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Editorial Review
Asynchronous Half Duplex Communication To have a PC in charge of controlling a given process in long haul data acquisition and control applications, this converter allows to interface your devices using an RS232 communication link to an RS485 link and vice-versa. Double Protection A built-in transient voltage suppressor (TVS) enables you to get double 600W lightning surge protection against the lightning strike over RS485 link, and 15KV static protection over RS232 link effectively protect your value devices against high voltage spikes. Simple Operation ADDC (Automatic Data Direction Control) function can detect the incoming or outgoing data and automatically switch into the send or receive mode, then you don't have to worry about the data collision problems. For RS485 2 wire system, it only requires three lines (RX, TX and GND) to get a RS232 to RS485 conversion, making it great for troubleshooting the serial system, fully plug and play. Up to 32 devices can be connected on one network to communicate over a single pair of wires (plus a ground wire), so multiple RS485 devices could be connected to one PC without repeater. Specific RS232 Link - 9 pin female port. RS485 Link - 9 pin male port, 4 position terminal board. EIA/TIA RS-232C, RS-485 specification. Transmission Distance - 4000ft over RS485 link, 50ft over RS232 link. Transmission Media - twisted pair (>=24 AWG ) or shielded cable. Applications Computer Factory industrial automation control system Micro controller (MCU) Door safe / Parking system SCADA (supervisory control and data acquisition) ... Package Content 1 x RS-232 to RS-485 Converter 1 x Terminal Board 1 x User Manual

Features
1) 600W double lightning surge protection and 15KV static protection protects your value devices against high voltage spikes created by either by static electricity or by surges in the supply voltage.
2) TX and RX indicators enables you to easily know the status of sending or receiving data respectively.
3) The passive bi-directional RS232 to RS485 converter supports reliable signal transmission over long distance: up to 4000ft over RS-485 link at a high speed
4) Supports 2 wire half duplex communication, point to point and point to multi-point network (up to 32 RS-485 devices).
5) The baud rate will be detected and adjusted automatically, up to 115200 bps. It's port powered from RS-232 signal, no external power required.

Specification
Binding : Electronics
Brand : DTech
Color : Blue
EAN : 0600649504718
Label : Guangzhou DTECH Electronics Technology Co.,Ltd
Manufacturer : Guangzhou DTECH Electronics Technology Co.,Ltd
Model : DT-9004
PackageDimensions_Weight : 0.20 pounds
PackageDimensions : L:6.50 X W:4.20 X H:2.20
ProductGroup : PC Accessory
ProductTypeName : CONSUMER_ELECTRONICS
Publisher : Guangzhou DTECH Electronics Technology Co.,Ltd
Size : Mini Size
Studio : Guangzhou DTECH Electronics Technology Co.,Ltd
Title : DTECH Industrial Grade Port-Powered RS232 to RS485 Converter Adapter with TX/RX LED Lights for Industrial Long Haul Serial Communication