DOCS-004 Manual, LBV300-6 and LBV600-6 Rev C – 12APR10 Page 7 of 8
Please refer to your LBV configuration to determine which channels are
utilized on your LBV.
3.2 No Link
If you receive no link indications, the issue is possibly in the tether itself. To test,
disconnect the fiber from the LBV, remove the Pull Out Hub from the reel, and
disconnect the fiber optic cable. Use a high intensity white light, LED flashlight or
similar, to shine light from end to end.
NOTE: The fiber optic connector must be centered over the light source for this test to
work.
Light shining into the wet end (FC) connector
of the tether.
Light shining,
Fiber OK
No Light
Bad Fiber
If there is no light transmission, the fiber optic cable inside the tether is damaged. At
this point, you will need to get access to a fiber optic TDR (Time Delay Reflectometer)
to determine at what point in the tether the damage has occurred. SeaBotix Inc. does
offer a Fiber Optic Re-termination Kit to allow the user to complete this repair in the
field. Please contact
to assist in identifying the proper kit for
your application.
A ST-ST fiber optic cable can be utilized to verify that the issue is in the tether itself. To
perform this verification, insert one end of the ST fiber cable into the FC connector on
the rear of the LBV and install the other end onto the connector on the MUX hub. Leave
the wet mateable connector and the silver ODU connector for POWER connected. Turn
the LBV on. If the LBV operates correctly at this point, the issue is a faulty fiber in the
tether itself.
