Paxton10 Door Controllers are the building blocks of the Paxton10 system. Each one provides control of a single door and a port to allow support for up to three Paxton10 Wireless Connectors for additional functionality. A single Paxton10 system can include up to 1000 door controllers. The Paxton10 Door Controller – Plastic Enclosure provides a versatile solution for Paxton10 where centralized or low voltage power is already available.