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Your cart is empty. When should I use a RS232 to RS485 converter?
RS232 to RS485 converters are mostly used in industrial and commercial environments. The reason is that the RS485 converter can be used for multi-drop networks, meaning that you for example can connect multiple RS485 devices to one computer. Up to 32 devices can be connected in one network to communicate on a single pair of wires (plus a ground wire). This type of communication is called half-duplex communication. Most quality RS485 converters can communicate in this manner of up to 4000 feet (1200 meters). The RS485 converter is also fairly resistant to noise which is one more reason why it is favored in industrial environments.
Guard Your Value Equipment
A built-in transient voltage suppressor (TVS) supports 600W anti-surge, effectively guard your value devices from the hazards of transient surges, lightning.
No Driver Required
Auto control data flow direction of I/O circuit feature makes it fully plug-and-play.
Port-Power
No external power supply required, it is port-powered from RS232 data lines and low consumption electricity.
Mini-Size with 2 screws and terminal block
Specific
Standard: EIA/TIA RS232C / RS485
Baud Rate: 300bps - 115.2kbps
Working Mode: 2 wire asynchronous half-duplex
Communication Mode: Point to Point, Point to Multipoint
Transmission Media: Twisted Pair (Wire diameter >= 0.5mm) or Shielded wire
Transmission Distance: RS232 Interface: up to 50ft (15m); RS485 Interface: up to 4000ft (1.2km)
Surge Protection: RS485 Interface, Each wire 600W
Original Packing Included
1 X DTECH RS232 to RS485 Converter
1 x Terminal Board
1 x User Manual
triphase
2025-08-13 17:03:39
I couldn't ask for more, this thing works great! I needed to send some commands to an RS-485 peripheral to provision it, and it worked perfectly. Its totally bus powered (but provides option for external 7-9vdc power on the RS-485 side).The most important thing when using RS-485 half duplex is fast control of the DE (driver enable) line. This thing handles it automatically and perfectly. Able to send RS-485 commands via terminal and when not sending it releases the transmit line quickly to switch back to receive (I was originally contemplating putting one of these together out of a RS-485 transceiver IC, and piddling some TTL stuff together to handle the DE line switching, but for this price, I couldn't justify spending the time building it even if the components were free and sitting on the shelf.A good RS232-485 converter is a handy thing to have in your toolbox for debugging if you work with any RS-485 devices, and this one is well built and super easy to use (it even came with a phoenix style screw terminal block, lol)
JR
2025-08-07 13:44:33
I just connected the 2 wires TX Rx and started configuring my devices.
Junior Moya
2025-07-10 18:38:15
Excellent items
Dataview
2025-06-15 12:54:03
Try a NULL modem at one end of the RS232. If you use these to extend your RS232 range, you may have to use a NULL modem, depending on the application of your devices DTE or DCE.
JG
2025-05-29 15:29:24
I bought this to use with Modscan32 and CAS Modbus scanner. This device needs the RTS/DTR signals enabled in order to read more than a couple of modbus registers at a time. Modscan32 allows this - CAS Modbus scanner does not. Also, I could not get it to work at all if 120 ohm termination resistors were installed. I've bought a number of these inexpensive devices and most of them have this same issue. I would recommend looking for the CH340 USB version on Amazon which is a bit less expensive and works quite a bit better as it gets power from the USB port.
Steven Region
2025-04-28 17:38:00
Easy to use, works great, great value!
HAPPY
2025-04-19 18:52:29
This works very similar to the B&B electronics 232 to 485 converter.Operates as expected in the detachable pen outboard is an improvement over the B&B because if the screws strip out or the connector breaks you can just replace it with a d-sub 9 pin out termination block or just a serial cable cut off.
buster
2025-04-18 17:30:50
Packed well. Shipped as or better than expected. Trying to make work on 485 converting to 232 with Keyspan to usb. Experimenting so can't speak to anything but appearance. Seems like good quality. Will update if I can get project working. I give 5 stars based on this in mind.
Dean Machine
2025-04-02 14:13:20
- great value- built well- worked out of the package- no fuss, no drivers!
Customer
2025-03-22 12:03:28
I used this to connect a USB to rs232 cable to an rs485 connection on a tenveo ptz camera. Did the job well.
RAJESH
2025-01-26 16:32:18
If its original dtech it will work.
Dan
2025-01-23 14:24:49
Wired it up + to + and - to - and started my Modbus testing software and was able to talk to device right away. No fuss - just worked :)
Vikranth Ghandi
2024-11-21 10:02:36
Works fine
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