Ajax 12V DC Alternative Power Supply Board for Ajax NVR

Ajax 12V PSU for NVR - Low-Voltage Power Board for Ajax Network Video Recorders

The Ajax 12V PSU for NVR is a compact electronic board that replaces the standard 110/230V AC power supply built into an Ajax network video recorder. Once fitted, it lets the NVR run directly from a 12V DC source such as a battery, solar setup, or other low-voltage supply, keeping recording active even when mains power is unavailable or unreliable. It is a practical solution for installers who need to guarantee continuous video capture on sites without stable electricity.

Key Features

• Low-voltage operation: Accepts an 8-16V DC input, allowing the NVR to run from batteries or other DC sources instead of the mains grid.
• Two selectable operating modes: Run without the jumper for the full 8-16V range, or install the supplied jumper to switch to a 12.1-16V mode that protects unregulated batteries from over-discharge.
• Stable regulated output: Delivers a consistent 12V DC (±3%) to the recorder's main board.
• Automatic low-voltage cut-off: In jumper mode, the NVR shuts down once voltage drops below 10.35V to prevent battery damage.
• Built-in tamper protection: An integrated tamper button triggers if the NVR enclosure lid is opened.
• Simple drop-in installation: Fits inside the existing NVR housing in place of the stock PSU, typically installable in about 10 minutes with just a PH1 screwdriver.
• Compact, lightweight board: Designed to sit neatly within the NVR enclosure without modification.
• Broad NVR compatibility: Works with Ajax's 8-channel and 16-channel network video recorders.

Reliable Recording for Sites Without Stable Power

This power board suits construction sites, remote compounds, warehouses, and any location where mains electricity is absent, unstable, or subject to outages. By connecting the NVR to a 12V battery or DC power source through this unit, installers can maintain uninterrupted surveillance coverage of tools, materials, and infrastructure, and can also add a battery as backup power for facilities that already have grid power.

What's in the Box

• 12V PSU for NVR circuit board
• Terminal adapter for connecting an external power source
• Jumper for the 12.1-16V operating mode
• Quick start guide

Frequently Asked Questions

Does this replace the NVR's original power supply?
Yes. The board is installed inside the NVR enclosure in place of the standard 110/230V AC power supply unit.

What input voltage range does it support?
It accepts 8-16V DC, with an optional jumper-enabled 12.1-16V mode for safer use with batteries lacking built-in protection circuitry.

Can any 12V battery be used?
Lead-acid, lithium, and nickel-metal hydride batteries are recommended for longer service life; zinc-air alkaline batteries are not advised.