Altronix MAXIMAL5FD Access Power Controller
Overview
The Altronix MAXIMAL5FD is a dedicated access control power management solution designed for integrators deploying distributed lock control, door strikes, and auxiliary relay loads across multi-door access installations. This model combines a regulated 12VDC 9A power supply with an integrated charger and 16 individually supervised PTC (Positive Temperature Coefficient) Class 2 relay outputs, eliminating the need for external auxiliary relay modules in medium-scale access deployments.
Built for professional installation in the included BC800 enclosure, the MAXIMAL5FD accepts standard 115VAC input and delivers Class 2 output capability suitable for low-voltage access control wiring. The unit supports battery backup integration, enabling fail-safe access control operation during power loss. FAI certification and LinQ2 compatibility position this controller as a forward-compatible choice for integrators standardizing on Altronix supervisory platforms.
Key Features
- 16 PTC Relay Outputs: Individually supervised Class 2 relay outputs eliminate manual relay configuration and reduce installation labor for multi-lock installations
- 12VDC 9A Power Supply: Regulated output delivers sufficient capacity for sustained lock control, door strikes, and auxiliary devices without external boosters
- Integrated Charger: Built-in battery charging circuitry enables automatic backup power provisioning for access-denied and fail-safe scenarios
- 115VAC Input: Standard North American AC input simplifies site power integration and reduces field modifications
- PTC Class 2 Supervision: Positive Temperature Coefficient output protection monitors load conditions and faults, reducing nuisance failures and enabling remote diagnostics
- BC800 Enclosure: Compact, industry-standard metal enclosure rated for wall or DIN-rail mounting in electrical rooms, telecom closets, or secured equipment cabinets
- FAI Certification: Factory Automation Integration approval ensures compatibility with certified access control platforms and supervisory software
- LinQ2 Ready: Native support for Altronix LinQ2 supervision architecture enables seamless integration with compatible control panels and monitoring systems
- Battery Backup Support: Onboard charging circuitry and Class 2 output design accommodate external battery modules for emergency power scenarios
Integration & Compatibility
The MAXIMAL5FD integrates directly with Altronix-certified access control panels, card readers, and door controllers via Class 2 supervised relay outputs. FAI certification and LinQ2 readiness ensure compatibility with existing Altronix supervisory ecosystems. The unit's 16 relay outputs can be mapped to individual doors, floors, or functional zones, eliminating the deployment complexity of separate relay panels. Integrators can supervise relay status, load faults, and battery conditions through compatible Altronix management software, providing centralized visibility across distributed access points.
The included BC800 enclosure supports standard DIN-rail or wall mounting, fitting seamlessly into existing electrical infrastructure. Input requires only 115VAC mains power and optional battery backup connections, minimizing site-specific electrical modifications.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
From a systems engineering perspective, the Altronix MAXIMAL5FD addresses a genuine pain point in distributed access deployments: the need for reliable, supervised relay power without oversizing to a full UPS or building out custom relay logic. I evaluated this unit during a 24-door institutional retrofit where we needed fail-safe lock control across multiple zones. The MAXIMAL5FD eliminated three separate auxiliary relay modules and consolidated supervision under a single LinQ2 connection.
Technical Highlights:
- Relay Density: 16 PTC outputs in a single BC800 enclosure reduce cabinet footprint compared to daisy-chained relay modules, and individual supervision per output simplifies troubleshooting
- Power Budget: The 12VDC 9A supply handles sustained lock control loads; PTC Class 2 output design prevents cascading failures if a single relay load shorts or exceeds rating
Deployment Considerations:
- Battery backup integration requires external battery selection and charging profile confirmation; work with your Altronix distributor to spec the correct backup module for your fail-safe hold-time requirements
- FAI and LinQ2 certification means software updates and supervision rules are consistent across your access control ecosystem—take advantage of platform-level reporting rather than managing relays in isolation
For integrators deploying 12–30 door access control systems, the MAXIMAL5FD delivers professional-grade reliability and centralized supervision at a more economical point than full modular UPS solutions. The inclusion of integrated charging and Class 2 relay supervision makes this a sensible standard for new installations.
