9针485接线示意图
![图2是rs485引脚db9连接器的rs485接线图6969图3是25针rs485引脚半](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=4075810197,2279183462&fm=253&fmt=auto&app=138&f=JPEG?w=315&h=237)
图2是rs485引脚db9连接器的rs485接线图6969图3是25针rs485引脚半
图片尺寸315x237![9针串口rs232,rs485之间的差异](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=985125263,730787158&fm=253&fmt=auto&app=138&f=PNG?w=578&h=214)
9针串口rs232,rs485之间的差异
图片尺寸578x214![rs232和rs485串口区别:rs232接口九针连接器示意图](https://i.ecywang.com/upload/1/img2.baidu.com/it/u=2069273530,3786768397&fm=253&fmt=auto&app=138&f=JPEG?w=595&h=273)
rs232和rs485串口区别:rs232接口九针连接器示意图
图片尺寸595x273![首页> 485通讯方式接线图 接线方式接入表内 img59.chem17.](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=463638132,1893602724&fm=253&fmt=auto&app=138&f=JPEG?w=663&h=232)
首页> 485通讯方式接线图 接线方式接入表内 img59.chem17.
图片尺寸663x232![rs485接线示意图](https://i.ecywang.com/upload/1/img2.baidu.com/it/u=3863669629,1054326728&fm=253&fmt=auto&app=138&f=JPG?w=503&h=278)
rs485接线示意图
图片尺寸503x278![modbus协议和电总协议的初步认知](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=3262913356,3054047236&fm=253&fmt=auto&app=138&f=JPEG?w=474&h=504)
modbus协议和电总协议的初步认知
图片尺寸474x504![rs485接线方法](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=1158180690,3288133420&fm=253&fmt=auto&app=138&f=JPEG?w=500&h=663)
rs485接线方法
图片尺寸681x903![rs232-rs485/422无源接口转换器db9针/门禁考勤系统接口转换器](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=4078925774,3917582351&fm=253&fmt=auto&app=138&f=JPEG?w=463&h=707)
rs232-rs485/422无源接口转换器db9针/门禁考勤系统接口转换器
图片尺寸463x707![rs485,rs422接线图](https://i.ecywang.com/upload/1/img0.baidu.com/it/u=215301850,3509946934&fm=253&fmt=auto&app=138&f=JPEG?w=856&h=500)
rs485,rs422接线图
图片尺寸969x566![电脑9针接线图电脑9针接线图图片展示](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=3547842595,1502792725&fm=253&fmt=auto&app=138&f=JPEG?w=809&h=285)
电脑9针接线图电脑9针接线图图片展示
图片尺寸852x300![485插头接线方式9针图](https://i.ecywang.com/upload/1/img0.baidu.com/it/u=618829005,1140270949&fm=253&fmt=auto&app=138&f=JPEG?w=485&h=659)
485插头接线方式9针图
图片尺寸485x659![s7-200 smart cpu集成的rs485通信端口(端口0)是与rs485兼容的9针d型](https://i.ecywang.com/upload/1/img2.baidu.com/it/u=2991243008,856073549&fm=253&fmt=auto&app=120&f=JPEG?w=500&h=478)
s7-200 smart cpu集成的rs485通信端口(端口0)是与rs485兼容的9针d型
图片尺寸600x574![485多设备接线图及通讯线布线原则](https://i.ecywang.com/upload/1/img2.baidu.com/it/u=2341171465,685356775&fm=253&fmt=auto&app=138&f=JPEG?w=500&h=248)
485多设备接线图及通讯线布线原则
图片尺寸500x248![rs232转rs485接线图](https://i.ecywang.com/upload/1/img0.baidu.com/it/u=1215626882,2023887814&fm=253&fmt=auto&app=138&f=PNG?w=815&h=500)
rs232转rs485接线图
图片尺寸1126x691![485通讯接线图](https://i.ecywang.com/upload/1/img0.baidu.com/it/u=3640847429,4132583325&fm=253&fmt=auto&app=138&f=JPEG?w=427&h=237)
485通讯接线图
图片尺寸450x250![db9免焊9针串口接头2排9针转接线端子rs232免焊接485免焊插头](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=3302999914,3376545978&fm=253&fmt=auto&app=138&f=JPEG?w=524&h=500)
db9免焊9针串口接头2排9针转接线端子rs232免焊接485免焊插头
图片尺寸750x715![zy092_(z-tek(力特))zy092中文资料_价格_pdf手册-立创电子商城](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=2508702150,2732989843&fm=253&fmt=auto&app=138&f=JPEG?w=283&h=500)
zy092_(z-tek(力特))zy092中文资料_价格_pdf手册-立创电子商城
图片尺寸750x1325![信号板rs485接线图与九针插头对应](https://i.ecywang.com/upload/1/img0.baidu.com/it/u=3192016926,1121498635&fm=253&fmt=auto&app=138&f=JPEG?w=411&h=500)
信号板rs485接线图与九针插头对应
图片尺寸455x553![>威勤 rs232转rs485db9针座(rs422/rs485 黑色)接线方式 db9针座 db9](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=1511234264,1474294774&fm=253&fmt=auto&app=138&f=JPEG?w=797&h=500)
>威勤 rs232转rs485db9针座(rs422/rs485 黑色)接线方式 db9针座 db9
图片尺寸823x516![rs422与rs485的连接方法](https://i.ecywang.com/upload/1/img1.baidu.com/it/u=674558615,1191134793&fm=253&fmt=auto&app=138&f=GIF?w=577&h=500)
rs422与rs485的连接方法
图片尺寸600x520