Bộ chuyển đổi RS-232 sang RS-422/485 UT-203 Mã: UT-203 Giá: Liên Hệ Hãng sản xuất: UTEK  Feature  1.   Exquisite mini-sized with DB9 connector and wiring post connector.  2.   Compatible with RS-232 and RS-485、RS-422 standards of EIA/TIA.  3.   Automatic data transceiver without external volume control signal (RTS).  4.   Power supply Unique adoption of serial charge pump without external power supply, and three-line (TXD, RXD and GND) communication  5.   Without necessity for initialization of the serial ports to obtain power supply.  6.   A maximum connection of 32 pieces of network devices.  7.   Communication distance: 1.2 KM  8.   Communication rate: 300BPS-115.2KBPS  9.   Transmission media: twisted-pair cable or shielded cable.  10.  Working modes: applicable for both asynchronous half duplex (RS-485) and asynchronous full duplex (RS-422) without any jumper settings needed.  11.  Plug-and-play and universally applicable on all the existing communication software.  12.  Dimensions: 63mm×33mm×17mm.  13.  Working environment: -25℃ to 70℃, relative humidity 5% to 95%.  14.  Supporting DOS/WIN95/WIN98/WIN2000/NT/XP and Linux, etc. Công ty Viễn Thông Tuấn Linh Số 15 Hoàng Đạo Thành, Kim Giang, Thanh Xuân, Hà Nội Số điện thoại: 0916955988 - 04.2242.5522 Facebook:https://www.facebook.com/ctytuanlinh Email: tuanlinhpc44@gmail.com