Kenwood NEXEDGE NX-820HG Instruction Manual page 4

Terminal Descriptions
ACC (D-SUB 15 Pin Connector)
Pin No. Name
1 SB
2 IGN
3 SP2/PA
4 DETO
5 DATAI
6 FNC1/ TXD
7 FNC2/ RXD
8 FNC3
9 FNC4
10 FNC5
11 FNC6
12 50MC
13 HR1
14 HR2
15 GND
Speaker Jack (3.5 mm Phone Jack) 4 W/ 4 
Pin No. Name
1 SPO
3 GND
DC Input Connector
Pin No. Name
Red B
Black GND
Microphone Jack
Pin No. Name
1 MBL
2 SB
3 GND
4 PTT/ TXD
5 ME
6 MIC
7 HOOK/ RXD
8 DM
RF Antenna Terminal
50  impedance
GPS Antenna Terminal <NX-720HG/ NX-820HG/ NX-920G only>
50  impedance
I/O
O DC Power (Switched B) Output
I Igintion Signal Input
O Loudspeaker Output/ Public Address Output
O RX Detected Audio Output
I TX Data Input
I/O Programmable/ PC Serial Data from Radio
I/O Programmable/ PC Serial Data to Radio
I/O Programmable
I/O Programmable
I/O Programmable
I/O Programmable
O DC Power Output
I Horn Alert Signal Input
O Horn Alert Signal Output
— Ground
I/O
O External Speaker Output
— Ground
I/O
I DC Power Input
I Ground
I/O
O MIC Backlight Control
O DC Power (Switched B) Output
— Ground
I/O PTT/ PC Serial Data from Radio
— Mic Ground
I Mic Signal Input
I Hook/ PC Serial Data to Radio
I/O Mic Data Detection
Description
Description
Description
Description
Specifi cation
13.6 V ±15% Max. 2 A
Min. Input: 10.8 V
Max. Input: 16.0 V
4 
280 mV (typ.)
p-p
100 k
High Impedance
High Impedance
High Impedance
High Impedance
High Impedance
High Impedance
5 V, Max 100 mA
Max 2 A
Max 2 A
Ground
Specifi cation
4 
Ground
Specifi cation
13.6 V ±15%
Ground
Specifi cation
High Impedance
13.6 V ±15%
Ground
High Impedance
Ground
600 
High Impedance
High Impedance