Features - 3Com 7750 User Manual

PoE Power Rack Installation Guide
The PoE Power Rack is configured with one power supply module as standard. The power rack may be
configured with up to 3 power supplies based on the power and power redundancy requirements.

Features

The PoE Power Rack is compatible with a wide range of input voltages from 90 to 290 VAC and uses 20
A/250 VAC EN60320 C20/C19 appliance coupler connectors and connector plugs.
Power factor is above 0.99 and efficiency is over 88%
Maximum device output is (N + 1) 93A @ 54VDC
Power supply modules are hot-swappable for uninterrupted operation
The PoE Power Rack power status may be monitored via RS232 or RS485 interface
Advanced EMC design
High Safety and reliability
(1) (1)
Figure 1-2 PoE Power Rack configured with two power supply modules (I)
(1)
(1): AC Input Socket
(3): RS232 and RS485
Figure 1-3 PoE Power rear view (II)
(1): PoE Power Rack
(2)
(2): DC Output
(4): Chassis Ground
(3)
(4)
2-2
Introduction