Allied Telesis AT-SBx81CFC960 - Manual (Page 27)

SwitchBlade x8106 Chassis Switch and AT-SBx81CFC960 Card Installation Guide
Section I: Hardware Overview 27
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, as shown in Figure 8.
Figure 8. Power Supply Slots
Slots A and B are for the AT-SBxPWRPOE1 AC Power Supply, shown in
Figure 2 on page 22. The power supply is used to provide power to the
PoE ports on the AT-SBx81GP24 Line Card. (These slots are not used if
the chassis does not have AT-SBx81GP24 Line Cards.) There are two
slots for AT-SBxPWRPOE1 AC Power Supplies. You may install two
modules to increase the available PoE power for the powered devices or
to add power redundancy. For more information, refer to “Power over
Ethernet on the AT-SBx81GP24 Line Card” on page 56.
Slots C and D are for the AT-SBxPWRSYS1 Power Supply, which powers
all the hardware components of the chassis, except for the PoE feature on
the ports of the AT-SBx81GP24 PoE Line Card. The chassis must have at
least one AT-SBxPWRSYS1 Power Supply. One module can power a fully
populated chassis. However, you may install two power supplies to add
power redundancy to the chassis.
There are AC and DC versions of the AT-SBxPWRSYS1 Power Supply.
Refer to Figure 2 on page 22 for illustrations of the modules.
Note
The AT-SBxPWRSYS1 DC Power Supply is not compatible with the
AT-SBxPWRSYS1 AC or AT-SBxPWRPOE1 AC Power Supply.
You should not operate the chassis with both AC and DC power
supplies. You may, however, operate the chassis for a short period
of time with AC and DC power supplies if you are converting it from
one type of power supply to another, such as from AC to DC. This
allows you to transition the chassis without having to power it off.
AT-SBxPWRPOE1
Power Supply Slots
A B
AT-SBxPWRSYS1
Power Supply Slots
C D