Black Box Async RS-232 to RS-485 Interface Converter

Black Box Async RS-232 to RS-485 Interface Converter

Operates in half- or full-duplex over two or four wires.

Works with or without transmit "echo."

Also available in four other configurations. See Similar Products.

The Async RS-232 to RS-485 Interface Bidirectional Converter, DB9 Female to DB9 Female, features a DB9 female connector on the RS-232 side, and a DB9 female on the RS-485 side. It converts your unbalanced RS-232 signals to balanced half-duplex RS-485 signals.

• The RS485 driver is automatically enabled during each spacing state on the RS232 side.


• Up to 32 RS485 devices can be attached to create a large multi-drop network.


• 2-wire operation half-duplex only.


• Async (data leads) only.


• Operates in point to point or multipoint applications.


• Transmit data up to 115 kbps or at distancesup to 4000 ft.