Installation guide

Installing the AT-8400 Chassis

Powering on a DC Chassis

This procedure describes how to power on a DC AT-8400 chassis. If your

chassis is AC powered, see Powering on an AC Chassis on page 19.

Warning

ALWAYS connect the wiring to the LAN equipment before

connecting the wiring to the breaker. To avoid the danger of

physical injury from electrical shock, do not work with HOT feeds.

Always be sure that the breaker is in the OFF position before

connecting the wiring to the breaker.  16

Note

A tray cable is required to connect the power source if the chassis is

listed Type TC tray cable and rated at 600 V and 90 degree C, with

three conductors, minimum 14 AWG.

1. Locate the two DC terminal blocks, labeled PWR A and PWR B, on the

rear panel of the chassis.

Note

If the chassis contains only one power supply, you can connect the

DC power wires to either terminal block.

2. Starting from the left side of a terminal block, identify the positive,

frame ground and negative terminals using the symbols below the

terminal block or Figure 12.

Figure 12 DC Terminal Block

40-60VDC INPUT