Twisted Pair / STP RS-232 S-485 Converter With EIA TIA Standard

Twisted -pair or STP , RS-232 to RS-485 Serial Converter with EIA TIA Standard

Description:

In order to carry through remote digital communication between computers with various standard series interfaces converter facilities or intelligent instruments, it needs inter exchange of standard series interface converter of compatible RS-232C and RS-485 standard is able to convert mono-end RS-232 signal to balanced differential RS-485 signal and extend the communication distance to 1.2km. No external power but adopts a particular RS-232 charge pump to drive the system, and gains electricity without initializing the RS-232 series interface.

An internal zero-delay auto transceiver and particular I/O circuit automatically control the data stream direction instead of an handshake signal (for example RTS, DTR etc). There by to guarantee the function under RS-485 without changing the program compiled under RS-232 half-duplex mode and assure the adaptation to current operation software and interface hardware. The transmission rate is 300-115.2Kbps. It is capable of applying between host computers, host computer and is extensions or external equipment and forms dot to dot, dot to dots remote and multi-communication network. It implements multi-machine response communication and commonly used in systems of industrial automation control all-one-card. They are used in door safe, car parking, ATM, bus charge, eatery sell out, staff attendance management, and toll highway etc. 

Capabilities parameter

Interface Feature:            RS-232C RS-485 standard interface compatible with EIA TIA

Electric Interface:             RS-232 end DB9 hole connector RS-485 end DB9 needle connector with Connection Pole

Working Mode:                 Asynchronismhalf-duplex difference transmission

Transmission Media:        Twisted -pair or STP

Transmission Rate:            300-115.2Kbps

External Discharge Dimension:       63mmX33mmX17mm

Working Circumstance :                  - 25 to 70 degree C,

Relative Humidity:                           5%to95%

Transmission Distance:                  1,200m(RS-485 end) 5m(RS-232 end)

Connector and signal