Ac-Power - Avaya S8700 Maintenance Manual

Maintenance-Object Repair Procedures

AC-POWER

AC Power for AC-Powered Systems
MO's Name (in
Alarm Log)
AC-POWER
1. UU is the universal cabinet number (1–64 for ATM PNC, 1–44 for CSS PNC).
S8700 Multi-Connect systems support two different cabinet types as EPNs:
multicarrier cabinets and single-carrier cabinets. Both types may be powered by
either an AC or DC power source. Environmental maintenance differs according
to a cabinet's type and its power supply.
!
CAUTION:
Before powering down a cabinet or carrier that contains EMBEDDED AUDIX
circuit packs (TN566), first power down the AUDIX unit to avoid damaging its
software. Instructions for powering down this unit are in
AUDIX System's Power Procedures'' on page
EMBEDDED AUDIX documentation.
Power System for Single-Carrier Cabinet
Each single-carrier cabinet has one power supply that distributes DC power and
AC ringing voltage to the circuit pack slots in the cabinet.
AC Power Supply (WP-91153)
In an AC-powered cabinet, a single, plug-in, multi-output AC power supply is in
the power supply slot. A power cord, with a 3-prong plug on one end and an
appliance connector on the other end, connects the supply to a dedicated AC
power source. The inputs to the power supply can be (depending on list version):
120 VAC, 60 Hz, 15 to 20 Amp; three wires in the power cord (one hot, one
neutral, and one ground wire)
220 VAC or 240 VAC, 50 Hz, 10 Amp; three wires in the power cord (one
hot, one neutral, and one ground wire)
The AC power supply produces the following DC outputs: +5 VDC, -5 VDC,
-48 VDC, +12 VDC, and a battery-charging voltage. The DC outputs distribute
power on the cabinet backplane to the circuit pack slots.
The AC power supply also produces AC ringing voltage. The AC ringing voltage
output value and frequency depend on the country of use. The power supply has
a circuit breaker and EMI filtering.
8-4 Issue 1 May 2002
Alarm Initial Command to
Level Run
WARNING test environment UU
Full Name of MO
1
AC Power
''EMBEDDED
4-3, on the circuit pack, and in
555-233-143