USERS MANUAL RF DATA LINK RADIOS 70-101BD 70-201BD Midland Radio Corporation Important Information__________________________________________________________
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ACRONYMS AND ABBREVIATIONS Below is a list of common electrical abbreviations used in documentation.
All connections to the unit are made through the DB9 connector. Connect wiring according to the diagram below. Connections to DB-9 connector: 1. Mod in (data). Audio sensitivity is 100mV RMS @ 60% Peak deviation. 2. AF out (data) (0.25 volt rms) 3. PTT . Ground to transmit. 4. GND 5. V in . 9-18 VDC 6. Busy Detector 0 volts DC = busy, 5 volts DC = open 7. Audio/Mic in. Sensitivity 5 mV. Typ. 8. Switch 9. Spkr out. 1 V. rms. typ. to 8 ohm load. PS current: Power save 15-30 mA. typ. Standby 30-50 mA. typ.
