Bộ Chuyển Đổi RS-232 Sang RS-485/422, Cách Ly Quang Điện, Chống Sét, Max 1.2Km (UT-217E)

Giới thiệu

Compatible with the Recommended Standards of RS232C, RS422 and RS485, UT-217E photoelectric isolation interface converter can convert the single-ended RS232 signal into balance differenced RS422 or RS485 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/RS485 interface with advanced TVS ( TRANSIENT VOLTAGE SUPPRESSOR ) technology adopted. Under normal conditions, the TVS tube is in the state of high resistance. However, when both ends of the TVS tube are hit by a transient high energy, the impedance at both ends can be depressed by the TVS at a very high speed, and after absorbing a high current, the voltage between the two ends is suppressed and kept at a pre-set value, therefore no damage is caused to the electrical components behind by the transient high voltage impact.The protector can effectively restrain lightning or ESD (electro static discharge) with a protection voltage of 600W on each line for lightning surge and surge voltage or transient over voltage possibly caused up by various reasons, and  at the same time, a high-speed transmission of RS422/RS485 interface is ensured by the tiny capacitance between the poles. Through a DB9 female connector RS232 interface is connected to other interfaces compatible with RS232C standard, and for RS422 and RS485 interfaces RJ45 and 4PIN connector is to be used for connection. The unique I/O circuit of the internal zero delay auto transceiver contained in the converter controls the data stream direction automatically without any handshaking signal ( for example RTS, DTR etc ). The converter is plug-and-play without any jumper settings needed for mode shift between full duplex (RS422) and half duplex (RS485). 

Feature

1.     Interface characteristic: compatible with the standards of RS232C and RS485/RS422 issued by EIA/TIA.
2.     Electric interface: DB9 female connector for RS232 interface input end, RJ45 and 4PIN connector for RS422/RS485 interface output end.
3.     Protection grade: +/-15KV ESD protection for RS232 interface,and 600W surge protection each line for RS422 and RS485 interfaces.
4.     Isolation degree: isolation voltage 2500Vrms 500DC non-stop.
5.     Operation mode: asynchronous half duplex or asynchronous full duplex.
6.     Signal indication: 3 pilot lamps for Power (PWR), Send (TXD) and Receive (RXD).
7.     Transmission media: twisted pair cable or shielded cable.
8.     Transmission rate: 115.2K BPS to 300M, 38.4K BPS to 2.4KM and 9,600 BPS to 5KM.
9.     Dimensions: 93mm×74mm×22mm.
10.  Working circumstance: -40℃to 85℃, relative humidity 5%-95%. 

 

Download Datasheet  : UT-217E

Download Hướng dẫn: UT-217E

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