Polycom DOC2238A - Manual (Page 93)

MGC+ Hardware and Installation Manual
4-13
Power Supply Module
Both MGC+ units (MGC+100 and MGC+50) operate at 100-240 volts
AC 50/60 Hz.
Power Module in the MGC+100
Three redundant power supplies provide backup for the system to ensure
multipoint service is not interrupted as a result of any single power supply
failure. The Power Supply Modules are hot swappable and connect to the
Powerplane, which is part of the Backplane.
The power supply automatically senses the AC input voltage.
Two Power Supply Modules are required to power a full system.
Three Power Supply Modules are installed on the MGC+, with one power
supply providing redundancy. Should one power supply fail the other two
power modules are sufficient to power the MCU.
The capacity of each power supply module is shown in Table 4-1.
Table 4-2: MGC+100 Power supply modules capacity
Voltage (V) Maximum current (Amp.)
5 90
12 6.5
-12 1