Acc Socket - Icom iC-7850 Instruction Manual

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20
CONNECTOR INFORMATION

■ ACC socket

Connects to external equipment or a personal com-
puter to control the external unit or to control the trans-
ceiver.
Sockets [A ACC1] and [A ACC2] output AF signals of
the MAIN band, sockets [B ACC1] and [B ACC2] out-
put AF signals of the SUB band.
ACC 1 PIN No.
1
2
3
2
4
5
3
1
8
4
6
7
(Rear panel view) 5
6
7
8
ACC 2 PIN No.
1
2
2
3
4
5
3
1
4
6
7
5
(Rear panel view)
6
7
NAME DESCRIPTION
RTTY
Controls RTTY keying
GND
Connects to ground.
An external equipment
controls the transceiver.
Input/output
When this pin goes low,
pin.
the transceiver transmits.
SEND*
Connected in
parallel with
The pin outputs a low lev-
ACC 2 pin 3.
el signal when the trans-
ceiver transmits.
Modulator input.
MOD Connects to the internal modulator
circuit.
Fixed AF detector or receive IF (12 kHz)
AF/ IF
signal output.
(IF=12 kHz)
Squelch output.
SQLS
Grounded when the squelch opens.
15V output when power is ON.
15V
Connected in parallel with ACC 2 pin 7.
ALC voltage input.
ALC
Connected in parallel with ACC 2 pin 5.
NAME DESCRIPTION
8 V
Regulated 8 V output.
GND Same as ACC 1 pin 2.
SEND* Same as ACC 1 pin 3.
Band voltage output.
BAND
(Varies with the selected amateur band)
ALC Same as ACC 1 pin 8.
Activates [X-VERTER] input/output
TRV
when "HIGH" voltage is applied
15V Same as ACC 1 pin 7.
B
(Rear panel view)
"High level":
"Low level":
Output current:
Connected in parallel with ACC 2 pin 2.
Input voltage (TX):
Input voltage (RX):
Current flow:
Output voltage (TX):
Current flow:
Input impedance:
Output level:
Output impedance:
Output level:
SQL open:
SQL closed:
Output current:
Input impedance:
Input level:
Output voltage:
Output current:
Output voltage:
Input impedance:
Input voltage:
20-2
SPECIFICATIONS
More than 2.4 V
Less than 0.6 V
Less than 2 mA
–0.5 V to 0.8 V
2.0 V to 20.0 V
Maximum 20 mA
Less than 0.1 V
Maximum 200 mA
10 kΩ
Approximately 100 mV rms
4.7 kΩ
100–300 mV rms
Less than 0.3 V/5 mA
More than 6.0 V/100 µA
Max. 1 A
More than 10 kΩ
–4 V to 0 V
SPECIFICATIONS
8 V ±0.3 V
Less than 10 mA
0 V to 8.0 V
More than 10 kΩ
2 V to 13.8 V