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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Compact Modular Cabinets
555-230-128
Issue 3
May 1998
Install and Cable the Cabinets
Page 1-14AC Power and Ground
1
AC Power and Ground
!
CAUTION:
The AC power circuit must be dedicated to the system. The circuit must not be shared
with other equipment and must not be controlled by a wall switch. The AC receptacle
must not be located under the Main Distribution Frame and must be easily accessible.
!
CAUTION:
Removing the 650A Power Unit does not remove AC power from the cabinet. To
remove AC power, pull the AC power cord from the AC appliance inlet.
!
CAUTION:
System grounding must comply with the general rules for grounding provided in Article
250 of the National Electrical Code (NEC), National Fire Protection Agency (NFPA) 70,
or the applicable electric code in the country of installation.
!
CAUTION:
AC mains wiring and testing must be performed by a qualified electrician and must
conform to Article 250 of the National Electrical Code (NEC), National Fire Protection
Agency (NFPA) 70, or the applicable electric code in the country of installation.
Check AC Power
Each CMC uses an auto-ranging 85 to 264 VAC power supply, 47 to 63 Hz, 330
Watts, 4.5 Amps (100-120 VAC) or 2.3 Amps (200 to 240 VAC), at 500 VoltAmps
(VA). The AC power source can be 1 phase of 120 VAC with neutral (100 VAC for
Japan) with 15 Amp circuit breaker, or 1 phase of 220 or 240 VAC (200 VAC for
Japan) with 10 Amp circuit breaker. The AC cord uses a NEMA 5-15P plug or an
IEC 320 plug.
Before powering up the system, check the AC power in the equipment room
using a KS-20599 digital voltmeter (DVM) (or equivalent).
1. Measure the AC voltage between the hot and neutral side of the
receptacle.
2. Depending on the AC power source, verify that the meter reads 90 to 132
VAC or 180 to 264 VAC. If not, have a qualified electrician correct the
problem.
3. Measure the voltage between the neutral and ground side of the
receptacle.
4. Verify that the meter reads 0 VAC. If not, have a qualified electrician
correct the problem.
5. When finished, set the AC mains circuit breakers to
OFF
.