User's Manual

Troubleshooting: Installation68P64115A18–1

Mar 2003

1X SC 4812T Lite BTS Optimization/ATP Software Release R2.16.1.x

DRAFT

6-3

Troubleshooting: Installation

Cannot Log into Cell-Site

Table 6-1: Login Failure Troubleshooting Procedures

n Step Action

1 If the MGLI LED is solid RED, it implies a hardware failure. Reset MGLI by re-seating it. If this

persists, install GLI card in MGLI slot and retry. A Red LED may also indicate no termination on

an external LAN connector (power entry compartment at rear of frame).

2 Verify that the span line is disconnected at the Span I/O card. If the span is still connected, verify

the CBSC has disabled the BTS.

3 Try to ‘ping’ the MGLI.

4 Verify the LMF is connected to the primary LAN (LAN A) at the LAN shelf below the SCCP

cage. If LAN A is not the active LAN, force a LAN switch to LAN A by following the procedure

in Table 6-2.

5 Verify the LMF was configured properly.

6 If a Xircom parallel BNC LAN interface is being used, verify the BTS-LMF cable is RG-58

(flexible black cable less than 2.5 feet in length).

7 Verify the external LAN connectors are properly terminated (power entry compartment at rear of

frame).

8 Verify a T-adapter is not used on LMF computer side connector when connected to the primary

LAN at the LAN shelf.

9 Try connecting to the Ethernet Out port in the power entry compartment (rear of frame). Use a

TRB–to–BNC (triax–to–coax) adapter at the LAN connector for this connection.

10 Re-boot the LMF and retry.

11 Re-seat the MGLI and retry.

12 Verify GLI IP addresses are configured properly by following the procedure in Table 6-3.

Table 6-2: Force Ethernet LAN A to Active State as Primary LAN

n Step Action

1 If LAN A is not the active LAN, make certain all external LAN connectors are either terminated

with 50Ω loads or cabled to another frame.

2 If it has not already been done, connect the LMF computer to the stand–alone or starter frame, as

applicable (Table 3-5).

3 If it has not already been done, start a GUI LMF session and log into the BTS on the active LAN

(Table 3-6).

4 Remove the 50Ω termination from the LAN B IN connector in the power entry compartment at the

rear of the stand–alone or starter frame. The LMF session will become inactive.

5 Disconnect the LMF computer from the LAN shelf LAN B connector and connect it to the LAN A

connector.

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