RS232 to RS485/RS422 Industrial Class Photoelectric isolated Converter

The DZC-ATC-108N Photoelectric Isolation Interface Converter is compatible with the RS-232C, RS-422, RS-485 standards and capable of converting a single end RS-232 signal into RS-422 or RS-485.

The built in photoelectric isolator offers a 3500V isolation voltage and the rapid Transient Voltage Suppressor (TVS) can effectively protect against lightning and ESD. It provides a 600W lightning strike and surge protection on each line.

Connects to a PC via a DB9 female connector at the RS-232 side, and connections on the RS-422 or RS-485 end via a convenient 7-port plug-in terminal.

The DZC-ATC-108N Photoelectric Isolation Interface Converter can be used for point to point or point to multi-point communications. The point to multi-point allows the connection of up to 128 devices on the RS-422 or RS-485 networks with data transmission speed of up to115.2KBPS.

LED indications are available for power supply availability and communication flow.

An external power supply of 9-24VDC is required to power up the device.






4-port RS-485 hub.


The DZC-ATC-1204 is an industrial RS-485 bus splitter hub, providing 4 separate channels.

It supports a maximum transmission speed of 115.2KBPS.

This device has inbuilt photoelectric isolation technology. The 600W surge protection circuit provides 3500V isolation, effectively protecting the device against lightning and ESD. It has been specifically designed for outdoor engineering applications.

The DZC-ATC-1204 uses an identification circuit that can detect direction of data and switch control automatically. This solves the time lag issues of RS485 circuits during reception and transmission.

The interface is compatible with the EIA/TIA RS-232C, RS-485 standard

LED indications are available for TX and RX on the RS232 uplink port and port malfunction for the 4 RS485 ports.

The Uplink is an RS232 connection which can be used to connect the RS485 network to a PC.

This device is ideal solution to make an RS485 network more robust. Each port has short and open circuit protection. This makes the network more resilient to single device failures.