Brocade FastIron SX Series Chassis Hardware Installation Guide - Manual (Page 44)

devices that one 52- 54-volt power supply can support depends on the number of watts
required by each power-consuming device. Each 52- 54-volt power supply can provide a
maximum of 1080 watts of PoE power, and each PoE+ port supports a maximum of 30
watts of power per PoE+ power-consuming device. For example, if each PoE+ power-
consuming device attached to the Brocade device consumes 30 watts of power, one 52-
54-volt supply will power up to 36 PoE+ ports. You can install a second 52- 54-volt
supply for additional PoE+ power.
‐ The 52- 54-volt (220-volt input only) PoE+ power supplies provide power to the PoE+
daughter card, and ultimately to PoE+ power-consuming devices. The number of PoE+
power-consuming devices that one 220-volt power supply can support depends on the
number of watts required by each power-consuming device. Each 220-volt power supply
can provide a maximum of 2260 watts of PoE+ power, and each PoE+ port supports a
maximum of 30 watts of power per PoE+ power-consuming device. For example, if each
PoE+ power-consuming device attached to the Brocade device consumes 30 watts of
power, one 220-volt supply will power up to 75 PoE+ ports. You can install a second
220-volt supply for additional PoE+ power.
NOTE
The system activates as many PoE+ ports as the 52- 54-volt PoE power supplies can handle. The
system calculates the maximum number of PoE+ ports it can support based on the number of PoE+
power supplies installed. PoE+ ports are enabled based on their priority settings. The system reserves
the maximum configured power per PoE+ enabled port, even if the PoE+ power-consuming device is
drawing less power.
CAUTION
The PoE+ power supply is designed exclusively for use with the FastIron X Series PoE+
chassis devices. The power supply produces extensive power to support 802.3at applications.
Installing the power supply in a device other than the FastIron X Series PoE device will cause
extensive damage to your equipment.
All power supplies are auto-sensing and auto-switching.
Power supplies are installed in the slots along the bottom of the device.
In FSX 800 devices, the 12-volt (system) power supplies occupy slot numbers 3 and 4 on the right,
with the redundant supply in slot 4. PoE power supplies occupy slot numbers 1 and 2 on the left.
FIGURE 15 Power supply placement in the FSX 800
Hardware features
42 Brocade FastIron SX Series Chassis Hardware Installation Guide
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