Elecraft KRC2 Manual - Manual (Page 16)

16
KRC2 Final Assembly
Place the case bottom onto the case top, aligning the screw holes at each end of the case. The
case may be a tight fit, but the two halves should slide into place without difficulty.
Using two 4 x 3/16” pan-head screws, secure the case bottom to the top.
Locate the four rubber stick-on feet. Remove the adhesive backing from each foot, and place
the foot securely into place in a corner of the case bottom about 1/8” in from each side.
K2 to KRC2 Control Cable Assembly
Locate the 8-conductor cable. Note: A shorter cable may be used as long as it accommodates
the physical orientation of the K2 and the KRC2. A longer cable can also be used, but it will have
to be tested to ensure that it is not subject to RF interference. A more heavily-shielded control
cable may be required. A standard shielded male-female DB9 straight-through cable has been
tested and should work well with the KRC2/K2 combination.
Remove 1/2" (12 mm) of the jacket from the cable at each end. Be very careful not to nick
the individual wires.
Peel back and cut away the foil shield.
Strip 3/16" (5 mm) of insulation from each insulated wire.
Twist the strands of each wire together. Tin lightly with solder.
Locate the male and female DB9 connectors.
Insert the female DB9 connector (KRC2 end) into the vise, with the solder cups facing up.
Solder the wires to the indicated connector pins at the KRC2 end of the cable as shown in
Figure 6. It may be helpful to melt some solder into each solder cup on the connector first.
Pin 1 Bare wire Pin 2 Orange Pin 3 Blue
Pin 4 Red w/ Black stripe Pin 5 White w/ Black stripe Pin 6 Green
Pin 7 White Pin 8 Red Pin 9 Black