User Manual
Troubleshooting
68P09255A57-2
Aug 2002
SC4812ET Optimization/ATP Manual Software Release R16.1.x.x
PRELIMINARY
6-2
Troubleshooting
Overview
The information in this chapter addresses some of the scenarios likely to
be encountered by Customer Field Engineering (CFE) team members.
This troubleshooting guide was created as an interim reference document
for use in the field. It provides basic “what to do if” basic
troubleshooting suggestions when the BTS equipment does not perform
per the procedure documented in the manual.
Comments are consolidated from inputs provided by CFEs in the field
and information gained form experience in Motorola labs and
classrooms.
Cannot Log into Cell-Site
Follow the procedure in Table 6-1 to troubleshoot any Login Failure
problem during normal operation.
Table 6-1: Login Failure Troubleshooting Procedure
Step Action
1 If MGLI3 LED is solid RED, it implies a hardware failure. Reset MGLI3 by re-seating it. If this
persists, install RGLI3 card in MGLI3 slot and retry. A Red LED may also indicate no Ethernet
termination at top of frame.
2 Verify that T1 is disconnected at the Channel Signaling Unit (CSU). If T1 is still connected,
verify the CBSC has disabled the BTS.
3 Try ‘ping’ing the MGLI3.
4 Verify the LMF is connected to the Primary LMF port (LAN A) in front of the BTS.
5 Verify the LMF was configured properly.
6 Verify the BTS-LMF cable is RG-58 (flexible black cable of less than 2.5 feet length).
7 Verify the Ethernet ports are terminated properly.
8 Verify a T-adapter is not used on LMF side port if connected to the BTS front LMF primary
port.
9 Try connecting to the I/O panel (back of frame). Use Tri-Ax to BNC adapter at the LMF port for
this connection.
10 Re-boot the CDMA LMF and retry.
11 Re-seat the MGLI3 and retry.
12 Verify IP addresses are configured properly.
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