13
CONNECTOR INFORMATION
ACC sockets
Connects to external equipment or a PC to control an external unit or the transceiver.
• ACC sockets
ACC 1
8-pin
2
5
4
3
1
8
6
7
Rear panel view
PIN
ACC 2
No.
7-pin
2
4
5
1
3
6
7
Rear panel view
*
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 1/2 socket
e SEND
u 13.8 V
Switching diode
PIN
NAME
No.
1
RTTY
Controls RTTY keying.
2
GND
Connects to ground.
Input/output
pin.
3
SEND*
1
Connected in
parallel with
ACC 2 pin 3.
Modulator input.
4
MOD
Connects to the internal modulator circuit.
AF/IF
Fixed AF detector or receive IF (12 kHz)
5
(IF=12 kHz)*
3
signal output.
Squelch output.
6
SQL S
Grounded when the squelch opens.
13.8 V output when power is ON.
7
13.8 V
Connected in parallel with ACC 2 pin 7.
ALC voltage input.
8
ALC
Connected in parallel with ACC 2 pin 5.
NAME
1
8 V
Regulated 8 V output.
2
GND
Connects to ground (Same as ACC 1 pin 2).
3
SEND*
1
Same as ACC 1 pin 3.
Band voltage output.
4
BAND
(Varies with the selected amateur band)
5
ALC
Same as ACC 1 pin 8.
Activates [X-VERTER] input/output when
6
TRV
"HIGH" voltage is applied.
7
13.8 V
Same as ACC 1 pin 7.
To a non-Icom
linear amplifier
Relay
DESCRIPTION
An external unit controls
the transceiver.
When this pin goes to
ground, the transceiver
transmits.
The pin goes low when
the transceiver transmits.
DESCRIPTION
*
2
You can change the MOD input level.
L100 mV rms is at 50% as the default.
»
SET > Connectors > ACC MOD Level
MENU
*
3
You can change the AF/IF (IF=12 kHz) settings to output a
12 kHz IF signal. In that case, you can listen to the DRM
broadcast with the application software receiver that is
installed onto your PC.
»
SET > Connectors > ACC Output Select
MENU
»
SET > Connectors > USB Output Select
MENU
»
SET > Connectors > LAN Output Select
MENU
*
4
You can change the AF/IF (IF=12 kHz) output level.
L Approximately 200 mV rms is at the 50% as the
default.
»
SET > Connectors > ACC IF Output Level
MENU
»
SET > Connectors > USB IF Output Level
MENU
13-2
SPECIFICATIONS
High level:
More than 2.4 V
Low level:
Less than 0.6 V
Output current:
Less than 2 mA
Connected in parallel with ACC 2 pin 2.
Input voltage (RX):
2.0 ~ 20.0 V
Input voltage (TX):
–0.5 ~ +0.8 V
Current flow:
Maximum 20 mA
Output voltage (TX):
Less than 0.1 V
Current flow:
Maximum 200 mA
Input impedance:
10 kΩ
Output level:
Approx. 100 mV rms*
Output impedance:
4.7 kΩ
Output level:
100 ~ 300 mV rms*
SQL open:
Less than 0.3 V/5 mA
SQL closed:
More than 6.0 V/100 μA
Output current:
Maximum 1A
Input level:
–4 ~ 0 V
Input impedance:
More than 10 kΩ
SPECIFICATIONS
Output voltage:
8 V ±0.3 V
Output current:
Less than 10 mA
Output voltage:
0 ~ 8.0 V
Input impedance:
More than 10 kΩ
Input voltage:
2 ~ 13.8 V
2
4
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