Table 1-1: Power Supply Input - PictureTel Concorde 4500 Servicing Manual

The following illustration shows the power supply.
Figure 1-6: Power Supply
The power supply accepts either 110 volts AC (VAC) or 220 volts
VAC without using a switch or jumper. The following table
describes the acceptable minimum and maximum input voltages for
the power supply.

Table 1-1: Power Supply Input

Input Voltage
Input voltage in
110-volt mode
Input voltage in
220-volt mode
The frequency range of the power supply is 47 Hertz (Hz) to 63 Hz.
Minimum Voltage
85 volts root mean
square (Vrms)
180 Vrms
Electronics Module
Power
supply
Maximum Maximum In-
Voltage Rush Current
132 Vrms 35 amps
264 Vrms (Not applicable)
1-9