Dataequipmentinterface(Acc 2) - Kenwood TRC-80 Instruction Manual

DATAEQUIPMENT INTERFACE (ACC2)
The ACC 2 connector allows connection of a Terminal Node Controller (TNC) or a Multimode Communications
Processor (MCP) for data communications.
6 PKS
7 PKD
8 PKDG
Function
Not connected
RTTY modulation (input)
.
Connect the transmit lead from your RTTY equipment for FSK operation.
Fixed-level audio from receiver (output) .
Connect to TNC or MCP receive data lead.
.
Audio level is independent of VOLUME control setting.
Chassis ground
Squelch control
.
Connect to TNC or MCP squelch control pin.
.
Preventsthe TNC/MCP from transmittingwhile the receiver squelch is open.
.
Squelchopen: High impedance
Squelch closed: Low impedance
Radiotelephone PTT line control .
Connect to TNC or MCP transmit/receive switching pin.
.
Microphone audio input at the MIC pin on the Front Panel MIC connector is muted
when in transmit mode.
Microphone audio (input)
.
Connect the transmit lead from your TNC or MCP for AFSK operation.
Shield for Pin 7.
@
~
@
CD G)
@ (2)
@
ACC 2 connector
(Rear Panel view)
18
PinNo. I
PinName
-
1 NC
2 RTK
3 ANO
4 GND
5 PSQ