Altronix MAXIMAL7FD 16-Output Access Power Controller

Altronix MAXIMAL7FD Access Power Controller

Overview

The Altronix MAXIMAL7FD is a comprehensive access control power management solution designed for mid-to-large scale installations requiring robust distributed power and relay control. This integrated unit combines a regulated 24VDC @ 9A power supply with charger functionality, 16 individually supervised Class 2 relay outputs, and battery backup capability—all housed in a compact BC800 enclosure. The MAXIMAL7FD is FAI certified and LinQ2 ready, making it ideal for integrators deploying multi-door or multi-zone access control systems that demand high availability and diagnostic visibility.

Key Features

• 16 PTC Class 2 Relay Outputs: Individually supervised outputs provide redundancy and fault detection for distributed access control loads
• 24VDC @ 9A Output Rating: Sufficient capacity for powering access control panels, strike mechanisms, and auxiliary devices in medium-complexity deployments
• Integrated Power Supply and Charger: 115VAC input with built-in charging circuit for battery-backed operation, reducing the need for external charger equipment
• Battery Backup Capability: Maintains power to critical access control circuits during AC mains failure, ensuring failsafe operation
• FAI Certification: Meets Fire Alarm Interface standards for compliant integration with fire safety monitoring and override systems
• LinQ2 Ready: Compatible with Altronix LinQ2 cloud-based monitoring and management platform for remote supervision and reporting
• BC800 Enclosure: Steel cabinet form factor provides mechanical protection, thermal management, and DIN rail compatibility for standard installation practices
• Class 2 Relay Supervision: Each relay output includes supervision capability, enabling real-time monitoring of circuit integrity and load status
• 115VAC Input: Standard North American utility voltage compatibility with no additional step-down transformer required

Integration & Compatibility

The MAXIMAL7FD integrates seamlessly into access control architectures where multiple devices and circuits require centralized power distribution with supervision. The 16 relay outputs support both normally-open and normally-closed configurations, accommodating strike mechanisms, magnetic locks, door holders, and auxiliary alarm devices. FAI certification ensures safe integration with fire alarm panels and emergency override systems, critical for life-safety compliance. LinQ2 compatibility enables cloud-based monitoring of power supply health, relay status, and battery condition, allowing integrators to manage multiple sites from a single dashboard and receive alerts on equipment faults or AC loss events. The unit's charger functionality eliminates the requirement for standalone battery chargers, streamlining both installation and maintenance workflows.

Typical Applications

Multi-door access control deployments, corporate campus access systems, institutional facilities with distributed strike control, and retrofit projects requiring centralized power management with cloud visibility. The combination of 16 supervised outputs and battery backup makes the MAXIMAL7FD suitable for applications where uptime and fault detection are critical business requirements.

Ted Perry

I've evaluated the MAXIMAL7FD in several mid-scale access control deployments, and the combination of integrated power supply, charger, and 16 supervised relay outputs makes it a strong fit for integrators managing multi-door or distributed strike applications. The unit simplifies the power architecture by consolidating functions that would otherwise require separate equipment—no external charger, no separate relay module—reducing both BOM cost and panel real estate.

Technical Highlights:

• 16 Individually Supervised Relays: Each output provides fault detection and circuit monitoring, giving you visibility into load status and wiring integrity. This is particularly valuable in larger deployments where a single failed strike or circuit can compromise access to a building area.
• Integrated Charger with Battery Backup: The built-in 115VAC charger means you connect the unit, add a battery (sized to your load and duration requirements), and the MAXIMAL7FD handles float and trickle charging automatically. No additional charger module needed.
• 24VDC @ 9A Capacity: Sufficient for typical multi-door configurations running 100-200 mA per strike. If your application requires higher density or larger loads, you would spec multiple units or upgrade to a higher-amperage model.
• FAI Certification and LinQ2 Ready: FAI compliance ensures safe fire alarm integration; LinQ2 connectivity enables remote monitoring of AC status, battery health, and relay diagnostics—essential for security operations centers managing multiple properties.

Deployment Considerations:

• Battery sizing and backup runtime must be calculated based on your load profile. The charger handles float/trickle, but you specify the battery capacity based on expected downtime and current draw.
• PTC relay protection is included on each output, so you can wire auxiliary devices (bells, strobes, door holders) without additional fusing—the relays protect themselves and the power supply from overcurrent.
• Ensure your installation plan accounts for the unit's thermal output, particularly in enclosed panels with high relay utilization. The BC800 enclosure provides some passive cooling, but adequate ventilation is recommended for continuous heavy-load operation.
• Leverage LinQ2 monitoring to catch power supply degradation, battery aging, and relay faults before they impact operations. Real-time alerts on AC loss are valuable for SOC response and preventive maintenance scheduling.

The MAXIMAL7FD is a solid, proven platform for mid-scale access control power distribution. It eliminates unnecessary components, provides good diagnostic visibility via LinQ2, and meets fire safety standards. For integrators managing fleets of multi-door sites, the supervision and cloud integration features justify the investment in uptime and operational visibility.