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 10-1205RING-GEN (Analog Ring Generator)
10
FAIL
(cont’d.)
5. If the test passes, then the Analog Ring Generator is
healthy, and one of the Analog circuit packs is
defective. Replace the Analog circuit packs one at a
time, and rerun the test to determine which circuit
pack is causing the problem. When the defective
Analog circuit pack is found, replace it. Rerun the
test. If the test still fails, proceed with Step 6.
6. Since the test still fails, the Analog Ring Generator is
defective. Replace the Analog Ring Generator as
follows:
a. Open the PDU compartment door. The door is
hinged on the right and has a magnetic latch on
the left.
b. If the reset button on the Analog Ring Generator is
out, press it in.
c. Originate calls to several analog stations on
different port circuit packs in different carriers in
the affected port network.
d. If called stations ring, the fault is cleared. Proceed
to Step f. If no stations ring, replace the Analog
Ring Generator. To replace the Analog Ring
Generator, first disconnect the output (P6) and
input (P7) connectors from the Analog Ring
Generator and then remove the two screws at the
base of the Analog Ring Generator.
e. Replace the Analog Ring Generator, secure it with
the two screws at the base, and replace the P6
and P7 connectors (P6 goes on top).
f. Rerun the test. If the test still fails, proceed to Step
7.
7. The active tone/clock may be faulty and incorrectly
reporting the level of the ringing voltage. Replace
the Active tone/clock and rerun the test. Refer to
TONE-BD (Tone-Clock Circuit Pack) Maintenance
documentation for details on replacing the
tone/clock. Rerun the test. If the test still fails,
escalate the problem.
Table 10-373. TEST #118 Analog Ring Generator Query Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page