Crestron Control Port Expansion Module - C2N-IO-CNBS is backordered and will ship as soon as it is back in stock.
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Crestron C2N-IO-CNBS – Control Port Expansion Module for Crestron 2- and 3-Series Processors
Product Overview
The Crestron C2N-IO-CNBS is a control port expansion module for Crestron 2-Series and 3-Series control systems, adding RS-232 serial ports, IR/Serial output ports, relay outputs, and digital I/O to the control processor via Cresnet connection — expanding the device control I/O count for installations where the control processor’s built-in port count is insufficient. It connects to the Crestron 2-Series or 3-Series processor’s Cresnet bus and presents additional control I/O to the SIMPL program for display control, lighting, shading, and AV device serial/relay control.
Key Features
- Cresnet-Connected I/O Expansion: Adds RS-232, IR/Serial, relay, and digital I/O to 2-Series/3-Series control processors via Cresnet bus without additional Ethernet or control wiring.
- RS-232 Serial Ports: For display, projector, and AV device serial control beyond the processor’s built-in COM port count.
- IR/Serial Outputs: IR and serial outputs for additional AV device IR and serial control ports.
- Relay Outputs: For lighting, shading, and device switching control.
- Digital I/O: Digital input and output for contact closure sensing and device triggering.
Technical Specifications
| Model | C2N-IO-CNBS |
| Bus | Cresnet |
| Compatibility | Crestron 2-Series and 3-Series control systems |
| I/O Ports | RS-232, IR/Serial, relay, digital I/O — refer to Crestron data sheet for port counts |
| SKU | C2N-IO-CNBS |
Competitor comparison: not applicable for this product.
Frequently Asked Questions
Is C2N-IO-CNBS compatible with 4-Series processors?
The C2N-IO-CNBS is designed for Crestron 2-Series and 3-Series processors. For 4-Series, the C2N-IO is the compatible expansion module. Contact Creation Networks for I/O expansion module guidance for your specific processor.
What is the warranty?
Crestron provides a standard 3-year limited warranty. Contact Creation Networks.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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