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SECTION 3
INTERFACE INFORMATION
3-1
SECTION 3
INTERFACE INFORMATION
● FRONT panel
[PHONES]
• 3.5 mm (
⅛ in
) (d)
[MIC]
[PHONES]
Main band audio
Sub band audio
GND
3.5 (d) mm (
⅛
in)
• Output impedance:
8 ~ 16 Ω
• Output level:
More than 5 mW into an 8 Ω
load.
[MIC]
q
Microphone input
w
+8 V DC output
e
Frequency up/down
r
Squelch line output
t
PTT
y
GND (PTT ground)
i
AF output
u
GND
(Microphone ground)
PIN No.
DESCRIPTION
q
Microphone input
NOTE:
This pin outputs 8 V DC power supply for
the Icom microphone.
w
+8 V DC output (Maximum 10 mA)
e
Frequency up/down
External keypad
*
input
r
Grounded when squelch opens.
t
PTT
y
PTT/External keypad
*
ground
u
Microphone ground
i
AF output [EXT-SP MAIN]/[EXT-SP SUB]
(varies with the AF control.)
*
External keypad
PIN
e
PIN
y
1.5 k
Ω
±5%
1.5 k
Ω
±5%
2.2 k
Ω
±5%
4.7 k
Ω
±5%
S1
S2
S3
S4
1
2
3
4
5
6
7
8
MIC
External keypad
Front panel
view
[MIC]
connector