C11G Multifunction CNC Breakout Board with Spindle Speed Control & Relays

C11G Multifunction CNC Breakout Board

The C11G Multifunction CNC Board is a flexible breakout/interface board designed to simplify the wiring inside your CNC control system. It helps connect your CNC controller, motor drivers, spindle or VFD, limit switches, E-stop, relays, and other machine accessories in a cleaner and more organized way.

This board is ideal for CNC builders who want more than a basic breakout board. With built-in spindle speed control, relay outputs, buffered inputs and outputs, screw terminals, status LEDs, and safety charge pump support, the C11G helps reduce wiring mistakes and makes your control box easier to set up, test, and troubleshoot.

Why Choose the C11G?

• Cleaner CNC wiring: Provides an organized connection point between your controller, drivers, switches, spindle control, and accessories.
• Built-in spindle speed control: Helps control compatible spindle/VFD setups from your CNC control software.
• Integrated relay outputs: Includes electromechanical relays with normally open and normally closed positions for controlling spindle enable, coolant, vacuum, dust collection, or other accessories.
• Buffered inputs and outputs: Helps improve signal reliability between your CNC electronics.
• Safety charge pump support: Helps prevent outputs from activating unless the CNC control software is properly running.
• Status LEDs: Input and output indicator lights make setup and troubleshooting much easier.
• Screw terminal connections: Easier and cleaner wiring compared to direct pin connections or soldering.
• Flexible input configuration: Pull-up and pull-down selection allows the board to match different switch and wiring setups.

Main Features

• IEEE 1284 standard compatible
• Pull-up or pull-down input selection
• Buffered inputs and outputs
• Microcontroller-based safety charge pump
• Built-in variable spindle speed control
• Electromechanical relays with NO and NC positions
• Status LEDs on input and output connections
• Screw-on terminals for easier wiring
• External enable pin
• TTL 5VDC signal logic
• Works with popular CNC hardware and software setups

Input / Output Pin Information

Customer-Friendly Explanation

The C11G acts as the main wiring hub for your CNC control box. Instead of trying to connect every switch, relay, driver, and spindle-control wire directly into your motion controller, the C11G gives you labeled terminals and built-in features that make the whole system easier to wire and maintain.

If you are building or upgrading a CNC machine and want a more complete breakout board with spindle control, relays, safety features, and easy troubleshooting, the C11G is a strong choice.

Common Uses

• CNC router control boxes
• CNC mill retrofits
• CNC plasma control systems
• Mach3-style CNC setups
• Spindle or VFD control wiring
• Limit switch and home switch wiring
• Relay control for coolant, vacuum, dust collection, or spindle enable

Compatibility Notes

• This board is not a standalone motion controller.
• It is a breakout/interface board used with a compatible CNC controller or control system.
• Confirm compatibility with your CNC software, motion controller, motor drivers, spindle/VFD, and wiring setup before ordering.
• For spindle or VFD control, verify your VFD input requirements and wiring before connecting.