Allied Telesis AT-SBx31CFC960 - Manual (Page 25)

SwitchBlade x3106 Chassis Switch and AT-SBx31CFC960 Card Installation Guide
25
Slots for the Power Supplies
The chassis has four power supply slots, labelled A to D, across the top of
the front of the chassis.
Figure 8. Power Supply Slots
The two right hand slots are for the AT-SBxPWRSYS1 Power Supply. The
power supply provides power to the Ethernet line cards, controller cards,
and fan module. The only chassis component not powered by the module
is the PoE feature on the twisted pair ports on the AT-SBx31GP24 PoE
Line Card.
A single AT-SBxPWRSYS1 Power Supply can support a fully populated
chassis. However, you may install two power supplies to add power
redundancy to the unit.
There are AC and DC versions of the AT-SBxPWRSYS1 Power Supply.
Refer to Figure 2 on page 20 for illustrations of the modules.
The two left hand slots are for AT-SBxPWRPOE1 Power Supplies. This
unit provides PoE for the ports on the AT-SBx31GP24 Line Card. (The line
card also needs the AT-SBxPWRSYS1 Power Supply to operate its
switching functions.) You may install two AT-SBxPWRPOE1 Power
Supplies in the chassis to provide power redundancy or increase the
amount of PoE power.
AT-SBxPWRPOE1
Power Supply Slots
A B
AT-SBxPWRSYS1
Power Supply Slots
C D