Icom IC-i7410 - D ACC Socket Information

10
1
PANEL DESCRIPTION
1
2
3
4
5
6
7
8
9
10
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15
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19
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D ACC socket information
• ACC socket
ACC PIN No. NAME DESCRIPTION SPECIFICATIONS
1234
8765
9
10 11 12
13
Rear panel view
Color refers to
the cable strands
of the supplied
cable.
q brown
w red
e orange
r yellow
t green
y blue
u purple
i
o
!0
!1
!2
!3
gray
white
black
pink
light
blue
light
green
1 8 V
Regulated 8 V output.
Output voltage
Output current
: 8 V ± 0.3 V
: Less than 10 mA
2 GND
Connects to ground. ———
3
SEND*
Input/out-
put pin.
An external unit controls
the transceiver.
When this pin goes low,
the transceiver transmits.
Input voltage (High)
Input voltage (Low)
Current flow
: 2.0 V to 20.0 V
: –0.5 V to +0.8 V
: Max. 20 mA
The transceiver outputs
a low signal to control an
external unit.
Output voltage (Low)
Current flow
: Less than 0.1 V
: Max. 200 mA
4 NC
——— ———
5 BAND
Band voltage output.
Output voltage : 0 V to 8 V
6 ALC
ALC voltage input.
Control voltage
Input impedance
: –3 V to 0 V
: More than 3.3 k˘
7 NC ——— ———
8 13.8 V 13.8 V output when power is ON. Output current : Less than 1 A
9 NC ——— ———
10 FSKK
Controls RTTY keying
“High” level
“Low” level
Output current
: More than 2.4 V
: Less than 0.6 V
: Less than 2 mA
11 MOD
Modulator input.
Input impedance
Input level
: 10 k˘
: Approx. 100 mV rms
12 AF
AF detector output.
Fixed level, regardless of the [AF]
control position.
Output impedance
Output level
: 4.7 k˘
: 100 to 300 mV rms
13 SQL S
Squelch output.
Grounded when squelch opens.
SQL open
SQL closed
: Less than 0.3 V/5 mA
: More than 6.0 V/100 µA
* When the SEND terminal controls an inductive load (such as a relay), a counter-electromotive force can cause
the transceiver’s malfunction or damage. To prevent this, we recommend adding a switching diode, such as an
“1SS133,” on the load side of the circuit to the counter-electromotive force absorption.
When the diode is added, a switching delay of the relay may occur. Be sure to check its switching action before
operation.
eSEND
i13.8 V
ACC
socket
Relay
Switching diode
To a non-Icom
linear amplifier
[Example]
8
1
2
3
4
7
6
5
1
2
3
4
7
6
5
qwer
tyui
o!0!1!2
!3
Connect to ACC socket ACC 1 ACC 2
q FSKK
w GND
e SEND
r MOD
t AF
y SQL S
u 13.8 V
i ALC
q 8 V
w GND
e SEND
r BAND
t ALC
y NC
u 13.8 V
• When connecting the ACC conversion cable (OPC-599)