At-Rps3204 Redundant Power Supply - Allied Telesis AT-9408LC/SP Installation Manual

AT-9400 Series Gigabit Ethernet Switches Installation Guide

AT-RPS3204 Redundant Power Supply

The RPS connector on the back panel of the switch connects to the
optional AT-RPS3204 redundant power supply unit, shown in Figure 14.
The unit can provide power to the switch in the event that the switch's
internal power supply fails.
The AT-RPS3204 redundant external power supply features one
preinstalled AT-PWR3204 Power Module and three empty slots for
additional power modules. Each power module can support one switch.
When fully populated with AT-PWR3204 Power Modules, the
AT-RPS3204 unit can support up to four switches simultaneously. For
information about installing an AT-RPS3204 unit, consult the
documentation shipped with the unit.
P O W
E R
AT-RPS3204 Redundant Power Supply Unit
Figure 14
The pinouts for the redundant power supply's 21-pin D-combo port and
connector are described in "RPS 21-pin D-combo Port and Connector
Pinouts" on page 83.
43