ICOM 301500 ユーザーズマニュアル

10

D ACC socket information

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2

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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

NC

———

———

2

GND

Connects to ground.

———

3

HSEND

Input/output pin.
Grounded when transmits.

Ground level
Output current
Input current (Tx)

: –0.5 V to 0.8 V
: Less than 20 mA
: Less than 200 mA

4

BDT

Data line for the optional AT-180.

———

5

NC

———

———

6

ALC

ALC voltage input.

Control voltage
Input impedance

: –4 V to 0 V
: More than 10 k

˘

7

NC

———

———

8

13.8 V

13.8 V output when power is ON. Output current

: Max. 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

AF detector output.
Fixed level, regardless of the 
[AF] control position.

Output impedance
Output level

: 4.7 k

˘

: 100–300 mV rms

13

SQLS

Squelch output.
Grounded when squelch opens.

SQL open
SQL closed

: Less than 0.3 V/5 mA
: More than 6.0 V/100 μA

ACC 1

ACC 2

q FSKK

t AF

w GND

y SQLS

e SEND

u 13.8 V

r MOD

i ALC

q NC

t ALC

w GND

y SEND

e SEND

u 13.8 V

r NC

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Connect to ACC socket

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PANEL DESCRIPTION