Comtech EF Data CDM-570A - Manual (Page 81)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
Rear Panel Connectors and Pinouts Revision 2
3–19
3.3.3.2 Optional -24V or -48V DC Chassis Power and Fusing
Feature Description
1 Power Cord Connector
2 Press Fit Fuse Holder
DC Power Specifications
Input Power
-48V • Without optional Packet Processor or CnC: 29W typical, 32W maximum
• With optional Packet Processor, without CnC: 42W typical
• With optional Packet Processor and CnC: 48W maximum
-24V
Input Voltage
-48V 48V DC nominal (43-60V)
-24V 24V DC nominal (20-36V)
Modem Connector Type Corcom PS series
User Mating Connector Corcom GA210 or Molex 03-12-1026
Fuse Protection
Use two (2X) 20mm Slo-Blo fuses for positive and return fusing. Fuses are contained
within a fuse holder that is press-fit into the body of the IEC power module:
• Use T5.0A fuses for units without a BUC
• Use T8A fuses for units with a BUC
Figure 3-9. Modem Optional DC Chassis (CDM-570AL-IP shown)
3.3.3.2.1 Optional DC Operation – Apply Power
Figure 3-10. Apply Power to the Optional DC Chassis
Do these steps (Figure 3-10):
WARNING! ENSURE THAT THE POWER IS REMOVED FROM THE DC CIRCUIT BEFORE
PROCEEDING!