Terminal Descriptions
ACC (D-SUB 15 Pin Connector)
Pin No.
Name
I/O
Description
Specification
1
SB
O
DC Power Output
13.6 V ±15%
2
IGN
I
Igintion Signal Input
Power On: Over 8 V
Power Off: Under 6 V
3
PA
O
Loudspeaker Output
4
Ω
4
DO
O
Audio Output
500 mV
p-p
5
DI
I
Audio Input
5 k
Ω
6
FNC1
I/O
Programmable
High Impedance
7
FNC2
I/O
Programmable
High Impedance
8
FNC3
I/O
Programmable
High Impedance
9
FNC4
I/O
Programmable
High Impedance
10
FNC5
I/O
Programmable
High Impedance
11
FNC6
I/O
Programmable
High Impedance
12
5C
O
DC Power Output
5 V, Max 100 mA
13
HR1
O
Horn Alert Signal Output
Max 3 A
14
HR2
O
Horn Alert Signal Output
Max 3 A
15
GND
—
Ground
Ground
Speaker Jack (3.5 mm Phone Jack) 4 W/ 4
Ω
Pin No.
Name
I/O
Description
Specification
1
SPO
O
External Speaker Output
4
Ω
3
GND
—
Ground
Ground
DC Input Connector
Pin No.
Name
I/O
Description
Specification
Red
B
I
DC Power Input
13.6 V ±15%
Black
GND
I
Ground
Ground
Microphone Jack
Pin No.
Name
I/O
Description
Specification
1
MBL
O
Backlight of Microphone
—
2
SB
O
DC Power Output
13.6 V ±15%
3
GND
—
Ground
Ground
4
PTT
I/O
PTT/ PC Serial Data from Radio
High Impedance
5
ME
—
Mic Ground
Ground
6
MIC
I
Mic Signal Input
600
Ω
7
HOOK
I
Hook/ PC Serial Data to Radio
High Impedance
8
DM
I/O
Mic Data Detection
High Impedance
Antenna Terminal
50
Ω
impedance
