RS-232 Relay

RS232 Relay at a Glance...

• Relays Installed on a Circuit Board
    - Highly reliable under demanding conditions
• RS232 Interface with Choice of Connector
    - Onboard DB-9 connector
    - Screw terminal serial connection
    - Off-board DB-9 cable option
    - Connects to any standard COM port
• Industry Leading ProXR Command Set
    - Program in almost any language
    - Send precise commands to control relays
    - Control individual, grouped, or all relays
    - Toggle, flash, and timing commands
• ProXR AD8 Command Set
    - Read 0-5V sensor inputs
    - Monitor external sensors or contact closures
    - Relay Activator: inputs can directly control relays

Looking for a reliable RS-232 relay? These controllers connect to any standard COM port and offer simple relay control for switching lights, motors, and devices.

RS-232 Relay Controller Boards

RS-232 Relay Controllers allow you to control relays using a standard DB-9 serial connection. These boards use onboard firmware to control individual relays, relay banks, or all relays at once using simple serial commands with automatic status refreshing.

RS-232 Relays connect directly to computers and third-party control systems through any available COM port at standard baud rates, making them easy to integrate into automation software, data collection systems, and industrial control environments.

These controllers are ideal for applications that require reliable, wired communication with a single control device.

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ZRS Modules

The ZRS Module is available with three different RS-232 connection options, allowing you to choose the wiring style that best fits your application.

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The ProXR Command Set

Our onboard firmware is built around the ProXR Command Set - one of the most powerful and versatile command libraries available. The command library includes an extensive range of functions for relay control, timing, configuration, and status monitoring - giving you precise, access to every feature of the board.

Developers can integrate ProXR commands into virtually any programming environment through virtual COM port communication. For users who prefer not to write code, compatible control software is available, offering a straightforward interface built on the same command architecture.

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Selecting a RS-232 Relay

Choose how many relays you need to get started. Boards are available with up to 32 relays onboard and can expand to 256 total relays.