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Prepare to Leave the Site68P09258A31–A

Oct 2003

1X SCt 4812T BTS Optimization/ATP

5-5

BTS Site Span Configuration Verification

Table 5-4 describes how to verify the current Span Framing Format and

Line Build Out (LBO) parameters. ALL MGLI2/GLI2 boards in all

C–CCP shelves that terminate a T1/E1 span should be verified.

Table 5-4: BTS Span Parameter Configuration

Step Action

1 Connect a serial cable from the LMF COM1 port (via null modem board) to the front panel of the

MGLI2 MMI port (see Figure 5-1).

2 Start an MMI communication session with MGLI2 by using the Windows desktop shortcut icon (see

Table 3-3 on page 3-13).

NOTE

The LMF program must not be running when a Hyperterminal session is started if COM1 is being

used for the MMI session.

3 Enter the following MMI command to display the current MGLI2/GLI2 framing format and line code

configuration (in bold type):

span view <cr>

Observe a display similar to the options shown below:

COMMAND ACCEPTED: span view

The parameter in NVM is set to T1_2.

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

Clock Alarms (0000):

DPLL is locked and has a reference source.

GPS receiver self test result: passed

Time since reset 0:33:11, time since power on: 0:33:11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-40

NOTE

– Defaults for span equalization are 0–131 feet for T1/J1 spans and 120 Ohm for E1.

– Default linkspeed 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.

– If the current MGLI2/GLI2 framing format and line code configuration does not display the

correct choice, proceed to Table 5-5.

4 Repeat steps 1 through 3 for all remaining GLIs.

5 Exit the GLI MMI session and HyperTerminal connection by selecting File from the connection

window menu bar, and then Exit from the drop–down menu.