Overview; Connecting The Frame Ground - Allied Telesis AT-8400 Series Reference Manual

Cabling and Powering on the Chassis

Overview

Connecting the
Frame Ground
This chapter describes how to cable and power on the AT-8400 Series
switch. First, you need to ground the chassis. Then you can add power.
Procedures for both the AC and DC chassis are provided.
To ensure the safe and proper operation of your AT-8400 Series switch,
you must ground the unit to a ground point using the frame ground
connector on the back panel.
FAN B
AT-8403
Figure 49 Frame Ground Connector
The location of the frame ground is the same on both AC and DC
powered chassis.
Grounding the chassis requires the following items:
❑ One cable lug for connecting the grounding wire to the connector
on the chassis
❑ One 12 AWG bundled wire or 14 AWG solid wire
These items are not supplied with the AT-8400 Series switch.
Warning
You should attach the frame ground before you power on the
chassis.
Warning
The DC terminal blocks on a DC powered AT-8400 chassis have
ground connectors. The ground connectors on the DC terminal
blocks should never be connected to the frame ground.
Frame Ground
WARNING
This unit might have more
than one power cord. To
reduce the risk of electric
shock, disconnect all
power cords before
servicing unit.
AT-8403
PWR B PWR A
FAN A
92