Camden CX-DA400 Door Alarm with Relays and Network Integration
The CX-DA400 is a dual-function door alarm and access control interface designed for security integrators deploying networked door monitoring and access management systems. This double gang-mount unit combines alarm functionality with relay outputs and programmable timing controls, enabling integrators to implement coordinated entry control strategies across multi-door installations.
Overview
The CX-DA400 serves as a bridge between door hardware and network-based access control systems. It functions as both an alarm sensor and a control relay interface, allowing integrators to monitor door status in real time and trigger downstream actions—such as strike activation, buzzer alerts, or lighting control—through IP-based commands. The inclusion of a reset key enables manual override and emergency access scenarios without network dependency.
Key Features
- Dual relay outputs for controlling door strikes, buzzers, or auxiliary devices
- Programmable timer functionality for delayed activation and cycle control
- TCP/IP network communication protocol for remote monitoring and command execution
- Double gang electrical box mounting for standard wall installation
- Reset key for manual operation and emergency access
- Alarm output triggering on configured door events
- Compatible with 12V power supply systems (standard 12V DC operation)
- Integral status indicators for relay and alarm state verification
Integration and Compatibility
The CX-DA400 is optimized for systems where door access control and alarm monitoring converge. Its TCP/IP interface allows direct integration with network access control platforms, building management systems, and security monitoring solutions. Integrators can configure the unit's relay outputs to interface with any 12V-rated door strike, electromagnetic lock, or auxiliary device within the power budget. The timer functions enable timed strikes (typical 3–6 second pulses for security) or delayed alarm notifications, reducing false alerts in high-traffic entry points.
Deployment of the CX-DA400 assumes a 12V dedicated power supply with appropriate overcurrent protection. The reset key provides a hardwired bypass in scenarios where network connectivity is lost or when immediate manual access is required. This architecture is especially valuable in hybrid installations where some doors require networked control and others need standalone alarm capability.
Physical Configuration
The double gang form factor allows the CX-DA400 to fit within standard electrical boxes alongside other control modules, simplifying wiring consolidation in multi-system installations. The alarm and relay terminals accept standard 18–22 AWG wire, compatible with most integrator tool kits and field installation practices.
The CX-DA400 model number (often searched as CX DA400) identifies this specific relay and alarm variant within Camden's access control ecosystem. When specifying for multi-door deployments, confirm the TCP/IP infrastructure, power budget, and relay load ratings to ensure each door's control requirements are met.
Ted PerryPerspective based on aggregated and affiliated engineering team experience.
I've evaluated the CX-DA400 during the planning phase of a multi-building access control retrofit. This unit is a practical choice for integrators who need to consolidate door alarm monitoring with network-based relay control without deploying a full server-based access control system at every door.
Technical Highlights:
- TCP/IP Network Protocol: Enables remote monitoring and relay activation from any network-connected device or control platform, eliminating the need for dedicated alarm cabling back to a central panel.
- Dual Relay Outputs: Provides flexibility to control two independent circuits—typically one for the strike and one for a visual/audible alert—from a single mounting location.
- Programmable Timers: Allow field configuration of activation duration (strike hold time, alert pulse length) without return visits or firmware updates.
- Reset Key Override: Ensures that temporary network outages or misconfiguration do not lock occupants out of emergency exits.
Deployment Considerations:
- Verify that your TCP/IP network infrastructure reaches each door location with adequate bandwidth and latency guarantees. Wireless deployments should include wired fallback power for the reset key function.
- Size the 12V power supply for simultaneous relay activation across all connected CX-DA400 units; relay contacts typically draw 100–200 mA per circuit during activation.
- Test the reset key operation and manual strike activation before go-live to confirm that facility staff can respond to access failures without IT intervention.
The CX-DA400 is well-suited for campuses, multi-tenant facilities, and retrofit projects where you want to upgrade door control to IP-based monitoring without replacing existing door hardware. Pair it with a capable access control platform and you'll gain both real-time visibility and the ability to unlock doors remotely in emergency situations.
