Description
Avigilon Alta 4-Port Expansion Board for Access Control Panel
Model: OP-EX-4E
Overview
The Avigilon Alta 4-Port Expansion Board is a compact, plug-and-play expansion module designed to extend the capacity of an Alta Access Control system.
Connecting directly to the Alta Access Control Core (OP-ACC), this board supports up to four secure entries and four Avigilon Smart Readers, enabling reliable, distributed access decisions without additional enclosures or power supplies.
Key Features
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Expand up to 4 doors โ supports four readers and four controlled entries
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Local decision making โ works with the Access Control Core for secure entry validation
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2 auxiliary relays โ integrate door hardware, alarms, or custom triggers
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Plug-and-play design โ fast installation with minimal configuration
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Board-only format โ ideal for modular or cabinet-based deployments
How It Works
The OP-EX-4E connects directly to the Alta Access Control Core (OP-ACC), extending system capacity without adding complexity.
Access decisions are made securely in coordination with the core controller, ensuring consistent performance even in distributed or multi-entry environments.
Ideal For
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Commercial buildings expanding existing Alta access control systems
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Multi-door offices, education facilities, and managed sites
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Installers needing flexible, scalable access control architecture
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Environments using Avigilon Smart Readers
Technical Specifications
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Product Type: Access Control Expansion Board
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Reader Support: Up to 4 Avigilon Smart Readers
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Relays: 2 auxiliary relays
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Connectivity: Direct connection to Alta Access Control Core (OP-ACC)
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Power Supply: Not included
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Enclosure: Not included
Whatโs Included
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Avigilon Alta 4-Port Expansion Board (OP-EX-4E)
(No enclosure or power supply included)
Compatibility
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Designed for use with Avigilon Alta Access Control Core (OP-ACC)
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Compatible with Avigilon Smart Readers
Why Choose This Expansion Board
This module provides clean, scalable growth for Alta access systems โ extending door capacity while maintaining secure, centralized control logic. Itโs an efficient way to scale without replacing existing infrastructure.





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