Kenwood NXR-700 Service Manual

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

Contents

NXR-70038TERMINAL FUNCTIONMicrophone ConnectorPinNo. Pin Name I/O SignalTypeDescription /portType Specification Min Typ Max Unit Remarks1 NC - - - - - - - - -2 SB - Power PowerVoltage value 10.8 13.2 15.6 V Related to DC powersupply terminal inputvoltage.Allowable current value - - 0.2 A3 GND - GND Digital GND Allowable current value - - 0.2 A -4 PTT I DigitalPTT SignalCMOSActive LowVIH 0.8Vcc - Vcc V Vcc=5V±2%VIL 0 - 0.2Vcc VInput impedance - 47k -  47k PU5 MIG - - MIC GND - - - - - -6 MIC I Analog MIC InputInput amplitude value(60%Dev@1kHz) 4 5.5 7 mVrms -Input impedance(DC to 10kHz) - 600 - Allowable frequency 0.3 - 3 kHz7 HOOK I DigitalHOOK Detect SignalCMOSActive LowVIH 0.8Vcc - Vcc V Vcc=5V±2%VIL 0 - 0.2Vcc VInput impedance - 47k -  47k PU8 NC - - - - - - - - -LAN Connector (RJ-45)PinNo. Pin Name I/O SignalTypeDescription /portType Specification Min Typ Max Unit Remarks1 TD+ O Analog TX Signal + - 0.95 - 1.05 V Conform to IEEE802.32 TD– O Analog TX Signal – - 0.95 - 1.05 V Conform to IEEE802.33 RD+ I Analog RX Signal + - - - - - Use Designated Trans-former4 NC - - - - - - - - -5 NC - - - - - - - - -6 RD– I Analog RX Signal – - - - - - Use Designated Trans-former7 NC - - - - - - - - -8 NC - - - - - - - - -SYNC ConnectorPinNo. Pin Name I/O SignalTypeDescription /portType Specification Min Typ Max Unit Remarks1 FRMA I/O - RS-485 DifferentialSignal A[Input] VID=VA–VB –12 - 12 VConform to RS-485[Output] (No load)VOD=|VA–VB| 3 4.3 - V2 NC - - - - - - - - -3 NC - - - - - - - - -4 FRMB I/O - RS-485 DifferentialSignal B[Input] VID=VA–VB –12 - 12 VConform to RS-485[Output] (No load)VOD=|VA–VB| 3 4.3 - V