Carrier Access 1750 user manual Optional AC Power Supply Connections

Electrical Installation

Power Supply Connections

Power Supply Connections

Optional AC Power Supply Connections ... 6-12

Broadmore Power Input Connector ... 6-14

Connecting –48 VDC Power ... 6-14

WARNING! THE INSTALLER SHALL ENSURE THAT ALL POWER CONNECTIONS TO THE BROADMORE 1750 HAVE AN APPROVED SERVICE DISRUPTION FEATURE EXTERNAL TO THE BROADMORE 1750 FOR EMERGENCY USE. THIS MAY BE A FUSE, CIRCUIT BREAKER, CORRECTLY LABELED SWITCH, OR OTHER APPROPRIATE DEVICE.

Optional AC Power Supply Connections

The optional redundant AC Power Supply Tray mounts in the rack directly below the Broadmore 1750 chassis (see “AC Power Supply Tray” on page 4-8). Each 40W power supply module in the tray converts voltage from 110/220 VAC (50-60 Hz) to –48 VDC. Each DC cable has pigtail wires for connecting –48 VDC power to the Broadmore chassis.

1.Locate the AC power cord provided with each power supply module and connect one end to the AC connector on the rear of each module.

2.Ensure the power switch on the front of each module is turned OFF and that the AC power indicator (LED) does not light.

3.Connect each AC power cord to a facility 110 VAC power receptacle. Cords may be connected to different AC sources for additional redundancy if desired.

4.Turn each power switch to the ON position. The green AC power indicator (LED) should illuminate beside each switch to indicate normal operation.

5.Turn each module power switch to the OFF position and verify that the power indicator is off.

6.Locate the DC power cord provided with each power supply module and connect the plug to the DC connector on the rear of each module.

6-12 Broadmore 1750 - Release 4.6