ANL-LINE, ANL-NE-L (8-Port Analog Line)
Issue 1 May 2002
8-93
555-233-143
The noise test is performed by filtering out the tone, and then measuring inherent
port noise.
NOTE:
This loop-around test is sensitive to the length of the loop, the equipment in
the loop, or the equipment terminating the loop, such as off-premises
stations. If this test is causing a false alarm, then disable the test by
changing the Tests field to “no” using the change station command for this
station.
Figure 8-1.
Analog Looparound and Conference Test
TDM BUS
BFC: Battery Feed Chip
NPE: Network Processing Element
Analog
Line
Port
BFC
CODEC
NPE
Tone
Generator
Tone
Detector
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...