NT-BR44RN  is  an  extensible  4-channel  serial  port  and  4-channel  relay  port  interface  expander.  It  supports  communication  with  programmable  central  control  system  or  PC  through  RS232/422  or  IP,  realizes  the  control  of  a  variety  of  devices  and  protocol  conversion  between  devices  with  different  communication  methods,  supports  multiple  extenders  cascade,  panel  to  be  status  indicator  light.

1,  4-way  serial  port  expansion:  2-way  RS232/422/485,  2-way  RS232,  support  hardware  flow  control;
2,  4-channel  independent  switch  relay  expansion,  single  channel  can  carry  the  maximum  24V  1A  load;
3,  each  serial  port  supports  independent  setting  baud  rate:  2400~115200;
4.  Each  extended  serial  port  is  equipped  with  a  large  buffer  space  to  queue  the  sending  and  receiving  data;
5,  each  frame  of  data  can  support  512  bytes;
6,  support  extended  serial  port  to  TCP/IP  or  UDP  network  through  data  transmission,  support  multiple  cascading;
7,  support  RS2332/422/485  or  IP/TCP/UDP  docking  with  other  systems,  support  as  a  structured  control  host  port  expansion  auxiliary;
8,  built-in  WEB  server  with  permission,  support  mobile  phone,  Pad  and  other  devices  for  Web  management;
9.  The  front  panel  provides  4-way  serial  port  transceiver  and  4-way  relay  action  indicator  light;