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13
CHAPTER 3: Configuration
installed settings, JP1 links RJ-45 Pin 3 to the coax TX
shield, while JP2 links RJ-45 Pin 6 to the coax RX shield.
To remove these jumpers in order to break these
links, you’ll need to open the case of your Adapter or
temporarily remove each port-card module from your
Balun Mate II. Follow these steps, taking all reasonable
precautions against static electricity:
1. Make sure that the Adapter or module is
disconnected from all cables and from all other
devices.
2A. If you’re setting the jumpers on an Adapter, insert a flat-
blade screwdriver into the slot on the side of the
Adapter’s case and twist. The case will pop open,
exposing the circuit board.
2B. If you’re setting the jumpers on a Balun Mate II module,
unscrew the nuts and washers on the module from
the two screwposts embedded in the chassis’ front
panel. (You might need a nutdriver to do this.)
Once this is done, carefully slide the module out
of the back of the rack chassis.