363-205-401
Conversions:
Issue 7, March 1997
Page 1 of 2
DLP-517
Test Alarm System for Power Minor and Fan Alarms
1.
!
CAUTION:
System must be out of service to perform test; otherwise, service will be
interrupted. If dual channel bank is already providing service, RT
batteries must be fully charged before test is started; otherwise, service
may be interrupted on the working bank while alarms are being tested.
Consult office records and verify that needed jumpers for central office and
remote alarm points have been made at main distributing frame.
2.
NOTE:
This procedure should only be performed if the
−
48V DC power shelf (or
bulk power plant) is equipped with fully charged batteries.
At RT interrupt AC power by turning off AC circuit breaker to the power shelf
(see label on inside door for cabinets), or unplugging the AC power cord plug
from outlet.
Response:
At
5ESS switch MCC IDCU RT Page 188YZZ,X for 5E9(1)
generic or Page 1880,Y,ZZ,X for 5E9(2) generic (where
Y=IDCU, ZZ=TR303 RT number, X=SM number) POWER
and MINOR alarm messages appear after about 4 minutes.
At RT, ADU indicator NE and BCU indicator PMN light after
about 4 minutes (both banks).
3.
At RT, restore AC power by turning circuit breaker on or plugging power cord
into AC outlet.
Response:
Alarms clear after about 1 minute.
