Garmin Apollo SL40 Installation Manual

Also see for Apollo SL40: Installation Pilot's guide Pilot's guide User guide User guide

Contents

Specifications18 Apollo SL40 Installation ManualREAR CONNECTOR PINOUTTable 2 Connector PinoutPin # I/O Connection Function1 I Power + main DC power input2 I Reserved Do not connect3 O TxD RS232 serial data output4 I TxKey transmit enable key, pulled low to transmit5 -- NC Do not connect6 O Speaker speaker terminal output7 I Mic ground microphone input ground connection8 I Mic 1 microphone input #19 I Power ground main power ground input10 I RxD RS232 serial data input11 O Serial ground RS232 signal ground12 I Intercom select intercom function select, pulled low to turn on the intercomfunction13 O Audio ground speaker and headphone ground connection14 O Headphone headphone terminal output15 I Mic 2 microphone input #21 89 15Viewed from rear of unit