Nortel DMS-100 Series Maintenance Manual page 331

Example of a MAP display:
Node inservice troubles exist:
One or both Units inservice trouble
STAR UNIT 0
Ringing Generator Failure:Ring Generator ANI/COIN Fault
STAR UNIT 1
Ringing Generator Failure:Ring Generator in Excess load
If RG failure is
indicated
not indicated
At the STAR site
5 Make a visual inspection of the ringing generator. Check to see if the LED is
lit.
If the LED is
lit
not lit
6 Power up the ringing generator by moving the circuit breaker on the FSP to
the ON position. (The LED should go off.) These circuit breakers are
identified here as follows:
• breaker labeled Ring 0, Slot1 controls the ringing generator in unit 0, slot
1
• breaker labeled Ring1, Slot 22 controls the ringing generator in unit 1,
slot 22
If power is
restored and the alarm clears
not restored
At the MAP terminal
7 Manually busy one of the faulty STAR units identified in step 4 by typing
>BSY UNIT unit_no
and pressing the Enter key.
where
unit_no
is the number of the SysB STAR unit (0 or 1)
Star Remote System alarm clearing procedures
Inservice troubles Exist:
Inservice Troubles Exist:
DMS-100 Family NA100 Star Remote System XPM15 and up
PM STAR RG
critical
Do
step 6
step 5
Do
step 6
step 7
Do
step 17
step 7
11-65
(continued)