User manual

Wide Bank 28 DS3 - Release 2.4 July 2004 4-11

Physical Installation

Mounting the Power Converter/Battery Charger

The Wide Bank can be supplied with power for US operation with the optional 115 VAC to –48 VDC

Power Converter/Battery Charger. This converter includes both a six-foot grounded AC power cord and

a six-foot three-position DC power cable. The Power Converter/Battery Charger has four mounting

holes for attaching the unit to a wall or other flat surface. To mount the Power Converter/Battery

Charger on a nearby wall, locate the converter within 5.5 feet of the Wide Bank rear connector panel

and use screws or anchors appropriate for the mounting surface.

When using a single power converter, the power connectors shipped with the Wide Bank must be “daisy

chained” to supply power to both the A and B power input connectors.

Mounting the Battery Unit

 Wall-Mounting the Battery Unit ... 4-11

 Rack Mounting the Power Converter & Battery Unit ... 4-14

The Wide Bank power supply redundancy can be supplemented by using a Carrier Access Corporation

–48V Battery unit. The battery unit is kept charged by the Power Converter/Battery Charger. When AC

power fails, the battery unit supplies continuous –48 VDC power for six to eight hours, depending on

operational status, the condition of the batteries, and the ambient temperature. A single 6-foot DC power

cable connects the battery unit to the Power Converter/Battery Charger.

Wall-Mounting the Battery Unit

To mount the battery unit on a nearby wall, locate the battery unit within 5.5 feet of the Power

Converter/Battery Charger and use screws or anchors appropriate to the mounting surface. To

mount the battery unit on a 3/4-inch piece of plywood, use four #8 x 3/4-inch pan-head wood

screws. See Figure 4-8.

1. Using the template included with the battery unit, clearly mark the locations of the four screws

on the plywood. If this template is misplaced, a scaled-down copy of the template, with

dimensions, is included in Figure 4-8.

DANGER! DO NOT DRILL THE PILOT HOLES SO LARGE THAT THE SCREW THREADS

WILL NOT HOLD. IF THE BATTERY UNIT SHOULD FALL, IT CAN CAUSE SERIOUS INJURY

OR DAMAGE. THE CORRECT SIZE DRILL BIT FOR #8 WOOD SCREWS IS 7/64 INCH (1/8

INCH MAXIMUM).

2. Pre-drill pilot holes for all four screws using a drill bit of appropriate size for the screws you

are using. This is necessary because the holes are so close to the battery case that it is difficult

to drive the screws into the plywood.