User's Manual

mBSC2500L-005-RUCM11
MBSC2500L-005-RUCM11 April 15, 2013
Page 70
6.4.1 Host Unit Trouble Shooting
Is the HU shelf
grounded?
Is the PSU LED
Green?
Check the grounding connection and connect
the ground cable to the HU
No
Yes
Check the power cable connection.
Check the power supply connection.
Check the PSU switch.
No
Is the BIU LED
Green?
Yes
Check for pin connector damage on the BIU. If
undamaged, reseat the board. Uninstall the BIU
and re-insert the BIU into the HU slot.
No No
Spare BIU available?
Is the FIU LED
Green?
Yes
Check for pin connector damage on the FIU. If
undamaged, reseat the board. Uninstall the FIU
and re-insert the FIU into the HU slot.
LED in Red: both fiber connections are open
LED in Yellow: one fiber connection is open
No No
Spare FIU available?
Installation complete and continue to NMS
installation
Yes
Contact local BTI customer service
No
Figure 53Host Unit Trouble Shooting