Operation Manual

1
PANEL DESCRIPTION
1-16
Main unit — Rear panel (Continued)
ACC socket information D
• 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
HSEND
*
1, 2
Input/out-
put pin.
An external equipment
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
Maximum 20 mA
The transceiver outputs
a low signal to control
external equipment.
Output voltage (Low):
Current flow:
Less than 0.1 V
Maximum 200 mA
4 BDT
Data line for the optional AT-180. ———
5
NC
(BAND*
3
)
*
3
If the modification is performed,
band voltage output. (AI sec. 19)
———
Output voltage: 0 to 8 V
6 ALC
ALC voltage input.
Control voltage:
Input impedance:
–4 V to 0 V
More than 3.3 k˘
7
VSEND
*
1, 2
Input/out-
put pin.
An external equipment
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
Maximum 20 mA
The transceiver outputs
a low signal to control
external equipment.
Output voltage (Low):
Current flow:
Less than 0.1 V
Maximum 200 mA
8 13.8 V
13.8 V output when power is ON.
Output current: Less than 1 A
9 TKEY Key line for the optional AT-180. ———
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*
3
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
*
1
When the SEND terminal controls the 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.
eHSEND or
uVSEND
i13.8 V
ACC socket
Relay
Switching diode
To a non-Icom
linear amplifier
[Example]
*
2
VSEND is used for the 144 MHz and 430 MHz bands, and HSEND is used for the HF, 50/70 MHz bands by default.
You can change this setting in “VSEND Select” of the “Connectors” Set mode. (p. 6-8)
SET
> Connectors > VSEND Select
*
3
You can change this setting in “ACC/USB Output Select” of the “Connectors” Set mode. (p. 6-8)
SET
> Connectors > ACC/USB Output Select