FHO5000 OTDR FAQ for Grandway F2H OTDR

• What is the operating system for the FHO5000 OTDR?

       The operating system for the OTDR is Windows CE.

• How to do the calibration for the FHO5000 OTDR?
• What Modules can be added for the FHO5000 OTDR?

     The FHO5000 OTDR support optional power meter module, light source module, micro scope module, able to add touch screen feature, water proof features.

• How do I know which range to select on my OTDR?

   As for FHO5000 OTDR support Auto testing mode, so it is able to automatically scan the network and set the range setting. The selected range is at least bigger than the total length of the launch cable plus the cable length under test, plus the tail cord. For best result and trace display in the OTDR, the selected length is better about 150% of the total length (total length = launch cable length + cable under test length + tail cord length). 

• What Pulse width should use when testing the fiber?

      The key is to always use the shortest pulse width possible that will satisfy the trace quality and allow the user to see the end of the fiber. Short pulse widths are used for short fibers. Long PW's are used on long fibers. If the trace quality exhibits excessive noise that can't be removed by additional averages, select the next higher pulse width.

For FHO5000 OTDR, please refer to the table below:

PulseWidth-setting-for-FHO500 OTDR

• What Adapters included by FHO5000 OTDR

      The standard fiber adapter for FHO5000 OTDR is FC, but optional SC & ST. But for user who want test SC or LC by standard FC adapter, you are suggest to use FC/UPC - SC/UPC or FC/UPC - LC/UPC launch cable.

      As second solution is to use a bulkhead on the Fiber Under Test side that is hybrid, for example FC to SC.

• How to test a bare fiber

It is recommended to use a pigtail and mechanical splicer to test the bare fiber. Connect a pigtail of the correct fiber type and connector to the OTDR or far end of a launch cable. Cleave the opposite end of the pigtail and insert it into a mechanical splice. Cleave the end of your fiber to be tested and insert it into the opposite side of the mechanical splice. By using the "Real Time" function available on most OTDRs you can adjust the position of the fibers in the mechanical splice to get the best throughput. The cable is now ready to be scanned.