UTEK UT-202D Passive RS232 to RS422 Converter RS422 to 9Pin Serial Port Two-way Communication Distance 1.2KM No Need Power Product Description UT-202 photoelectric isolation interface converter can convert the single-ended RS232 signal into balance differenced RS422 signal. The built-in photoelectric isolator can provide an isolation voltage of as high as 2500Vrms. Also, there is a rapid transient voltage suppression protector for protection of RS422 interface with advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR) technology adopted. The converter is applicable for all the existing communication software and interface hardware without any software modifications for the previous working mechanism based on RS-232.

A reliable and stable point-to-point and point-to-multipoint communication can be ensured by UT-202. Product Features
1.
Interface feature: RS232C, RS422 standard interface compatible with EIA TIA
2.
Electric interface: DB9 hole connector for RS-232 interface input end, DB9 needle connector for RS485 interface output end
3.
Working mode: asynchronous full duplex
4.
Transmission media: twisted pair cable or STP
5.
Transmission rate: 300- 115.2KBPS
6.
External discharge dimension: 63mm * 33mm * 17mm
7.
Working circumstance: - 25 to 70 degree C, relative humidity 5%to95%
8.
Transmission distance: 0-1, 200meters
9.
Operating system: DOS/WIN95/WIN98/WIN2000/NI/XP/Linux and so on
10. Applies to all communication software, plug and pay
11. Max 32 pieces devices can connect
12. Auto send/receive data, without external flow control signal (RTS)