User's Manual

Table Of Contents
Troubleshooting: Span Control Link
6-42 1X SC 4812T Lite BTS Optimization/ATP FEB 2005
PRELIMINARY
Span Problems (No Control
Link)
Table 6-47: Control Link Failure Troubleshooting Procedure
n Step Action
1 Connect the LMF Computer to the MMI Port on the applicable MGLI3/GLI3 as shown in
Figure 6-6.
2 Start an MMI Communication Session with the applicable MGLI3/GLI3 by using the Windows
Desktop Shortcut Icon.
Refer to Table 3-14.
3 Once the connection window opens, press the LMF Computer Enter Key until the GLI3>
Prompt is obtained.
4
At the GLI3> Prompt, enter:
config ni current <cr> (equivalent of Span view command)
The system will respond with a display similar to the following:
The frame format in flash is set to use T1_2.
Equalization:
Span A – Default (0–131 feet for T1/J1, 120 Ohm for E1)
Span B – Default (0–131 feet for T1/J1, 120 Ohm for E1)
Span C – Default (0–131 feet for T1/J1, 120 Ohm for E1)
Span D – Default (0–131 feet for T1/J1, 120 Ohm for E1)
Span E – Default (0–131 feet for T1/J1, 120 Ohm for E1)
Span F – Default (0–131 feet for T1/J1, 120 Ohm for E1)
Linkspeed: Default (56K for T1 D4 AMI, 64K otherwise)
Currently, the link is running at the default rate
The actual rate is 0
NOTE
Defaults for Span Equalization are 0–131 feet for T1/J1 Spans and 120 Ohm for E1.
Default Link Speed is 56K for T1 D4 AMI Spans and 64K for all other types.
There is no need to change from defaults unless the OMC–R/CBSC Span Configuration requires it.
5 The Span Configurations loaded in the GLI must match those in the OMC–R/CBSC Database for
the BTS.
S If they do, proceed to Step 6.
S If they do not, proceed to Table 6-48.
6 Repeat Steps 1 through 5 for all remaining GLI Cards.
7 If the Span Settings are correct, verify the EDLC Parameters using the show Command.
Check for any Alarm Conditions that indicate the Span is not operating correctly.
S Try looping back the Span Line from the DSX Panel to the MM, and verify that the looped
signal is good.
S Listen for a Control Tone on the appropriate Timeslot from the Base Site and MM.
table continued on next page
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