Users Manual Part 2

13.1.5
Unlocking the Site from the Permanent Lock State
Follow this procedure to turn off the permanent lock after antenna maintenance work is completed.
Permanent lock is maintained after resets and power cycles.
Prerequisites: You must be remotely logged on to the MTS.
Procedure:
1 Verify that antenna maintenance work is completed.
2 Ensure that no maintenance works are currently performed.
3 To unlock the site:
a Enter: unlock -p
b If it is safe to unlock the site, when prompted for confirmation, enter: Y
The site is unlocked.
13.1.6
Other Site Controller Symptoms
Table 109: Other Site Controller Symptoms
Symptom Possible Failure Corrective Action
Initial power up self test fails Site Controller Replace Site Controller.
Service terminal unable to com-
municate with Controller
Incorrect cable In-
correct setup param-
eters
Verify cable. Check terminal con-
figuration.
Controller cannot communicate
over Ethernet
Cabling problem Site
Controller
Check Ethernet cable and 50-Ohm
terminator on Ethernet termination.
Replace Site Controller.
Site Controller functions normal-
ly at first then fails after a period
of time
Controller overheat-
ing
Replace if required.
13.2
Base Radio / RFDS / Miscellaneous Troubleshooting
The built-in system troubleshooting intelligence is mainly accessed through the Site Controller and
Base Radio Controller(s) LED, Man-Machine Interface (MMI) status and fault indications.
13.2.1
Base Radio Troubleshooting
This section serves as a guide to isolate Base Radio failures to the module level. It contains
procedures for:
• Troubleshooting
•
Verification/Station Operation
6802800U74-AP
Chapter 13: MTS Troubleshooting
400