Optional -48V Dc Operation - Replace The Fuse; Figure 3-11. Replace The Mbt-5000 Dc Fuse - Comtech EF Data MBT-5000 User's Installation And Operation Manual

MBT-5000 L-Band Up/Down Converter System
Rear Panel Connections
3.3.3.2 Optional -48V DC Operation – Replace the Fuse
WARNING! DISCONNECT THE POWER SUPPLY BEFORE PROCEEDING!
CAUTION – FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
THE CORRECT TYPE AND RATING.
The optional -48V DC MBT-5000 uses a single 20mm slow-blow fuse. A latched fuse holder is
located on the rear panel, on the DC power supply (terminal block) module (Figure 3-11).
To replace the DC fuse, do these steps:
• First, press on the fuse holder cover, where shown in Figure 3-11, to unlatch the cover. Pull
out the fuse carrier from its receptacle, and then swing out as shown.
•
Then, remove and replace the fuse (the fuse carrier features a cradle that stores a spare
fuse):
o Use 3.15 Amp 5 x 20mm slow-blow fuses for standard operation
•
Finally, swing back, and then push the fuse carrier back into its receptacle. Continue to push
in until the cover latch clicks back into its locked position.

Figure 3-11. Replace the MBT-5000 DC Fuse

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MN-MBT5000
Revision 4