18
CONNECTOR INFORMATION
18-3
ACC socket (Continued)
Microphone connector
D
OPC-599 ACC conversion cable pin assignments
1 2 3 4
8
8
7
6
5
9 10 11 12
13
1
2
3
4
7
6
5
1
2
3
4
7
6
5
[ACC] socket
(IC-7300)
ACC 1
ACC 2
q
FSKK
w
GND
e
SEND
r
MOD
t
AF
y
SQLS
u
13.8 V
i
ALC
q
8 V
w
GND
e
SEND
r
BAND
t
ALC
y
—
u
13.8 V
q
Microphone input
w
+8 V DC output
e
Frequency up/down
r
Squelch line output
t
PTT
y
GND (PTT ground)
u
GND
(Microphone ground)
i
AF output
PIN No.
DESCRIPTION
q
Microphone input (Impedance: 600 Ω)
w
+8 V DC output (Maximum 10 mA)
e
Up: Ground
Down: Ground through 470 Ω
r
Grounded when the squelch opens.
t
PTT
y
PTT ground
u
Microphone ground
i
AF output (varies with the [AF] control.)
D
External keypad
A circuit is used to output memory content from 4
memories. You can output desired memory content
such as that from a CW Memory keyer (M1 ~ M4),
Voice memory (T1 ~ T4), RTTY Memory (RT1 ~ RT4)
to be transmitted.
z
Push a switch to send the memory information.
z
Hold down the switch for 1 second to repeatedly
send the memory information.
L
To use the external keypad, turn ON the following
items in the CONNECTORS set screen. (p. 12-8)
MENU
» SET > Connectors >
External Keypad
•VOICE: ON
•KEYER: ON
•RTTY: ON
L
The External keypad is not supplied by Icom. (User
supplied)
The OPC-599 ACC conversion cable connects
between a 13 pin [ACC] socket and 7 pin and 8 pin
sockets.
PIN
e
PIN
y
1.5 k
ø
±5%
1.5 k
ø
±5%
2.2 k
ø
±5%
4.7 k
ø
±5%
S1
S2
S3
S4
1
2
3
4
5
6
7
8
MIC
External keypad
Front panel
view
[MIC]
connector
Front panel view
Previous view
