Comtech EF Data cdm-570a - Optional -24 V or -48 V DC Chassis Power and Fusing; Figure 3-10. Apply Power to the Optional DC Chassis; Figure 3-9. Modem Optional DC Chassis (CDM-570 AL-IP Shown); Optional DC Operation - Apply Power

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Rear Panel Connectors and Pinouts 3–19 MN-CDM570A
3.3.3.2 Optional -24V or -48V DC Chassis Power and Fusing
Feature
Description
1
Power Cord Connector
2
Press Fit Fuse Holder
Figure 3-9. Modem Optional DC Chassis (CDM-570AL-IP shown)
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
3.3.3.2.1 Optional DC Operation – Apply Power
Figure 3-10. Apply Power to the Optional DC Chassis