Acc] - Icom IC-9700 Basic Manual

13
CONNECTOR INFORMATION

[ACC]

Connects to external equipment or a PC to control an external unit or the transceiver.
PIN
ACC 1
No�
1
2
3
8-pin
2
5
4
4
1 3
8
6 7
5
Rear panel view
6
7
8
* 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
u 13.8 V
Relay
Switching diode
[DC 13�8 V]
Accepts the regulated DC power
for 13.8 V DC ±15% through the
supplied DC power cable.
RWARNING! NEVER reverse the
DC power cable polarity.
Rear panel view
NAME DESCRIPTION
RTTY Controls RTTY keying.
GND Connects to ground.
Input/output
SEND* 1
pin.
Modulator input.
MOD
Connects to the internal modulator circuit.
AF/IF Fixed AF detector or receive IF (12 kHz)
(IF=12 kHz)* 3 signal output.
Squelch output.
This pin goes to ground when the
SQL S
squelch opens (TX/RX indicator lights
green).
13.8 V 13.8 V output when power is ON.
ALC ALC voltage input.
To a non-Icom
linear amplifier
High level:
Low level:
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 when Output voltage (TX):
the transceiver transmits. Current flow:
Input impedance:
Output level:
Output impedance:
Output level:
SQL open:
SQL closed:
Output current:
Input level:
Input impedance:
* 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.
»
SET > Connectors > ACC 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
[PHONES]
Connects to standard stereo headphones:
• Output impedance: 8 ~ 16 Ω
• Output level:
3.5 (d) mm (
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.
LYou can change the headphone output setting.
» SET > Connectors > Phones >
MENU
LR/ Mix ACC MOD Level
13-1
SPECIFICATIONS
More than 2.4 V
Less than 0.6 V
Less than 2 mA
–
2 ~ 20 V
–0.5 ~ +0.8 V
Maximum 20 mA
Less than 0.1 V
Maximum 200 mA
10 kΩ
Approx. 100 mV rms*
4.7 kΩ
100 ~ 300 mV rms*
Less than 0.3 V/5 mA
More than 6.0 V/100 μA
Maximum 1A
–4 ~ 0 V
More than 10 kΩ
More than 5 mW into an 8 Ω load.
Sub band signal
1 / in)
8
GND
Main band signal
2
4