RS232 To RS485 Passive Bi-Directional Converter
RS232 to RS485 converter industrial grade passive lightning protection RS485 to RS232 serial module UT-204E 232 to 485 converter passive communication module two-way mutual lightning protection.Bidirectional converter RS232/RS485 interface converter between applied between the host computer , point to point between the host computer and the microcontroller constitute or peripherals , multipoint remote multi-machine communication network , multi- machine acknowledge communications Communications , widely used in industrial automation and control systems, card access control systems , parking systems, self-service banking system , bus charging system , canteen canteen system , employees attendance management system , highway toll station systems.RS232/RS485 turn , able to convert the RS-232 serial port TXD and RXD signals into two balanced half-duplex RS-485 signals. No external power supply directly from the 3 -pin RS-232 port of stealing , while the 7 -pin request to send (RTS), 4 -pin Data Terminal Ready (DTR) to RS232/RS485 auxiliary ? Relieve far husbandry epiphyseal Jue Gucuihuaipianpang Guilvyoumang cloth Chuancangbaya pale plum gown < gadfly Farmer ?
Second, the performance parameters:
- 1, the serial features: interface compatible with EIA / TIA RS-232C, RS-485 standard .
- 2, the electrical interfaces : RS-232 DB9 hole end side interfaces , RS-485 DB9 male connector ends with terminals.
- 3 , work: asynchronous half-duplex.
- 4 , the transmission medium : ordinary cable, twisted pair or shielded cable.
- 5 , the transmission rate : 300 ~ 115-21BDS.
- 6 , the transmission distance : 5 meters (RS-232 terminal ) 1.200 m (RS-485 terminal ) .
- 7 , the communication protocol : Clear.
- 8 , the working environment : -10 to 85 Relative Humidity 5% to 95%.
- 9, the signal : RS-232: TXD, RXD, RTS, CTS, DTR, DSR, DCD, CND; RS-485: Date +, Date-, GND.
