Honeywell C240M2301CON Analog Input Module for Building Control Systems

The C240M2301CON analog input module collects sensor signals inside Honeywell building control panels. This board converts temperature and pressure readings into stable digital values for system logic. Facility engineers depend on its consistent accuracy across long operating hours.

Input Channels and Component Count

The C240M2301CON supports 8 analog input channels for simultaneous sensor monitoring. Each channel accepts 0–10 VDC and 4–20 mA field signals. The circuit assembly carries 34 discrete components, including 8 input protection networks. Additionally, 8 precision scaling resistors normalize incoming voltage levels.

Physical Dimensions and Weight

This module measures 7.9 inches in length and 5.5 inches in width. Board thickness reaches 1.0 inch, while the unit weighs approximately 1.3 pounds. These compact dimensions fit standard Honeywell panel enclosures without modification. Consequently, technicians install replacements quickly during service visits.

Interface, Isolation, and Resolution

Two 34-pin edge connectors manage backplane communication and field termination. The C240M2301CON delivers 1500 VAC isolation between input circuits and logic ground. Analog-to-digital conversion achieves 12-bit resolution across the full input span. Therefore, the module preserves measurement accuracy in electrically noisy mechanical rooms.

Power Requirements and Energy Storage

The board draws 0.45 A from the 24 VDC supply rail. An onboard supercapacitor protects calibration data during brief power interruptions. This energy storage element retains parameter settings for roughly 14 days. Meanwhile, total consumption stays below 3.0 watts under normal operation.

Key Technical Specifications Summary

Installation and Application Notes

The C240M2301CON slides directly into Honeywell panel slots without adapters. Engineers configure input ranges through the building management software interface. Technicians confirm sensor calibration before returning each board to service. As a result, measurement reliability improves and commissioning time shortens considerably.