Buffer Power Supply No name AD-155A, model AD-155A

Buffer power supply No name AD-155A is a standby/backup power unit designed to provide temporary power to connected equipment during mains interruptions. The unit supplies a stabilized low-voltage output for short-term hold-up, helping maintain operation of small electronic systems, CCTV cameras, routers and access control devices until primary power is restored or a longer-term backup takes over.

Advantages

The AD-155A offers compact standby power with fast switchover to battery-supplied output, reducing the risk of unexpected shutdowns. Its design focuses on compatibility with a variety of low-voltage devices, providing basic voltage stabilization and short-duration autonomy. The unit is easy to integrate into existing installations where space is limited and a simple backup solution is required.

Suitable for

• CCTV camera systems and DVR/NVR setups
• Routers, modems and small network equipment
• Access control panels and door entry systems
• Small embedded electronics and monitoring sensors

Key specifications

• Function: standby/backup power supply for temporary hold-up
• Output type: stabilized low-voltage DC appropriate for small electronic loads
• Intended autonomy: short-term power during mains failure
• Form factor: compact unit suitable for integration into limited-space installations
• Typical applications: surveillance, networking equipment, access control and small electronics

How to use

Install the buffer power supply in a dry, ventilated location close to the devices it will support. Connect the unit to the mains supply according to the installation instructions and wire the DC output to the load following polarity and voltage compatibility checks. Ensure the internal or external battery used with the unit is correctly connected and charged before relying on the device for backup. Verify output voltage and connections with a suitable meter after installation and before leaving the system in service.

Usage recommendations

Use the AD-155A for short-term backup only; for longer autonomy or critical systems, consider a larger-capacity backup solution and regular battery maintenance. Periodically test the unit under controlled power-fail conditions and replace batteries according to their manufacturer recommendations to ensure reliable performance.