Lucent Technologies 555-230-128 manual AC Power and Ground, Check AC Power

DEFINITY Enterprise Communications Server Release 6	Issue 3
Installation and Test for Compact Modular Cabinets 555-230-128	May 1998

1Install and Cable the Cabinets

AC Power and Ground Page 1-14

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.