Allied Telesis AT-SBX31GC40 User Manual
Chapter 1: Overview
62
Power Supplies
There are three power supplies:
AT-SBxPWRSYS1 AC Power Supply: This module supports all the
hardware components in the chassis, except for the PoE feature
on the ports on the AT-SBx31GP24 Line Cards. A single power
supply can support a fully populated chassis, but you may install
two power supplies for power redundancy.
hardware components in the chassis, except for the PoE feature
on the ports on the AT-SBx31GP24 Line Cards. A single power
supply can support a fully populated chassis, but you may install
two power supplies for power redundancy.
AT-SBxPWRSYS1 DC Power Supply: This module has the same
function as the AC version, but is intended for DC power
applications.
function as the AC version, but is intended for DC power
applications.
AT-SBxPWRPOE1 Power Supply: This module provides the PoE
power for the ports on the AT-SBx31GP24 PoE Line Cards. The
module provides 1200 watts of power for PoE. You may install two
PoE power supplies in the chassis, for a total of 2,400 watts of
power.
power for the ports on the AT-SBx31GP24 PoE Line Cards. The
module provides 1200 watts of power for PoE. You may install two
PoE power supplies in the chassis, for a total of 2,400 watts of
power.
See Figure 4, “Power Supply Units” on page 21 for illustrations of the
power supplies.
power supplies.
Here are the power supply guidelines:
Power supply modules are not included with the chassis and must
be purchased separately.
be purchased separately.
The AT-SBxPWRSYS1 AC and DC Power Supplies are hot
swappable. If the chassis has two power supplies and one of them
fails, you do not have to power off the operational module to
replace the failed unit.
swappable. If the chassis has two power supplies and one of them
fails, you do not have to power off the operational module to
replace the failed unit.
The AT-SBxPWRPOE1 AC Power Supply is also hot swappable.
The AT-SBxPWRSYS1 AC and DC Power Supplies are installed in
slots C and D on the front panel. If you are installing just one power
supply, you may install it in either slot. See Figure 4 on page 21.
slots C and D on the front panel. If you are installing just one power
supply, you may install it in either slot. See Figure 4 on page 21.
AT-SBxPWRPOE1 Power Supplies are installed in slots A and B.
The total number of powered devices the chassis can support on
the ports on AT-SBx31GP24 PoE Line Cards depends on the
number of AT-SBxPWRPOE1 Power Supplies in the chassis and
the power requirements of the devices. For instance, a chassis can
support 40 ports of Class 4, PoE+ (IEEE 802.3at) powered devices
with one power supply or 80 ports with two power supplies. For
further information, refer to Table 4 on page 40.
the ports on AT-SBx31GP24 PoE Line Cards depends on the
number of AT-SBxPWRPOE1 Power Supplies in the chassis and
the power requirements of the devices. For instance, a chassis can
support 40 ports of Class 4, PoE+ (IEEE 802.3at) powered devices
with one power supply or 80 ports with two power supplies. For
further information, refer to Table 4 on page 40.