Kenwood TK-2180 Modification Information

Also see for TK-2180: Specifications Brochure & specs Instruction manual Instruction manual Service manual

1 TERMINAL FUNCTION4 Modification Information Version: 1.13 USA1.4 14-pin Universal Connector(TK-2180/ 3180 only)The 14-pin connector is available on the TK-2180/ 3180transceivers and you can connect external devices to thisconnector.Figure 1-3 14-pin Universal ConnectorTable 1-4 14-pin Universal Connector Pin Assignment1 3 5 7 9 11 132 4 6 8 10 12 14Pinnumber Name I/O Function1 SSW I Ext/Int Speaker Switch InputL=External Speaker On, H=Internal Speaker ON, Input Voltage= 0 - 5.0V2 SP+ O BTL Output + for External SpeakerAudio Output Power at Volume Max 1.3+/-0.5W 8ohm, 0.9+/-0.5W 16ohm (typ)3 SP- O BTL Output - for External SpeakerAudio Output Power at Volume Max 1.3+/-0.5W 8ohm, 0.9+/-0.5W 16ohm (typ)4 MSW I Ext/ Int Mic Switch InputL=External Mic On, H=Internal Mic On, Input Voltage= 0 - 5.0V5 EMC IExt Mic InputImpedance=1.8kohm Audio Level; 60% system deviation with 7.5+/-2.5mVrms Input,Normal DC Voltage; 5.0+/-1V.6 ME - External Mic Ground7 PTT I External PTT Input; L=PTT On8 PF IProgrammable Function Key InputInput voltage range; 0 - 5V (10kohm Pull-Up to 5V)Input Level; 5.0 to 4.4=None, 4.4 to 3.1V=PF1 key On, 3.1 to 2.3V= PF2 key On, 2.3 to 0V= PF1&2 key On9 OPT I/OAUX I/O port (for External Option)Man Down Input; H=more than 4.0V/ L=less than 1.0V (Range 0 to 5V)Serial Data Input; H=more than 4.0V/ L=less than 1.0V (Range 0 to 5V), Data speed=57600bps maxAUX Output; H=more than 4.7V/ L=less than 0.45V with 25kohm load.10 E - Ground11 5U - 5 V Output (FPU programable), 140 mAmax12 TXD O Serial Data OutputC MOS Level, H=more than 4.7V/ L=less than 0.45V with 25kohm load, Baud rate =57600bpd max13 RXD I Serial Data InputC MOS Level, H=more than 4.0V/ L=less than 1.0V (Range 0 to 5V), Baud rate =115200bpd max14 NC (E) - Not use (GND)