User's Manual

Troubleshooting: Installation
SC 4812T CDMA BTS Optimization/ATP
May 2000
6-2
Cannot Log into Cell-Site
Follow the procedure in Table 6-1 to troubleshoot a login failure.
Table 6-1: Login Failure Troubleshooting Procedures
 Step Action
1 If MGLI2 LED is solid RED, it implies a hardware failure. Reset MGLI2 by re-seating it. If this
persists, install a known good MGLI2 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 (see Table 3-1 on page 3-4).
If T1 is still connected, verify the CBSC has disabled the BTS.
3 Try pinging the MGLI2 (see Table 3-8 on page 3-16).
4 Verify the LMF is connected to the Primary LMF port (LAN A) in the front of the BTS (see
Table 3-2 on page 3-5).
5 Verify the LMF was configured properly (see Preparing the LMF section starting on page 3–6).
6 Verify the BTS-LMF cable is RG-58 [flexible black cable of less than 76 cm (2.5 feet) length].
7 Verify the Ethernet ports are terminated properly (see Figure 3-5 on page 3-15).
8 Verify a T-adapter is not used on the LMF side port if connected to the BTS front LMF primary
port.
9 Try connecting to the I/O panel (top of frame). Use BNC T-adapters at the LMF port for this
connection.
10 Re-boot the LMF and retry.
11 Re-seat the MGLI2 and retry.
12 Verify IP addresses are configured properly.
Cannot Communicate to
Power Meter
Follow the procedure in Table 6-2 to troubleshoot a power meter
communication failure.
Table 6-2: Troubleshooting a Power Meter Communication Failure
 Step Action
1 Verify the Power Meter is connected to the LMF with a GPIB adapter.
2 Verify the cable setup as specified in Chapter 3.
3 Verify the GPIB address of the Power Meter is set to 13.
4 Verify the GPIB adapter DIP switch settings are correct.
Refer to the Test Equipment setup section for details.
. . . continued on next page
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