Comtech EF Data CDM-570A User Manual
Page 82
CDM-570A/570AL Satellite Modem with Optional Packet Processor
MN-CDM570A
Rear Panel Connectors and Pinouts
Revision 2
3–20
1.
Plug the user-supplied, male keyed DC power lead connector into the mating female
connector until the lock tab engages. Number 18 AWG minimum wires are recommended.
2.
Connect the user-supplied DC power leads to the power source.
3.
Energize the DC power source to turn the modem ON.
3.3.3.2.2 Optional DC Operation – Replace the DC Power Fuses
For optional DC operation, the modem requires two different fuses that are contained within
the press-fit fuse holder.
Figure 3-11. Replace the Optional DC Chassis Fuses
Do these steps (Figure 3-11):
WARNING! DISCONNECT THE POWER SUPPLY BEFORE PROCEEDING!
1.
Unseat the fuse holder from the IEC power module:
•
Pry the holder outward from the module.
•
Pull the holder straight out, and then swing the holder away from the module.
2.
Remove and replace the 20mm Slo-Blo fuses as needed.
CAUTION – FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES
WITH THE CORRECT TYPE AND RATING.
•
Use T3.15A fuses for units without a BUC
•
Use T8A fuses for units with a BUC.
3.
Reseat the fuse holder in the IEC power module.