1、Electric isolation technology is used to isolate electrical and ground circuits of two RS-232 devices 2、The protects the communication device from the interference and overload of the power-off circuit, which significantly improves the reliability and stability of the communication system 3、Using double-line balance transmission, the original RS-232 interface single-ended transmission mode is increased, and the communication distance is added 4、The size of the small size requires no special requirements for non-external leads, and the use is convenient 5、Widely used in RS‑232 point‑to‑point communication, multi‑user terminals and host connections, RS‑232 remote control systems, billing terminal controls switch Item Type: Photoelectric Isolator Model: RS232 Material: ABS Function: Protection Type Multiuser Terminals and Hosts, Etc. Scope of Application: Widely Used in Electricity, Telecommunications, Railway, Post Office, Financial, Bank, Securities, Program Control and Other Administrative Organs Interface: EIA RS-232 and CCITT V.24 Asynchronous Agreement Connector: DB9/25 Connector on Both Sides Transfer Mode: Asynchronous, Full Duplex, Full Transparency Communication Rate: 0-57600BPS Power Supply Range: Power Supply from RS-232(TXD RTS or DTR) Use Environment: 0℃ -50 ℃, Relative Humidity: 5% -95% 1 x Photoelectric Isolator