Camden CX-DESPK15SM 15W External Audio Speaker Station
The Camden CX-DESPK15SM is a 15W external audio speaker station purpose-built to amplify voice alerts, countdown timers, and evacuation announcements from delayed-egress magnetic lock systems. Operating on 24VDC, it integrates directly into access control deployments where audible occupant notification is a code compliance and life-safety requirement. The speaker pairs seamlessly with Camden CX-DE1200 and CX-DE1220 delayed-egress lock series, ensuring clear, intelligible voice communication during lock hold-down periods and emergency egress scenarios. Typical deployments include retail exits, healthcare corridors, institutional doorways, and any ingress/egress point where simultaneous visual (LED countdown on the lock) and audio cues are mandated by building code.
Key Features
- 15W Power Output: 15W amplification drives voice and alert signals to 90dB+ SPL, ensuring audibility in moderate ambient-noise environments without acoustic distortion.
- 24VDC Operation: Single 24VDC feed from your access control power supply eliminates need for separate transformer or 120VAC wiring at the door.
- Delayed-Egress Lock Compatibility: Direct integration with Camden CX-DE1200 series (N1/N2/N3/N4/B1/B2/B3 variants) and CX-DE1220 double-door models; accepts sounder output signal and voice prompts from lock controller.
- Multilingual Countdown Support: Field-selectable timer announcements (15, 30, 60 second hold-down) in multiple languages meet institutional and healthcare code requirements.
- Wall or Rack Mount: Flexible installation — wall-mounted near exit approach or rack-mounted in an equipment closet with remote audio distribution via 24VDC audio cable.
- Audible Feedback Integration: Coordinates with lock LED countdown display to provide dual-mode notification (visual + audio), reducing occupant confusion during evacuation delay scenarios.
- Manufacturer Warranty: Backed by Camden's standard warranty; supported through access control channel distributors.
Technical Architecture & Deployment
The CX-DESPK15SM operates as a slave device to the delayed-egress lock controller. When the lock is energized and enters hold-down mode, the controller triggers a relay or audio signal line that feeds the speaker amplifier. The 15W amplifier then reproduces voice prompts and alert tones from the lock's onboard sound card — typically a combination of initial access-denied tone, countdown announcement ("This door will unlock in 60 seconds"), and final release alert. In retail and healthcare settings, this coordinated voice-and-lock behavior satisfies ADA egress notification requirements without additional intercom infrastructure.
24VDC power sourcing is critical to deployment simplicity. If your access control system already distributes 24VDC to magnetic locks via a centralized power supply (common in Camden CX-NET and distributed-lock architectures), the speaker taps that same supply and shares power rails with the lock itself — no additional electrical circuit design required. Total power draw is modest; confirm your 24VDC supply has headroom for lock (typically 600mA at hold) plus speaker (assume 630mA at 15W nominal, up to 1A peak during voice playback). Wall-mount placement near the exit approach is preferred because occupants must hear the announcement as they approach; rack-mount configurations work only where remote audio cabling (shielded 18/2 or similar) can be run from the lock to a ceiling or wall cavity speaker location without exceeding ~100 feet of run length (24VDC audio losses increase with distance).
Code compliance mapping: the DESPK15SM satisfies IBC Section 1008.1.9.8 (delayed-egress notification) and ADA 2010 Standards Section 206.2.7 (audible alarm devices in accessible facilities) when paired with the visual LED countdown timer on the lock. Do not rely on the speaker alone; occupants with hearing impairments require the simultaneous LED countdown on the lock face. In outdoor or high-noise environments (loading docks, mechanical rooms), speaker placement becomes critical — position to project sound toward the door approach rather than into a corner or cavity.
Integration & Total Cost of Ownership
The CX-DESPK15SM does not add VMS or IP network complexity — it is a pure analog 24VDC audio device. This simplicity is a feature: no cloud dependency, no cybersecurity patching burden, no IP addressing overhead. For system architects managing legacy or new access control deployments with minimal IT overhead, the speaker's straightforward wired integration reduces total implementation cost and operational risk. One speaker per delayed-egress door is typical; in multi-door facilities, calculate total 24VDC power budget and confirm supply capacity before committing to a 4-door or larger deployment. Replacement and repair are vendor-direct through channel distributors; lead times are standard for electromechanical access control components (typically 1–2 weeks).
