Icom IC-9700 Instruction Manual basic - Page 90

13

13-1

CONNECTOR INFORMATION

[ACC]

Connects to external equipment or a PC to control an external unit or the transceiver.

*

2

You can change the MOD input level.

L

100 mV rms is at 50% as the default.

MENU

»

SET > Connectors >

ACC MOD Level

*

3

You can change the AF/IF

(IF=12 kHz)

settings to output a

12 kHz IF signal. In that case.

MENU

»

SET > Connectors >

ACC Output Select

*

4

You can change the AF/IF

(IF=12 kHz) output level

.

L

Approximately 200 mV rms is at the 50% as the

default.

MENU

»

SET > Connectors >

ACC IF Output Level

*

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

To a non-Icom

linear amplifier

Relay

Switching diode

e

SEND

u

13.8 V

ACC 1

PIN

No�

NAME

DESCRIPTION

SPECIFICATIONS

1

RTTY

Controls RTTY keying.

High level:

Low level:

Output current:

More than 2.4 V

Less than 0.6 V

Less than 2 mA

2

GND

Connects to ground.

–

3

SEND*

1

Input/output

pin.

An external unit controls

the transceiver.

When this pin goes to

ground, the transceiver

transmits.

Input voltage (RX):

Input voltage (TX):

Current flow:

2 ~ 20 V

–0.5 ~ +0.8 V

Maximum 20 mA

The pin goes low when

the transceiver transmits.

Output voltage (TX):

Current flow:

Less than 0.1 V

Maximum 200 mA

4

MOD

Modulator input.

Connects to the internal modulator circuit.

Input impedance:

Output level:

10 kΩ

Approx. 100 mV rms*

2

5

AF/IF

(IF=12 kHz)*

3

Fixed AF detector or receive IF (12 kHz)

signal output.

Output impedance:

Output level:

4.7 kΩ

100 ~ 300 mV rms

*

4

6

SQL S

Squelch output.

This pin goes to ground when the

squelch opens (TX/RX indicator lights

green).

SQL open:

SQL closed:

Less than 0.3 V/5 mA

More than 6.0 V/100 μA

7

13.8 V

13.8 V output when power is ON.

Output current:

Maximum 1A

8

ALC

ALC voltage input.

Input level:

Input impedance:

–4 ~ 0 V

More than 10 kΩ

8-pin

Rear panel view

1

2

3

4

5

6

7

8

[DC 13�8 V]

Accepts the regulated DC power

for 13.8 V DC ±15% through the

supplied DC power cable.

R

WARNING! NEVER

reverse the

DC power cable polarity.

Rear panel view

[PHONES]

Connects to standard stereo headphones:

•

Output impedance: 8 ~ 16 Ω

•

Output level:

More than 5 mW into an 8 Ω load.

L

The internal speaker is deactivated while an external

speaker is connected.

L

When high impedance headphones are used, the audio

output level may be too high.

L

You can change the headphone output setting.

MENU

»

SET > Connectors > Phones >

LR/ Mix

ACC MOD Level

Main band signal

Sub band signal

3.5 (d) mm (

1

/

8

in)

GND

Icom IC-9700 Instruction Manual basic - Page 90

Connector Information

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