Carrier Access 1750 Power Supply Connections

6-12 Broadmore 1750 - Release 4.6
Electrical Installation
Power Supply Connections
Power Supply Connections
Optional AC Power Supply Connectio ns ... 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 modul e 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. T urn 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.