Kenwood NX-220 Mode D'emploi page 6

TERMINAL DESCRIPTIONS
Speaker/ Microphone Jacks
You can use a resin-based cover for the Speaker/ Microphone
jacks.
No. Name
1 PTT/RXD
2 MICI
3 MICO
4 OPTDET
5 50V
6 AE
7 TXD
8 SPI
9 SPO
Antenna Terminal
50  impedance
ii
Description
PTT input / Serial data input
MIC input
Output from internal MIC
Option Detect
5V output
Audio Earth
Serial data output
To internal SP
AF power output
Impedance
10 k 
1.8 k 
−
74 k 
−
GND
6.8 k 
8  (Load)
−
I/O
I
I
O
I
O
−
O
I
O