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

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Product details

Management number	204018337	Release Date	2025/10/31	List Price	$67.95	Model Number	204018337
Category	Networking

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.

Transmit data up to 115 kbps or at distancesup to 4000 ft.
Operates in point to point or multipoint applications.
2-wire operation half-duplex only.
Async (data leads) only.
Up to 32 RS485 devices can be attached to create a large multi-drop network.
The RS485 driver is automatically enabled during each spacing state on the RS232 side.