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5 power / ground connections, 1 alternating current power connector, Direct current (dc) power connector (optional) – Comtech EF Data CDM-740 User Manual

Page 48: 3 chassis ground connector, 2 direct current (dc) power connector (optional)

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CDM-740 Advanced Satellite Modem

Revision 0

Rear Panel Connector Pinouts

MN-CDM740

3–6

3.5

Power / Ground Connections

3.5.1

Alternating Current Power Connector

A standard, detachable, non-locking, 3-prong power cord (IEC
plug) supplies the Alternating Current (AC) power to the modem
via this connector.

Note the following:

AC Power Specifications

Input Power

40W maximum, 20W typical

Input Voltage

100 - 240 volts AC, +6%/-10% - autosensing
(total absolute max. range is 90 - 254 volts AC)

Connector Type

IEC

Fuse Protection

5.0A Slow-blow (115 volt AC operation)
2.5A Slow-blow (230 volt AC operation)
Line and neutral fusing
(2) 20 mm type fuses

3.5.2

Direct Current (DC) Power Connector (Optional)

This optional connector supplies the Direct Current (DC) power to
the modem.



Note the following:

DC Power Specifications

Input Power

48 watts (typical)
55 watts (maximum)

Input Voltage

48 volts DC, nominal
(36 volts to 60 volts)

Connector Type

Corcom PS series

Mating Connector

Corcom GA210 or Molex 03-12-1026

Fuse Protection

8A Slow-blow
Line and neutral fusing
(2) 20 mm type fuses

3.5.3

Chassis Ground Connector

A #10-32 stud adjacent to the power connector is used for connecting a common
chassis ground among equipment.

Note: The AC power connector provides the safety ground.