Kenwood NXR-800H Service Manual

NXR-800H54Pin No. Name I/O Function32 A16C_CK_SFT O “Frequency shift” signal to RF control MPU33 BER_DAT O Serial data for measurement bit error rate34 BER_CLK O Serial clock for measurement bit error rate35 GND - Ground36 SYS_RST O System reset signal from modemcontrol MPUCN713 (To COM D-sub 9 connector)1 CD - No connection2 DSR I Data Set Ready3 RD I Receive Data4 RTS O Request to Send5 SD O Send Data6 CTS I Clear to Send7 DTR O Data Terminal Ready8 RI - No connection9 GND - GroundRX Unit (X55-3102-XX)Pin No. Name I/O FunctionCN5 (To RX ANT)1 RX_SIGNAL I Receive signal input (Coaxial)CN6 (To X45-386 D/5 CN701)1 - O 9V output2 - - GroundCN36 (To X45-386 D/5 CN701)1 - I -3V input2 - - GroundCN411 MONITOR_PORT O Use for RX BPF tuning (Coaxial)CN42 (To X53-413 CN57)1 GND - Ground2 GND - Ground3 NC - No connection4 RX_POWER_SAVE I RX power save5 DDS_EN I Enable input for DDS6 VCO_BAND_SW I VCO band switch7 PLL1_EN I Enable input for PLL18 DA_EN I Enable input for DA9 SIF_CLK I Clock input for PLL1/PLL2/DDS/DA10 GND - Ground11 SIF_DAT I Data input for PLL1/PLL2/DDS/DA12 RX_AUDIO O RX audio output13 PLL_PWR_SAVE I Enable input for PLL1/PLL214 GND - Ground15 NC - No connection16 FM_RSSI O FM RSSI output管脚号名称输入 / 输出功能32 A16C_CK_SFT 输出至 RF 控制 MPU 的“频率偏移”信号33 BER_DAT 输出测量比特误码率的串行数据34 BER_CLK 输出测量比特误码率的串行时钟35 GND - 接地36 SYS_RST 输出调制解调器控制 MPU 的系统复位信号CN713( 至 COM D-sub 9 连接器 )1 CD - 未连接2 DSR 输入数据集就绪3 RD 输入接收数据4 RTS 输出请求发送5 SD 输出发送数据6 CTS 输入清除发送7 DTR 输出数据端子就绪8 RI - 未连接9 GND - 接地RX 单元 (X55-3102-XX)管脚号名称输入 / 输出功能CN5( 至 RX ANT)1 RX_SIGNAL 输入接收信号输入 ( 同轴 )CN6( 至 X45-386 D/5 CN701)1 - 输出 9V 输出2 - - 接地CN36( 至 X45-386 D/5 CN701)1 - 输入 -3V 输入2 - - 接地CN411 MONITOR_PORT 输出用于 RX BPF 调谐 ( 同轴 )CN42( 至 X53-413 CN57)1 GND - 接地2 GND - 接地3 NC - 未连接4 RX_POWER_SAVE 输入 RX 节电5 DDS_EN 输入启用 DDS 输入6 VCO_BAND_SW 输入 VCO 频带开关7 PLL1_EN 输入启用 PLL1 输入8 DA_EN 输入启用 DA 输入9 SIF_CLK 输入 PLL1/PLL2/DDS/DA 的时钟输入10 GND - 接地11 SIF_DAT 输入 PLL1/PLL2/DDS/DA 的数据输入12 RX_AUDIO 输出 RX 音频输出13 PLL_PWR_SAVE 输入启用 PLL1/PLL2 输入14 GND - 接地15 NC - 未连接16 FM_RSSI 输出 FM RSSI 输出TERMINAL FUNCTION / 端子功能