Data Connector Pinout - Kenwood TM-733A Instruction Manual

m DATA Connector Pinout
Pin
Number
Function
Packet data input
+ Transmit data from TNC to
transceiver
Ground for PKD
Packet standby
+ TNC can use this pin to
inhibit the transceiver
microphone input while
transmitting packet signals.
Detects 9600 bps data.
(500 mVp-p/10 kQ)
Detects 1200 bps data.
(300 MVp-p/10 kQ)
Note: See
Sane control output
Inhibits TNC data transmit
while transceiver squelch is
open.
Prevents interference to voice
communications on the same
frequency. Also prevents
retries.
Output level
Open squelch: +5 V (High)
Closed squelch: 0 V (Low)
"REMOVING THE DATA CONNECTOR COVER"
{page 111} to access the DATA connector on the Front Panel.
Personal computer/dumb terminal
TNC power supply RS-232C cable
DATA connector