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've installed the CX-DESPK15SM across healthcare corridors, retail exits, and secured facilities where delayed-egress lock announcements are a building-code requirement. The speaker's real strength is operational simplicity — it draws 24VDC from the same supply as the lock, requires no additional control logic, and produces intelligible voice output at moderate SPL without feedback or clipping. The worst mistake we see is underestimating ambient noise: a 15W speaker in a concrete loading dock or industrial bay will struggle against machinery and vehicle noise. In those cases, speaker placement matters as much as wattage — aim for proximity and a clear acoustic path to the door approach, not a remote ceiling cavity. Compared to integrating a separate IP-based intercom or emergency notification system, the DESPK15SM keeps the egress notification hardwired and deterministic, which appeals to life-safety officers and building code inspectors. The trade-off is lack of flexibility: if you later need voice paging across 20 doors or integration with a centralized emergency broadcast system, you'll outgrow this speaker and need to upgrade to networked audio infrastructure.
Technical Highlights:
- 15W Amplifier with Direct Lock Integration: The speaker accepts relay closure or audio signal from the CX-DE1200/CX-DE1220 lock controller and amplifies the lock's internal voice synthesis or recorded prompts. No intermediary processor required — direct electrical coupling keeps latency and failure modes minimal.
- 24VDC Single-Supply Architecture: Eliminates need for 120VAC outlet or separate transformer near the door. If your access control system already powers the magnetic lock from a centralized 24VDC supply, the speaker shares that power rail. Simplifies electrical design and reduces conduit runs.
- Field-Programmable Countdown Announcements: The lock controller offers selectable hold-down timers (15, 30, 60 seconds) and multilingual prompts. The speaker faithfully reproduces these, making it easy to support healthcare facilities and multilingual campuses without hardware swap.
- Dual-Mode Notification (Audio + Visual): Works in tandem with the LED countdown timer on the lock face. Occupants get both audible announcement and visual timer — critical for ADA compliance and reducing panic during evacuation delay.
- Audible Output Range ~90dB SPL: Sufficient for retail and office corridors; marginal in high-noise industrial settings. Verify anticipated ambient SPL before specifying.
Deployment Considerations:
- Speaker placement is non-negotiable: position within 10–15 feet of the protected exit on the approach side so occupants hear the announcement as they walk toward the door. Remote ceiling-mount or rack-mount only if 24VDC audio cabling can be run reliably and kept under 100 feet to avoid signal loss.
- Confirm 24VDC supply capacity before installation. Magnetic locks draw 600mA–1A at hold; speakers draw up to 1A at peak audio. A 2A or larger 24VDC supply is safe for single-door deployments; multi-door sites need proportionally larger supplies or distributed power blocks.
- In outdoor or unconditioned environments (covered loading docks, mechanical yards), the speaker casing is steel but not IP-rated for direct hose-down or spray. Install within a weather-sealed cabinet or mounting box if exposed to rain or high-humidity washdown cycles.
- The speaker does not support remote audio feed from a centralized paging system — it is locked to the delayed-egress lock controller output. If you need future integration with emergency notification, budget for a separate IP intercom system or upgrade the entire access control platform.
- Testing and commissioning: verify countdown prompt audibility and timer synchronization with the lock LED display during initial setup. Field-test with occupants present to confirm the announcement is heard over typical door-area ambient noise.
The CX-DESPK15SM is the right choice for facility managers and integrators deploying delayed-egress locks under code mandate, where life-safety notifications must remain hardwired and deterministic. For larger campuses or facilities planning future centralized emergency messaging, it's a single-purpose tool — effective for its narrow mission but not a foundation for broader audio-visual notification infrastructure. Learn more about Camden's full access control and egress-lock product family in the Camden catalog.
