User Guide

DEFINITY Enterprise Communications Server Release 5

Maintenance and Test for R5vs/si

555-230-123

Issue 1

April 1997

Maintenance Object Repair Procedures

Page 10-1680XXX-BD (Common Port Circuit Pack)

Neon Test (#220)

This test checks the voltage required to light the neon lamp on an analog

terminal. A relay connects a 150V DC source from the backplane of the circuit

pack onto the voltage bus, and another relay connects a 2K shunt from the bus

to ground. Current in the line is then monitored to determine if the voltage is

present.

The neon test runs only for TN746 and TN769 Analog circuit packs. If the circuit

pack is not a TN746 or TN769, the test returns PASS, but there is no testing done

to the circuit pack.

any NO

BOARD

This is normal if the test is being done when (a) the

circuit pack is not physically in the system or (b) the

system is booting up. Otherwise, there is some

inconsistency between the physical configuration and

the data kept in the system.

1. Verify that the circuit pack is physically in the

system.

2. Verify that the system is not in a stage of booting up.

3. Retry the command at one-minute intervals for a

maximum of five times.

4. If the test continues to return NO BOARD, escalate

the problem.

Table 10-495. TEST #53 SAKI Sanity Test — Continued

Error

Code

Test

Result Description/ Recommendation

Continued on next page