bar frequency group Side bar configuration icon Setting Frequency Range 3 Calibrate the instrument Select Cal icon from the side bar navigation and follow the on screen instructions Note If an RF extension cable is required connect the RF extension cable into the CAA Module Reflecti...

Page 35: ...tension cable 5 Enable a PASS FAIL indicator by setting a limit line Select the configuration icon from the side bar navigation Select the configuration title the default is Frequency Select Limit Select Pass Fail to turn it ON Select Limit Line Set the limit line value from the bottom bar navigation e g 20 Select Limit Line to turn it ON Reflection Loss with PASS FAIL indicator ...

Page 36: ...urn Loss or DTF in VSWR Note Refer to the Initial Setup and RF Reflection Test sections for initial configuration connectivity and reflection test DTF Measurement Types 2 Configure the DTF measurement Select the configuration icon and select General Set the desired Data Points Interference Rejection Windowing Units and Bias General Cable and Antenna Settings 3 Configure the DTF distance measuremen...

Page 37: ...esponding propagation velocity and cable loss at 1GHz of the cable under test Cable Type Setting 5 Enable a PASS FAIL indicator by setting a limit line Select the configuration icon from the side bar navigation Select the configuration title the default is General Select Limit Select Pass Fail to turn it ON Select Limit Line Set the limit line value from the bottom bar navigation e g 20 Select Lim...

Page 38: ...tial Setup section for initial configuration and connectivity Cable Loss Measurement 2 Set the frequency band or range to perform reflection test Select the frequency group of the top bar navigation or the configuration icon from the side bar navigation Set the required frequency range by selecting the desired field enter the frequency value and select Apply Note Frequency is set by either Start F...

Page 39: ... extension cable into the CAA Module Reflection RF Output port and on the other end of the RF extension cable connect the calibration kit Calibration Process 5 Enable a PASS FAIL indicator by setting a limit line Select the configuration icon from the side bar navigation Select the configuration title the default is Frequency Select Limit Select Pass Fail to turn it ON Select Limit Line Reflection...

Page 40: ...lts The following procedure describes the steps to save measurement results with OneAdvisor Step Action Description 1 Saving measurement results Select the Save icon from the side bar navigation Select Internal memory icon to set the file destination Select the destination memory Enter the desired file name in the File Name field Select the measurement file type Select Save Save Measurement Result...

Page 41: ...t up and or results interpretation quite efficiently via Smart Access Anywhere Step Action Description Diagram 1 Place ONA 800 on the network Press the Home Key Select the System menu 2 System Network Icon to configure LAN WAN access obtain an IP address Use wired Ethernet Static or DHCP or WIFI if so equipped ...

Page 42: ...ession Check the Enable VNC access box To set up a session Click the Connect Button Picture now shows the Disconnect button The ONA 800 will communicate with the SSA server across the Internet and make a connection The server will return a 10 character alpha numeric string Shown here ...

Page 43: ... new firmware updates for the CellAdvisor 5G are released and it is recommended to keep the instrument in the latest firmware to provide all the enhancements and bug fixes For firmware updates go to http celladvisor updatemyunit net For additional information of cell site test go to http www viavisolutions com en products network test and certification cell site test ...

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