Features 1.Perfectly Compatible: HXAD 2118C industrial grade optical isolation interface converter is compatible with RS 232 RS 422 RS 485 standard and can convert single ended RS 232 signal to balanced differential RS 422 or RS 485 signal. 2.Interface Connection: The RS 232 interface is connected to the PC serial port via a DB9 female connector, and the RS 422 RS 485 end is connected via a DB9 pin or a convenient six bits terminal block with plug and play is provided. 3.Multi Ways: The HXAD 2118C optical isolation interface converter provides reliable connectivity for point to point and point to multipoint communications, allowing the connection of up to 32 RS 422 or RS 485 interface devices from point to multipoint. 4.Communication Situation: Data communication rate from 300?115 2KBPS, three kinds of indicators promptly indicate the data flow communication situation, the supported communication methods are RS 232 to RS 422 RS 232 to RS 485 conversion. 5.Widely Used: Widely used in industrial automation control systems, one card access control systems, parking systems, automatic banking systems, bus fare collection systems, dining hall vending systems, company staff attendance management systems, highway toll station systems, etc. 6.High Speed Data Communication: RS232 to RS485 RS422 converter adopts industrial grade optical isolation type RS 232 interface 15KVESD protection, RS 422 RS 485 high speed data communication between devices. 7Safety Protection: RS232 to RS485 RS422 converter with isolation voltage of 3500VRMS, 500VDC continuous; protection level of RS 232 interface 15KVESD protection, RS 422 RS 485 interface Lightning surge protection of 600W per line. specificationItem Type: RS232 to RS485 RS422 Converter Material: Metal Interface Features: Interface Compatible with EIA TIA RS 232C, RS 485 RS RS 422 Standard Electrical Interface: RS 232C Interface DB9 Hole Type Interface, RS 422 RS 485 Interface DB9 Female Connector and Equipped with Six Position Terminal Block Transmission Medium: Twisted Shielded Wire Working Mode: Asynchronous Half duplex or Asynchronous Full Duplex Signal Indication: Three Signal Indicators TXD, RXD, Power Isolation Degree: Isolation Voltage: 3500VRMS, 500VDC Continuous Protection Level: RS 232 Interface 15KVESD Protection, RS 422 RS 485 Interface 600W Per Line Lightning Surge Protection Transmission Rate: 300-115-2KBPS Transmission Distance: 0-5KM/0-16404.2ft PackageList 1 x RS232 to RS485 RS422 Converter 1 x Power Adapter 1 x Chinese Manual 1 x Cable 1 x Six Bits Terminal Block NoteProblem solving LED indicators: easy to check power connection status and balanced differential signal status. Good metal housing ensures fast heat dissipation.