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
Commercial Grade Bi-Direction RS232 to RS485 Converter used in Industrial Long-haul Communication up to 4000ft (1200 meters)
Mini RS 232 to 485 serial adapter enables the connections of multiple bus nodes and 32 devices can be joined in RS-485 network
Automatic RX - TX Control; RS-232 to RS-485 Converter controls the “Receive” and “Transmit” modes automatically
Up to 115.2kbps baud rate (auto-detect) can be applied to point to point two wire half duplex and point to multi-point two wire half duplex communication
A built-in Transient Voltage Suppressor (TVS) supports 600W anti-surge protection on each line of RS485 link which effectively guard devices from damage