Terminal Descriptions
ACC (D-SUB 15 Pin Connector)
Pin No.
Name
I/O
Description
Specifi cation
1
SB
O
DC Power (Switched B) Output
13.6 V ±15% Max. 2 A
2
IGN
I
Igintion Signal Input
Min. Input: 10.8 V
Max. Input: 16.0 V
3
SP2/PA
O
Loudspeaker Output/ Public Address Output
4
4
DETO
O
RX Detected Audio Output
280 mV
p-p
(typ.)
5
DATAI
I
TX Data Input
100 k
6
FNC1/ TXD
I/O
Programmable/ PC Serial Data from Radio
High Impedance
7
FNC2/ RXD
I/O
Programmable/ PC Serial Data to Radio
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
50MC
O
DC Power Output
5 V, Max 100 mA
13
HR1
I
Horn Alert Signal Input
Max 2 A
14
HR2
O
Horn Alert Signal Output
Max 2 A
15
GND
—
Ground
Ground
Speaker Jack (3.5 mm Phone Jack) 4 W/ 4
Pin No.
Name
I/O
Description
Specifi cation
1
SPO
O
External Speaker Output
4
3
GND
—
Ground
Ground
DC Input Connector
Pin No.
Name
I/O
Description
Specifi cation
Red
B
I
DC Power Input
13.6 V ±15%
Black
GND
I
Ground
Ground
Microphone Jack
Pin No.
Name
I/O
Description
Specifi cation
1
MBL
O
MIC Backlight Control
High Impedance
2
SB
O
DC Power (Switched B) Output
13.6 V ±15%
3
GND
—
Ground
Ground
4
PTT/ TXD
I/O
PTT/ PC Serial Data from Radio
High Impedance
5
ME
—
Mic Ground
Ground
6
MIC
I
Mic Signal Input
600
7
HOOK/ RXD
I
Hook/ PC Serial Data to Radio
High Impedance
8
DM
I/O
Mic Data Detection
High Impedance
RF Antenna Terminal
50
impedance
GPS Antenna Terminal <NX-720HG/ NX-820HG/ NX-920G only>
50
impedance
