Kenwood NXR-700H Service Manual

NXR-700H63Microphone Connector(Left =1…Right=8, Front Panel View)PinNo.PinName I/O SignalTypeModifi -cation Description/ Port Type1 NC - - No -2 SB - Power No Power3 GND - GND No Digital GND4 PTT I Digital No PTT Signal/ CMOSActive Lo5 MIG - - No MIC GND6 MIC I Analog No MIC Input7 HOOK I Digital No HOOK Detect SignalCMOS, Active Lo8 NC - - No -Frame Synchronous Connector(Left =1…Right=4, Rear Panel View)There are two connectors at the rear panel, these are the samefunction.PinNo.PinName I/O SignalTypeModifi -cation Description/ Port Type1 FRMA I/O - No RS-485 Differential Signal A2 NC - - No -3 NC - - No -4 FRMB I/O - No RS-485 Differential Signal B麦克风连接器( 左 =1…右 =8，前面板视图 )管脚号针脚名称输入 /输出信号类型更改说明 / 端口类型1 NC - - 否 -2 SB - 电源否电源3 GND - GND 否数字 GND4 PTT 输入数字否 PTT 信号 /CMOS低电平有效5 MIG - - 否 MIC GND6 MIC 输入模拟否 MIC 输入7 HOOK 输入数字否 HOOK 检测信号CMOS, 低电平有效8 NC - - 否 -帧同步连接器( 左 =1…右 =4，后面板视图 )后面板有两个连接器，它们的功能相同。管脚号针脚名称输入 /输出信号类型更改说明 / 端口类型1 FRMA 输入 / 输出 - 否 RS-485 差分信号 A2 NC - - 否 -3 NC - - 否 -4 FRMB 输入 / 输出 - 否 RS-485 差分信号 BTERMINAL FUNCTION / 端子功能