Acc(L)Socketinformation; Aqssocket Information - Icom IC-1275A Instruction Manual

3 INTERCONNECTIONS
3-4 ACC(1) socket information
The transceiver switches to transmit
mode when this terminal is grounded.
It is grounded when [ XMIT] is placed
in the IN position.
Connected in the modulator stage.
The modulator amplification level
can be changed by using the switch
S1. See р. 25 for the location of this
switch.
Output from the receive detector
The output level can be
changed by using the switch S2 on
the MAIN UNIT. See p. 25 for the
location of this switch.
Squelch output. Goes to ground
when squelch opens.
13.8 V DC output is switched by
[POWER] оп the front panel.
Maximum current capacity is 1 A.
line for audio output and
microphone input. The terminal is
"LOW" while muting.
Valid signal output for CAC (Channel
Access) function. The terminal is
"HIGH" when the CAC function is
activated.
Output from the receive detector
stage.
PTT Connected to the PTT circuit. The
terminal is "LOW'' when transmitting.
This is an input terminal that the
transceiver switches to in transmit
mode when the terminal is "LOW."
ВВ
When searching an empty channel,
the terminal is "LOW."
Demodulator ground.
This is the CPU I/O terminal for set-
с :
ting the frequency and mode.
го | NC чо connection CS
When receiving a signal, this terminal
RECV is "LOW."
8
Г е з а [Transceve function [ON
3-6 CI-V remote control jack
information
The 1C-1275A/E can be connected through an optional
CT-17 CI-V LEVEL CONVERTER to a personal computer
equipped with an RS-232C port. An Icom Communication
Interface-V (CI-V) System controls frequency, mode,
memory channel information, etc.
(1) CT-17 connection
Up to 4 Icom СІ-М transceivers can be connected to a
personal computer via the CT-17.
(2) CI-V condition
(Switches S3 on the LOGIC UNIT)
12345678910
UTERE
ШШШ j
Switches S3 ON
See p. 25
for S3 location. OFF
1248124
p
Address : 18H
Transceive : ON
Baud rate : 1200 bps
53-177 18H (24)
1200 bps
53-9 — 10 CI-V baud rate. See the table
below.
(3) CT-16 connection