RS-232 to RS-485/422 converters external-powered UT-218 with photoelectric Isolation NEW

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Product Description:

UT-218 photoelectric isolated interface converter compatible with RS-232C, RS-422, RS-485 standard, RS-232 single-ended signal into a balanced differential RS-422 or RS-485 signals, built-in photoelectric isolation, can provide up to 2500Vrms isolation voltage, with fast transient voltage suppression protection and discharge tube, this protection is designed to protect the RS-422/RS-485 interface, using today's advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR) transient voltage suppressor and discharge tube, the TVS tube and discharge tube in a high-impedance state under normal circumstances, when the high-energy shock the TVS tube and discharge tube at both ends subjected to instant high speed can be two The end of the impedance is reduced, the absorption of a large current, so that the voltage across it is clamped at a predetermined value, and to protect the back of the circuit element is not damaged due to transient high pressure shock. This protection can effectively inhibit lightning (LIGHTNING) and ESD per line 1500W lightning surge protection power line surge voltage generated by a variety of reasons and transient overvoltage, capacitance and the extremely tiny guarantee RS-422/RS-485 interface high-speed transmission. RS-232 interface port via a DB9 female connector is compatible with standard RS-232C interface connected to the RS-422, RS-485 side through the RJ-45 and DB9 male connector is connected. Converter with internal zero delay automatic transceiver conversion, unique I / O circuit automatically controls the data flow direction, without any handshaking signals (such as RTS, DTR, etc.), without the jumper settings to achieve full-duplex (RS- 422), half-duplex (RS-485) mode conversion, plug-and-play. Ensure that it meets all the existing communication software and interface hardware, do not need to modify any software RS-232-based work. 
UT-218 optical isolation interface converter for point-to-point and point-to-multipoint communications provide a reliable connection, point-to-multipoint each converter can be allowed to connect 128 RS-422 or RS-485 interface devices, data communication speed 300-115.2KBPS, with a power indicator and data flow indicator to indicate fault conditions, communication support RS-232 to RS-422, RS-232 to RS-485 conversion.

Performance parameters:

? Baud rate: 300BPS-115.2KBPS.

? Max distance: 5 KM(9,600BPS).

? Max connection: 128 RS485 or RS422 devices.

? Working mode: Auto-adapt: RS485/422.

? Photoelectric isolation: 2.5KVrms/500VDC isolation, dedicated DC/DC

     module 1500W lightning strike and surge protection .

? Dimensions: 97mm×65mm×22mm. ±15KV ESD protection and grounding

      interference protection for each RS485/422 line.

? Interface: From DB9 female to DB9 male and RJ-45 connector.