Camden CM-222/A42N Touchless Switch Narrow Jamb
Overview
The CM-222/A42N is a narrow-profile touchless exit switch using active infrared microburst sensor technology for hands-free door activation. Mounted directly on the door jamb (1-3/4" width), it connects to 24VDC electromagnetic locks and functions as either a standalone activation device or an integrated access control element. Detection range spans 2 to 8 inches — adjustable to match your installation depth — and the 10ms response time keeps door transit smooth. IP65 rating handles moderate moisture without enclosure upgrades, making it suitable for both interior commercial corridors and light-duty outdoor vestibules.
Compatibility
The CM-222/A42N operates with any 24VDC electromagnetic lock or strike rated for 1A at 30VDC. It supplies dry contacts (Common/Normally Open/Normally Closed configuration) that connect directly to standard access control panels, electric strikes, or magnetic locks. The narrow jamb form factor fits standard 4-7/8" door frame openings without modification. Built-in relay logic supports adjustable time delay (0.5 to 20 seconds), so door-hold duration configures independently of sensor triggering. Blue and green LED indicators (factory default: blue standby, green triggered) can be controlled by the sensor or by external relay logic — useful for status annunciation or integration with guard station displays.
Installation Notes
Requires 12 to 24 VDC supply at 45 mA peak current — low enough for standard access control power modules without dedicated conditioning. Do not apply AC voltage; damage will result. Mount the unit vertically on the jamb with the infrared lens facing the approach path, typically 36-48 inches from the floor for standing users. Detect-distance adjustment (screwdriver potentiometer) compensates for mounting depth variation. Temperature operating range is -13°F to 122°F; avoid direct water spray or submersion despite IP65 rating.
