The A1000 series converter boxes convert RS232 communications signal levels to the correct electrical signals required by RS485.

The A1000 can also operate as repeaters for RS485. RS485 repeaters are required to extend communications bus lengths or allow more than 32 devices to be connected to a communications bus.

The A2000 series converter boxes convert RS232 communications signal levels to the correct electrical signals required by RS485.

The A2000 can also operate as repeaters for RS485. RS485 repeaters are required to extend communications bus lengths or allow more than 32 devices to be connected to a communications bus.

The A2400 is an RS232/RS485 converter designed to interface all DGH RS485 products to radio and leased telephone line modems. 

The A2400 is a bi-directional RS232/RS485 converter that provides RTS and CTS support. RTS (Request-to-Send) and CTS (Clear-to-Send) are handshaking signals for  where data flow must be synchronized to a communications device, such as a radio or leased line modem.

The DIN-191 converter module converts RS232 signal levels to the correct electrical signals required by RS485.

The DIN-192 module operates as an RS-485 repeater. RS485 repeaters are required to extend communications bus lengths or allow more than 32 devices to be connected to a communications bus.