Comtech EF Data CDM-570 - Manual (Page 76)

CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Rear Panel Connectors and Pinouts MN/CDM570L.IOM
3–12
3.5.2.2 48 V DC Units – CDMR-570L Unit Only
This optional connection supplies the 48V Direct Current (DC)
power to the CDMR-570L modem.
Note the following:
DC Power Specifications
Input Power 48 watts typical, 55 watts maximum
Input Voltage 48 volts DC nominal (43 volts to 60 volts)
Connector Type Terminal Block
Fuse Protection Use one (1X) Slow-Blow TR5 type fuse – fuse is contained within a screw-in receptacle
located to the left of the terminal block:
• Use a TR5 6.3A fuse for all CDMR-570L units ( with or without BUC)
3.5.3 Ground Connector
PROPER GROUNDING PROTECTION REQUIRED: The installation instructions
require that the integrity of the protective earth must be ensured and that the
equipment shall be connected to the protective earth connection at all times.
Therefore, it is imperative during installation, configuration, and operation to
ensure that the unit has been properly grounded using the ground stud provided
on the rear panel of the unit.
A #10-32 stud provided on the rear panel of the modem is used for connecting a
common chassis ground among equipment.
Note: The AC power connector provides the safety ground.