User's Manual Part 3

Troubleshooting: Installation

DRAFT

SC4812ET BTS Optimization/ATP — CDMA LMF

Apr 2001

6-2

Cannot Log into Cell-Site

Table 6-1: Login Failure Troubleshooting Procedure

 Step Action

1 If MGLI2 LED is solid RED, it implies a hardware failure. Reset MGLI2 by

re-seating it. If this persists, install RGLI2 card in MGLI2 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 MGLI2.

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 MGLI2 and retry.

12 Verify IP addresses are configured properly.

Cannot Communicate to

Power Meter

Table 6-2: Troubleshooting a Power Meter Communication Failure

 Step Action

1 Verify Power Meter is connected to LMF with GPIB adapter.

2 Verify cable setup as specified in Chapter 3.

3 Verify the GP–IB address of the Power Meter is set to 13. Refer to Test

Equipment setup section of Chapter 3 for details.

4 Verify that Com1 port is not used by another application.

5 Verify that the communications analyzer is in Talk&Listen, not Control mode.