Terminal Descriptions - Kenwood NX-3000 series User Manual

terMinaL DesCriPtions

universal connector (nX-3200/ nX-3300)
It is possible to use a resin-based cover for the Universal connector.
Pin no. name
1 SSW Ext/ Int Speaker Switch Input Hi: INT, Low: EXT
BTL Output + for External
2 SP+
Speaker
BTL Output – for External
3 SP-
Speaker
4 MSW Ext/ Int MIC Switch Input
5 EMC External MIC Input
6 ME External MIC GND
7 PTT External PTT Input
Programmable Function
8 PF
Button Input
9 OPT Aux I/O Port (for EXT Option)
10 E GND
11 5V 5 V
12 TXD Serial Data Output
13 RXD Serial Data Input
14 EMC External MIC input
Speaker/ Microphone Jacks (nX-3220/ nX-3320)
It is possible to use a resin-based cover for the Speaker/ Microphone jacks.
Pin no. name
1 PTT/RXD
2 MICI
3 NC
4 OPTDET
5 50J
6 AE
7 TXD
8 EXTSPDET External speaker detection
9 SPO
antenna Terminal
50 Ω impedance
12
Description
Description
PTT input / Serial data input 2.7 kΩ
MIC input
No connection
Option Detect
5V output
Audio Earth
Serial data output
AF power output
Specification
Standard load 8 Ω
Standard load 8 Ω
Hi: INT, Low: EXT
Impedance: 2.2 kΩ
-
Low: PTT ON
Input voltage: 0 V - 5.0 V
I: 0 V - 5.0 V
O: Standard load 25 kΩ
GND
5 V power supply output
Max output current: 140 mA
Baud rate: 1.152 Mbps max
Baud rate: 1.152 Mbps max
Impedance: 2.2 kΩ
Impedance
2.2 kΩ
−
74 kΩ
−
GND
10 kΩ
−
−
I/o
I
O
O
I
I
I
I
I/O
O
O
I
I
I/o
I
I
−
I
O
−
O
−
O