Comtech EF Data CDM-740, Installation And Operation Manual

Page: 48 / 150

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.