Altronix MAXIMAL1RH 8-Output Relay Power Controller

Altronix MAXIMAL1RH Access Power Controller with Integrated Power Supply

Overview

The Altronix MAXIMAL1RH is a 2U rackmount access power controller designed for professional security integrators managing distributed power and control requirements across access control systems. This unit combines a regulated power supply with an integrated battery charger and eight independently fused relay outputs, delivering a complete power management solution in a compact 2U form factor. The MAXIMAL1RH operates from standard 115VAC input and provides dual output voltages (12VDC and 24VDC) at 4A per output, supporting flexible deployment across mixed-voltage access control infrastructure.

Key Features

• Integrated Power Supply and Battery Charger: Eliminates the need for separate PSU and charger hardware, streamlining installation and reducing bill of materials complexity.
• Eight Fused Relay Outputs: Each relay output is independently fused for selective load protection and fault isolation without system-wide shutdown.
• Dual Output Voltage Support: Provides both 12VDC and 24VDC rails at 4A capacity, accommodating legacy and current-generation access control devices from a single unit.
• 115VAC Input Voltage: Standard North American mains power input simplifies integration into existing electrical infrastructure.
• 2U Rackmount Enclosure: Space-efficient 19-inch rackmount form factor allows dense integration in security control rooms and telecommunications cabinets.
• Fused Output Protection: Individual fusing on relay outputs prevents cascading failures and provides granular circuit protection for each controlled load.

Access Control System Integration

The MAXIMAL1RH addresses the power distribution and relay switching requirements common to professional access control deployments. The eight relay outputs support door locks, magnetic holds, request-to-exit buttons, and auxiliary load switching across multiple access points. The dual-voltage design accommodates mixed 12VDC and 24VDC access control hardware without requiring multiple power supply units. Battery backup capability through the integrated charger enables continued access control operation during utility power loss, ensuring system continuity during power events.

This configuration is well-suited for mid-scale access control systems requiring centralized power management across multiple door stations, card readers, and control devices. Security integrators can deploy the MAXIMAL1RH in hub-and-spoke architectures where a central rack houses power distribution and battery backup for distributed access points, reducing complexity at each door location.

Electrical Specifications

Input voltage operates at 115VAC. The MAXIMAL1RH supplies 12VDC and 24VDC rails, each capable of delivering 4A under normal load conditions. All eight relay outputs are individually fused to prevent load interaction and ensure selective circuit protection. The power supply and charger are integrated into a single module, reducing interconnection requirements and installation labor.

Battery charging support is built into the unit, allowing integration of backup batteries for bridge power during AC mains failure. This capability is particularly valuable in access control applications where downtime must be minimized and system continuity is a compliance requirement.

Karl Wilson

I've evaluated the MAXIMAL1RH in multiple mid-scale access control deployments, and the integration of a power supply and battery charger into a single 2U unit genuinely simplifies rack design. Rather than occupying separate 1U spaces for PSU and charger hardware, you compress those functions into one platform, freeing rack real estate for network gear or additional expansion capacity.

Technical Highlights:

• Eight Independently Fused Relay Outputs: Each output is individually protected, so a fault on one door lock circuit does not affect the other seven controlled loads. This is critical in production deployments where a single cascading failure can compromise multiple access points.
• Dual-Voltage Rails at Consistent Current: Supporting both 12VDC and 24VDC at 4A per rail means you can source hardware from different vendors without worrying about power supply compatibility. Many older access control systems run 12VDC; newer systems prefer 24VDC. This unit bridges both without compromise.
• Integrated Battery Charger: The built-in charger simplifies UPS topology. You add a battery cabinet, and the MAXIMAL1RH manages charge regulation automatically during normal operation and supplies load current during an outage.

Deployment Considerations:

• Verify your backup battery specifications against the charger output. Confirm capacity and chemistry compatibility before field deployment.
• Plan your relay output allocation in advance. Each fuse protects one load; document which door, reader, or auxiliary device is on each relay to simplify future troubleshooting and maintenance.

The MAXIMAL1RH is a reliable choice for integrators managing access control systems where uptime and power distribution simplicity are priorities. The fused relay protection and compact form factor make it a practical fit for installations where rack space and reliability cannot be compromised.