???? ????
??????? ?????? ????? ?????? ???????? ??????? RS485/422? ??????? ???????? ?????? ?????? ????? ????????? ????? ????????? ?????? ??????? ?????? ?????? ?????? ?? ???????. ????? ????? ????? ????? ???????: ??????? ???????? ?????? ?????? ???????? ??????? ?????? ?????. ??? ???? ?? ????? ?????? ????? ?? ?????? ?????? ???? ?????? ?????? ???? ??????? ??? ????? ?????? ????? ?????? ??? ?????? ??????? ?? ???????? ??? ???? ???????.
?????
????? ?????? ???? ???? ?????? ????? ??????? ???? (???? ?????)? ?????? ????? ?????? ?? ????? ??? ????? ????? ?????? ??? ??? ??????? ????????.
?????? ???????
GB/T 18802.21
???? ?????????
???????? ??????
???? ????? ????????
?????? ???????
??????? ????????: 93mm×69mm×12mm(????? × ????? × ????????)
