Terminal Descriptions - Kenwood TK-D240 Guide De L'utilisateur

Speaker/ Microphone Jacks
It is possible to 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 NC
9 DET
10 SPO
Antenna Terminal
50 Ω impedance
10

TERMINAL DESCRIPTIONS

Description
External PTT Input / Serial Data
Input
External MIC Input
Internal MIC Output
External Option Detection
5V Output
GND
Serial Data Output
No Connection
External Speaker Detection
Received Audio Output
Impedance
47 kΩ
1.8 kΩ
1.9 kΩ
74 kΩ
−
GND
6.8 kΩ
−
47 kΩ
8 Ω
I/O
I
I
O
I
O
−
O
−
I
O