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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-58ANL-16-L (16-Port Neon Analog Line)
10
Loop Around Test (#161)
Each Analog port consists of:
■ an NPE for port connectivity and gain, and conferencing functionality
■ a code that converts the digital signals of the TDM Bus to analog signals
■ a battery feed chip that provides power to the telephone set for signaling,
dial pulsing, transmission, and balance
This test is designed to check the on-board transmission capabilities of the NPE,
the codec, and the battery feed chip of the analog port. A Tone Detector and a
Tone Generator talk and listen on the same pair of time slots as the Analog Port.
The Analog Port is then instructed to go into loop around mode (see the following
below). The test passes if the signal measured by the Tone Detector is within
acceptable limits.
0NO
BOARD
The test could not relate the internal ID to the port (no board). This could be
due to incorrect translations, no board is inserted, an incorrect board is
inserted, or an insane board is inserted.
1. Check to ensure that the board translations are correct. Use the list
config command, and resolve any problems that are found.
2. If the board was found to be correctly inserted in step 1, issue the
busyout board command.
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board long command. This should re-establish the
linkage between the internal ID and the port. If this is not the case,
dispatch to check to ensure that there is a valid board inserted.
Table 10-24. TEST #48 Station Present Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page