Kenwood FM Transceiver TK-481, Инструкция по эксплуатации

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TK-481 Terminal Descriptions
Universal connector
It is possible to use a resin-based cover for the Universal connector.
NO. Name Description Impedance I/O
1 SSW Ext/Int Speaker Switch Input High Impedance I
2 SP+ BTL for External Speaker 8 Ω O
3 SP- BTL Output - for External Speaker 16 Ω O
4 MSW Ext/Int MIC Switch Input High Impedance I
5 EMC External MIC Input 1.8 k Ω I
6 ME External MIC GND GND -
7 PTT External PTT Input High Impedance I
8 PF Programable Function Key Input High Impedance I
9 NC Not used - -
10 E GND GND -
11 5M 5V power supply output 5V -
12 TXD Serial Data Output CMOS O
13 RXD Serial Data Input CMOS I
14 NC Not used - -
Antenna Terminal
50 Ω impedance
Battery Terminal
The battery terminal uses a spring plate.
The negative terminal connects to the chassis ground.
The battery is mounted on the rear and upper side of the transceiver using a
sliding mounting method.
1 +
2 -
1 2
Back side view
Antena