The DSC PC4020PCBC MAXSYS PC4020 is a versatile control panel board designed for security systems, supporting up to 16 wired keypads. It offers scalability with expansion capabilities up to 128 zones, allowing integration of hardwired, wireless modules, and addressable zones to suit various security needs. This board includes built-in supervision for telephone lines and sirens, enhancing system reliability. Ideal for comprehensive security setups, it promises efficient monitoring and protection. Upgrade your security infrastructure with this durable and expandable control panel board today.