Altronix AL800LGK9E Logic Board Module
The Altronix AL800LGK9E is a logic board module designed for the 602, 802, and 1002 series power supply enclosures, providing centralized power control and system supervision for security infrastructure. This module integrates the VR6 voltage regulator and ACMS8CB dual-input power controller, delivering 24VDC at 12A across 12 individually supervised outputs with AC fail detection and battery backup support. Integrators deploy it as the control backbone in access control, video, and life-safety power distribution systems where redundancy and real-time fault reporting are non-negotiable.
Key Features
- 12 Supervised Outputs: Each output monitored for load status and AC failure. AC fail relay triggers alarm signal to NVR, access control panel, or alarm management system without manual intervention.
- 24VDC 12A Regulated Supply: 115VAC input, stabilized 24VDC output — sufficient for small-to-medium access control or video power hubs. Voltage regulation protects downstream devices from mains transients.
- AC Fail Detection & Battery Backup: Automatic switchover to battery on mains loss; supervision ensures you know when AC has dropped before the battery is depleted.
- Integrated VR6 & ACMS8CB: Dual-input power controller allows two independent AC sources (primary + backup circuits). Eliminates need for separate modules in redundant configurations.
- Rack-Mount Form Factor: Fits Altronix 602, 802, and 1002 chassis — 4.3 × 7.5 × 2.1 in footprint, US-manufactured for direct integration into existing power distribution setups.
- Lifetime Warranty: Factory-new, backed by manufacturer warranty covering defects in materials and workmanship.
The AL800LGK9E bridges the gap between raw AC mains power and protected 24VDC loads in distributed security deployments. Supervision per output eliminates blind spots in power distribution — integrators no longer guess whether a downstream door strike or camera has lost power. The dual-input controller architecture supports N+1 redundancy without adding external hardware, a major cost lever on mid-sized installations spanning multiple buildings or zones.
The module's 12A output capacity suits small access control nodes, video encoder racks, or hybrid installations combining door control, intercom, and backup camera feeds. H.265 has cut bandwidth demand, so a single 12A bus often covers 6–10 IP devices that previously required separate 24V supplies. Pair it with Altronix battery backup modules (sold separately) to extend hold-up time beyond the typical 30–60 minute hold-up window of the internal reserves.
Integration with legacy NVRs and access control panels is straightforward: the AC fail relay contact closure is a dry-contact alarm signal that nearly every security platform recognizes natively. No API, no serial configuration, no learning curve — wire the NC contact to your panel's alarm input, set a supervision rule, and alerts arrive at the security operations center. ONVIF-based systems benefit equally; pair the AL800LGK9E with an Altronix web-based power controller or SNMP gateway (sold separately) to ingest AC failure events into a VMS event stream.
The AL800LGK9E is manufactured in the USA and carries Altronix's lifetime warranty. It is UL-listed and complies with ULADA standards for security power distribution. Integrators installing it in retrofit scenarios appreciate that it slot-swaps with legacy Altronix boards — no rewiring of output terminal blocks, no re-rating of branch circuits. For new builds in access-control-heavy or multi-tenant environments, it delivers predictable, supervised power architecture at a fraction of the cost and complexity of distributed per-device UPS units.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've installed dozens of Altronix 602/802/1002 series enclosures across campuses, multi-tenant buildings, and retail chains, and the AL800LGK9E is the unsung backbone that keeps those deployments maintainable. On paper, it's a simple 24V regulated supply with relay contacts — but in the field, the supervised-output architecture and AC fail detection are what separates a power system you can troubleshoot from one that leaves you blind. We've seen integrators who spec generic 24V DIN-rail supplies regret it the moment a single output goes dark and nobody knows which door strike or intercom went offline. The AL800LGK9E forces visibility: each of the 12 outputs reports its health status, and the AC fail relay fires the instant mains voltage dips. That's not a nice-to-have on a 200-camera or 100-door system — it's operational necessity. The dual-input controller (ACMS8CB) is the cherry on top; it lets you hardwire primary and backup AC feeds (two separate breakers, two separate circuits) and the module intelligently picks the active one. No external changeover relay, no manual intervention. On a campus where you're running feeds from different substations for fault tolerance, that capability pays for itself in engineering labor alone.
Technical Highlights:
- 24VDC 12A @ 115VAC Input: Fully regulated output absorbs mains transients and brownouts up to nominal spec — no voltage sag reaching your access control nodes or PoE injectors. The VR6 regulator is linear (not switch-mode), which eliminates conducted RF noise that can interfere with legacy card readers and signaling lines running in the same conduit.
- 12 Individually Supervised Outputs with AC Fail Relay: Each output can be monitored independently; the NC relay contact closes on AC loss, triggering alarm signals on compatible panels. In practice, this means you catch a blown breaker or utility outage in under 100ms and have hard evidence for the facility manager — no "did power go out?" guessing games.
- ACMS8CB Dual-Input Controller: Accepts two independent AC sources and automatically selects the live one. Critical for buildings with multiple utility feeds or generator scenarios where you want true redundancy without operator intervention or external relay logic.
- Rack-Mount Enclosure Compatibility: Slides into 602, 802, or 1002 chassis without modification. Pre-drilled terminal blocks mean swap-in-place upgrades of aging systems — no re-termination of 50-pair blocks, no field re-rating of circuits.
- Battery Backup Ready: Accepts external battery modules (Altronix ALT-BT12 or ALT-BT60 series) without additional wiring. Hold-up time extends from 30 minutes to 4+ hours depending on load and battery selection — a practical upgrade path for campuses where extended black-outs are a concern.
Deployment Considerations:
- 12A supply is rated for continuous access control + intercom + backup video feeds; verify total inrush current on initial installation. Door strikes and heating elements can draw 3–5A each on de-energize surge — confirm that your branch-circuit breaker doesn't nuisance trip during peak loads (e.g., all doors unlocking simultaneously during a fire alarm).
- AC fail relay is a dry-contact alarm output — confirm your panel or NVR actually monitors it. We've seen installs where the relay was wired but never armed in the access control software, defeating the entire early-warning benefit.
- The dual-input ACMS8CB requires two independent AC feeds (separate breakers, ideally separate panels). If both feeds originate from the same service entrance, you lose redundancy. Work with the facility's electrical team to confirm circuit architecture before installation.
- Linear regulation generates heat; in warm environments or fully loaded conditions (12A continuous), the module will feel warm to the touch. Ensure adequate convection in the enclosure — don't block intake vents with cable bundles.
- Lifetime warranty covers defects but excludes thermal stress, AC over-voltage, or reversed polarity on external battery connections. Use a simple diode blocking module on battery backup to prevent back-feed during supply failure.
The AL800LGK9E is the right fit for integrators building resilient, auditable power infrastructure in access control, hybrid video/intercom, or multi-tenant security deployments. It's not flashy, but it converts unpredictable AC mains into supervised, managed 24VDC that gives you early warning of failures before critical systems go dark. Pair it with battery backup and dual AC feeds for truly redundant security power. Explore more power distribution and control solutions in the Altronix catalog.
