Kenwood NXR-700 Service Manual

Also see for NEXEDGE NXR-700: Brochure Instruction manual Service manual Instruction manual Instruction manual

Contents

NXR-70039TERMINAL FUNCTIONCONTROL I/O D-sub 25-pin ConnectorPinNo. Pin Name I/O SignalType Signal Summary Specification Min Typ Max Unit Remarks1 NC (RSSI) - - - - - - - - -2 NC - - - - - - - - -3 NC - - - - - - - - -4 AI1 I DigitalProgrammableFunction Input 1/CMOSVIH 0.8Vcc - Vcc V Vcc=5V±2%VIL 0 - 0.2Vcc VInput impedance - 47k -  47k PU to Vcc5 AI2 I DigitalProgrammableFunction Input 2/CMOSVIH 0.8Vcc - Vcc V Vcc=5V±2%VIL 0 - 0.2Vcc VInput impedance - 47k -  47k PU to Vcc6 AI3 I DigitalProgrammableFunction Input 3/CMOSVIH 0.8Vcc - Vcc V Vcc=5V±2%VIL 0 - 0.2Vcc VInput impedance - 47k -  47k PU to Vcc7 DG - GND Digital GND - - - - - -8 TD I Analog TX Data Input(signaling)INPUT: 0.1kHz/0.5Vp-p 0.7 0.75 0.8 kHzDEV NFMInput impedance - 600 -  600 PD is appliedto GND.9 TA I Analog TX Audio Input(voice)1kHz/60% Dev 270 280 290 mV NFMInput impedance - 600 -  600 PD is appliedto GND.10 RD O AnalogRX Data Output(signaling)Not squelchedINPUT: 60% Dev. 75 80 85 mV -11 RA O AnalogRX Audio Output(voice)SquelchedINPUT: 60% Dev. 380 400 420 mV -12 RXG - GND RX Signal GND - - - - - -13 SPM I Digital Speaker Mute/CMOSVIH 0.7Vcc - 5.5 V Vcc=3.3V±2%VIL - - 0.3Vcc VInput impedance - 47k - 47k PU to Vcc14 BER_CLK O Digital for Bit Error RateClockVOH (IO=–50μA) Vcc–0.1 Vcc - VVOL (IO=50μA) - 0 0.1 V15 EMON I Digital External MonitorSwitchVIH 0.8Vcc - Vcc V Vcc=5V±2%VIL 0 - 0.2Vcc VInput impedance - 47k -  -16 EPTT I Digital External PTT SwitchVIH 0.8Vcc - Vcc V Vcc=5V ±2%VIL 0 - 0.2Vcc VInput impedance - 47k - 47k PU to Vcc17 SC O Digital Squelch Control VOH (IO=–200μA) Vcc–2.0 - Vcc VVOL (IO=200μA) - - 0.45 V18 BER_DAT O Digital for Bit Error RateDataVOH (IO=–50μA) Vcc–0.1 Vcc - VVOL (IO=50μA) - 0 0.1 V