Power Supplies - Allied Telesis AT-x510-28GTX Installation Manual

Chapter 1: Overview

Power Supplies

46
Please review the following information concerning the power supplies:
The AT-x510-28GTX, AT-x510-28GPX, AT-x510-28GSX, AT-

x510-52GTX, and AT-x510-52GPX Switches have two pre-
installed AC power supplies.
The AT-x510L-28GT, AT-x510L-28GP, AT-x510L-52GT, and

AT-x510L-52GP Switches have one pre-installed AC power
supply.
The AT-x510-28GSX-80 Switch has two pre-installed DC power

supplies. The DC power supply option is only available in the
AT-x510-28GSX-80 Switch.
On all switches except the AT-x510L-28GT, AT-x510L-28GP,

AT-x510L-52GT, and AT-x510L-52GP Switches, the pre-installed
AC or DC power supplies have separate connectors on the back
panel. You can protect the network operations of the switch from a
power circuit failure by connecting the power supplies to different
circuits.
The non-PoE AT-x510-28GTX, AT-x510-28GSX, and AT-x510-

52GTX Switches require only one power supply for full operations.
The second power supply provides power redundancy. It protects
against interruptions to network operations in the event one power
supply loses power or fails. Power redundancy is available only
when both AC or DC connectors on the switch are connected to
power sources.
The PoE AT-x510-28GPX and AT-x510-52GPX Switches also

require only one power supply for network operations, excluding
PoE. The switches can continue to operate even if one power
supply fails or loses power.
The second power supply in the PoE AT-x510-28GPX and

AT-x510-52GPX Switches increases the amount of power for PoE.
The power budget for powered devices is 185 watts when one
power supply is operating and 370 watts when both power supplies
are operating. For further information, refer to "Power Budget" on
page 29.
The power supplies are not field replaceable.

For the DC powered AT-x510-28GSX-80 Switch, the DC supply

wires should be routed from a DC load center containing
appropriate overcurrent branch protection for each DC feed, as
required by the cognizant local electrical authority.
Refer to "Technical Specifications" on page 129 for the input voltage
range.