Kantronics KPC-9612 Plus, Руководство пользователя, Страница: 74 / 348

Port 2: Connecting to a “High Speed” Radio
The final step in connecting your 9612 Plus is to make a cable to go from the
9612 Plus, port 2, to your high speed radio. This is optional, of course, since you
can operate the unit using only port 1 and running 1200 baud.
NOTE: High speed operation (running 4800; 9600; 19,200; or 38,400 baud) re-
quires a radio capable of running the selected speed. Not all radios are capable of
being modified for 4800 or 9600, let alone 19,200 or above. Most major tranceiver
manufacturers now make available “data ready” radios said to be 9600 baud ready,
which include a data jack.
Connections to a radio for higher speed operation (e.g., 9600 baud) are made
through the DB-15 connector on the KPC-9612 Plus rear panel. In order to trans-
mit and receive at high speed, you must connect the following pins to your radio:
paste in DB-15 connector diagram [top:8 - 1],[ bottom: 15 to 9]
DB-15
The pin assignments for the DB-15 connector on port 2 are as follows:
Pin 1 (PTT) Push - to - Talk. This pin connects to the PTT pin on your radio
and causes the radio to transmit when the TNC has data to send. Your radio may
have a different name for this pin (e.g. STBY), but the function as described in
you radio manual should indicate that grounding this pin will cause the radio to
transmit.
Pin 2 (RXA) Receive Data. This pin connects to the high speed data output pin
of your radio.
Pin 3 (TXA) Transmit Data. This pin connects to the modulator stage of the ra-
dio. Those radios that are “9600-ready” may identify this pin as the 9600 baud
data input from your TNC.
Installing Your KPC-9612 Plus Port 2: Connecting to a “High Speed” Radio
User’s Guide 58 KPC-9612 Plus v 8.2