User guide

576
pmp-0229 (Mar 2013)
Procedures for Troubleshooting Troubleshooting
10. Also in the Software Version field, verify that both the BHM and BHS are of the
same modulation rate from the factory (BH20 or BH10).
11. Remove the bottom cover of the BHS to expose the LEDs.
12. Power cycle the BHS.
RESULT: Approximately 25 seconds after the power cycle, the green LED
labeled LNK should light to indicate that the link has been established. If the
orange LED labeled SYN is lit instead, then the BHS is in Alignment mode
because the BHS failed to establish the link. In this latter case, and if the BHS
has encountered no customer-inflicted damage, then request an RMA for
the BHS.
Module Has Lost or Does Not Gain Sync
To troubleshoot a loss of sync, perform the following steps.
Procedure 47: Troubleshooting loss of sync
1. Access the Event Log tab in the Home page of the SM.
2. Check for messages with the following format:
RcvFrmNum =
ExpFrmNum =
(See Table 74: Event Log messages for abnormal events on Page 505.)
3. If these messages are present, check the Event Log tab of another SM that is
registered to the same AP for messages of the same type.
4. If the Event Log of this second SM does not contain these messages, then the
fault is isolated to the first SM.
If the Event Log page of this second SM contains these messages, access the GPS Status
page of the AP.
5. If the Satellites Tracked field in the GPS Status page of the AP indicates fewer
than 4 or the Pulse Status field does not indicate Generating Sync, check the
GPS Status page of another AP in the same AP cluster for these indicators.
6. If these indicators are present in the second AP
a. verify that the GPS antenna still has an unobstructed view of the entire
horizon.
b. visually inspect the cable and connections between the GPS antenna and
the CMM.
c. if this cable is not shielded, replace the cable with shielded cable.
7. If these indicators are not present in the second AP
a. visually inspect the cable and connections between the CMM and the AP
antenna.
b. if this cable is not shielded, replace the cable with shielded cable.
Module Does Not Establish Ethernet Connectivity
To troubleshoot a loss of Ethernet connectivity, perform the following steps.
Procedure 48: Troubleshooting loss of Ethernet connectivity