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Appendix A: Advanced Installation
This appendix gives you additional information on installation and configuration beyond
that given in the chapter on “Installing your KPC-3 Plus”. We assume you have
already read that chapter.
Precautions
The KPC-3 Plus is grounded through its connections to your transceiver, computer, and
power supply. Make sure your transceiver is properly grounded and your computer has
equal ground potential. Follow the grounding instructions in your transceiver manual.
The multi-conductor cable provided with your KPC-3 Plus is shielded. If you use other
cabling, be certain it is shielded. We do not recommend the use of unshielded RS232
ribbon cable in an amateur radio environment.
Lithium batteries can explode or leak if heated, disassembled, recharged, exposed to
fire or high temperature, or inserted incorrectly.
Cable Wiring
Caution: Make sure the power to the transceiver, computer, and KPC-3 Plus is OFF
before connecting any cables.
The KPC-3 Plus uses a standard RS232 serial port with a DSUB-25 connector
configured as DCE equipment.
Diagram of Pin Numbers on DSUB-25 Connector
The following diagram shows the pin numbering on the DSUB-25 connector looking at
the back of the KPC-3 Plus:
Connecting to the Computer (DSUB-25)
The KPC-3 Plus communicates with the computer using RS232 signaling. This is
compatible with PC compatible computers, Macintosh, dumb terminal, and most other
terminal devices. If your computer or terminal uses TTL levels (such as the Commodore
64), you will need an after-market converter to supply the RS232 signals required by the
KPC-3 Plus.
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