Local Control Module Troubleshooting; Introduction; Green Cond Led Not Blinking; Red Status Led Blinking Slowly - Cisco GS7000 Installation And Operation Manual

Local Control Module Troubleshooting

Introduction

The LCM indicates its status through the STATUS and COND LEDs on the front of
the module housing. More detailed status information can be obtained using the
handheld programming terminal.
The following sections provide troubleshooting procedures based on the STATUS
and COND LED indications.

Green COND LED not Blinking

If the green COND LED is not blinking, complete the following steps to
troubleshoot.
1 Make sure the LCM is mating correctly with the connectors on the optical
interface board (OIB) in the node. See Installing the SM/LCM (on page 12) for
instructions on proper installation.
2 If the COND LED is still not blinking, remove the LCM from the node and
examine the pins of LCM connectors. If any are bent or broken, replace the LCM.
3 If the COND LED is still not blinking, input power is not being supplied to the
LCM through the OIB. Check and replace the OIB if necessary. Refer to Model
GS7000 GainMaker Scaleable 4-Port Node Installation and Operation Guide, part
number 4013584 for more information.

Red STATUS LED Blinking Slowly

If STATUS LED is blinking slowly, there is at least one alarm condition. This
indication could be caused by:
Improper configuration of the LCM
Real operating condition problems
The following sections explain how to troubleshoot each of these possibilities.
Improper Configuration of the LCM
An improperly configured LCM can be the cause of this indication. Improperly
configured, for example, can mean that the LCM's configuration does not match the
actual receivers/transmitters mounted in the node. This could happen if the LCM
you are using was previously used in another node.
Complete the following steps to troubleshoot.
1 Verify the LCM configuration. Refer to Configuring the LCM (on page 22) for
instructions on properly configuring the LCM.
4022871 Rev C
Local Control Module Troubleshooting
35