Connector Information; Acc Socket - Icom IC-7300 Basic Manual

12

CONNECTOR INFORMATION

ACC socket

Connects to external equipment or a PC to control the
external unit or to control the transceiver.
• ACC socket
PIN
ACC
No.
1
13-pin
2
13
9 10 11 12
5 6 7 8
3
1 2 3 4
Rear panel view
4
q brown i gray
w red o white
5
e orange !0 black
r yellow !1 pink
t green !2 light
6
y blue blue
!3 light
u purple
7
green
8
9
Color refers to the
cable strands of the
10
supplied cable.
11
12
13
* 1 When the SEND terminal controls an inductive load, such
as a relay, a counter-electromotive force can malfunction
or damage the transceiver. To prevent this, we recommend
adding a switching diode, such as an 1SS133, on the load
side of the circuit to absorb the counter-electromotive force.
When the diode is added, a delay in relay switching may
occur. Be sure to check its switching action before operating.
(Example) ACC socket
e SEND
i 13.8 V
Relay
Switching diode
NAME DESCRIPTION
Regulated 8 V output.
8 V ( Used as the reference voltage for the
band voltage.)
GND Connects to ground.
Input/output
SEND* 1
pin.
BDT Not used.
Band voltage output.
BAND ( Varies with the selected amateur
band)
ALC ALC voltage input.
NC
13.8 V 13.8 V output when power is ON.
TKEY Not used.
FSKK Controls RTTY keying.
MOD Modulator input.
AF/IF Fixed AF detector or receive IF
(IF=12 kHz)* 2 (12 kHz) signal output.
Squelch output.
SQL S
Grounded when the squelch opens.
To a non-Icom
linear amplifier
Output voltage:
Output current:
An external unit
controls the transceiver. Input voltage (RX):
When this pin goes to Input voltage (TX):
ground, the transceiver Current flow:
transmits.
The pin goes low
Output voltage (TX):
when the transceiver
Current flow:
transmits.
Output voltage:
Input level:
Input impedance:
—
Output current:
High level:
Low level:
Output current:
Input impedance:
Input level:
Output impedance:
Output level:
SQL open:
SQL closed:
* 2 You can change the pin 12 setting in the "ACC/USB
Output Select" item on the CONNECTORS set screen.
If the pin is set to IF, the transceiver outputs a 12 kHz IF
signal from [ACC]. In that case, you can listen to the DRM
broadcast with the application software receiver that is
installed into your PC.
* 3 You can change the input level in the "ACC MOD Level"
item on the CONNECTORS set screen. (p. 8-5)
100 mV rms is at the 50% (default) setting.
* 4 You can change the output level in the "ACC/USB AF
Output Level" item on the CONNECTORS set screen.
(p. 8-5)
Approximately 200 mV rms is at the 50% (default) setting.
12-1
SPECIFICATIONS
8 V ±0.3 V
Less than 10 mA
—
2.0 to 20.0 V
–0.5 to +0.8 V
Maximum 20 mA
Less than 0.1 V
Maximum 200 mA
—
0 to 8.0 V
–4 to 0 V
More than 3.3 kΩ
—
Maximum 1 A
—
More than 2.4 V
Less than 0.6 V
Less than 2 mA
10 kΩ
100 mV rms* 3
4.7 kΩ
100 ~ 300 mV rms* 4
Less than 0.3 V/5 mA
More than 6.0 V/100 μA