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4-Port Expansion Board for Access Control Panel

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4‑Port Expansion Board is an access control board (no enclosure, no power supply) that connects to the Access Control Core (OP-ACC) and supports up to four entries and four Avigilon Smart Readers. The 4‑Port Board works with the Access Control Core to securely make all entry decisions.

  • Up to 4 readers
  • 2 aux relays
  • Plug-and-play

Access control for the modern workplace

Alta Access combines sleek hardware with an app, enabling employees to enter the building using their smartphone. Unlike legacy systems, Alta Access software is cloud-based, easily scales with your business and seamlessly integrates with platforms like G Suite and Azure AD.

Touchless access control

Fast and reliable with Triple Unlock

Capacity tracking

Simplified installation

Expandability with seamless installation

The Expansion Board includes primary ports for Relays, Avigilon Smart Readers, Request to Exit (REX) Sensors and Contact Sensors. For additional flexibility, two auxiliary relays are provided for additional outputs or control of low-power devices and four auxiliary inputs are provided for Wiegand devices or additional sensors.

  • Reliability

    Uses industry standard RS-485 signaling to communicate with Avigilon readers over CAT 5/6 wiring.

  • Smart monitoring

    EOL monitoring with single or double termination on all REX, Contact and Auxiliary inputs supported with user-installed 1k resistors.

  • Easy to install

    Plug-and-play design allows for easy expansion and customization.

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Technical documentation and software
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