mwe820aweiusbkoudeyitihuajiexianduanzi，shiyongshiyongusblianjiexianzhijiechazaichazaijisuanjideusbjiekoushangbingzhengqueanzhuangqudongchengxujike。qijiexianduanzidedingyiruxiatusuoshi:
| 接线端子 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| 引脚定 | TX+(A＋) | TX-(B－) | RX+ | RX- | GND |
百家乐官网a、fasongdeng: youshujucongusbkouchuanchu
百家乐官网b、jieshoudeng: youshujuchuanjiusbkou
dangzuoweirs-485shiyongshi，zhixujiangmwe820axinhaodea＋duanyuqitars-485dea＋duanxianglian，b-duanyub-duanxianglian。dangzuoweirs-422shiyongshi，zhixujiangmwe820axinhaodetx＋duanyuqitars-422derx＋duanxianglian，tx-duanyuqitars-422derx-duanxianglian,rx+duanyuqitars-422detx+duanxianglianrx-duanyuqitars-422detx-duanxianglian。dixiankedandujiedi，yekexianghulianjie，zaiyongpingbixianshi，pingbicenggndjiexianzhu。dangrs-485tongxinjulichaoguo500mihuoxianluyouganraoshi，yinggaizaia+、b-jieru120ouzhongduanpipeidianzu。
mwe820ashixianusbzhuanrs-485/rs-422，dianyuanyouusbtigong，wuxuwaigongdianyuan；zhichiyuanchengtongxin（dayu1.5km）heduojitongxin（128jiedian）。fuheusbguifan2.0,zhichirechaba，tongxinsulv: 0～12mbpszishiying。
dutejishujigongyi
1、wanquanfuheusb2.0guifan，zhichirechaba；
2、zhichiwin98/2000/xpduocaozuoxitong；
3、zhichiapple os8/os9;
百家乐官网4、zhichiyuanchenghuanxinghedianyuanguanli；
百家乐官网5、duyoudechuankoubaohudianlu，juyoukangjingdian、kangleiji、tuboyizhigongneng；
百家乐官网6、neizhizhinengmokuai，zidongshibiers-485/rs-422xinhaoliuxiang，lingyanshizidongzhuanfajishu，tongxinbotelv0～12mbpszishiying；
7、gongyejisheji，gongzuowendufanwei: -45℃~85℃，youxuanjinkouyuanqijian，quanbubiaomiantiezhuanggongyi；