Figure 3-12. Replacing Cdm-625A Optional Dc Chassis Fuses; Optional Dc Operation - Replacing Fuses - Comtech EF Data CDM-625A Installation And Operation Manual

CDM-625A Advanced Satellite Modem
Rear Panel Connectors and Pinouts
3.3.3.3 Optional DC Operation – Replacing Fuses
For DC operation the CDM-625A requires two different fuses that are contained within the
individual screw-in receptacles below the terminal block (located on the rear panel, Figure
3-12).

Figure 3-12. Replacing CDM-625A Optional DC Chassis Fuses

To replace the fuses:
DISCONNECT THE POWER SUPPLY BEFORE PROCEEDING!
• First, unscrew either fuse holder from its receptacle. Then, remove and replace the modem
and/or the BUC fuse(s):
o Use T3A (3 Amp) 250V fuses for modem operation (left-hand receptacle).
o Use T6.3A (6.3 Amp) 250V fuses when a Block Upconverter (BUC) is installed (right-hand
receptacle).
•
Screw either fuse holder back into its receptacle.
FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
THE CORRECT TYPE AND RATING.
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MN-CDM625A