Chapter 1: Overview
28
Installing two power supplies adds power redundancy.
The power supplies are not recommended for the PoE+ AT-x930-
28GPX and AT-x930-52GPX Switches because they do not supply
power for PoE+ devices. You may install them into PoE+ switches,
but the switches will not support powered devices.
System and PoE+
Power Supplies
The AT-PWR800 and AT-PWR1200 Power Supplies provide both system
power and power for PoE+ devices on AT-x930-28GPX and AT-x930-
52GPX Switches. Refer to Figure 7.
Figure 7. AT-PWR800 and AT-PWR1200 Power Supplies
A PoE+ switch with one AT-PWR800 Power Supply has the following
power characteristics:
Full system power
380 watts of PoE+ power
A PoE+ switch with two AT-PWR800 Power Supplies has these power
characteristics:
Full system power and redundant system power
Either 740 watts of PoE+ power or 380 watts of active PoE+ power
and 380 watts of redundant PoE+ power.
A PoE+ switch with one AT-PWR1200 Power Supply has the following
power characteristics:
Full system power
740 watts of power for PoE devices
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