PR621 access controllers are designed as the most popular and low cost access control solutions.
They can be used either in standalone or integrated access systems for up to 1000 users. PR621 units are equipped with RS485 interface which can be use for both programming and online communication in networked system.
Access control system based on PR621 controllers can be managed locally through COM/USB serial port or remotely by computer network WAN/LAN (UT-4 interface required).
pdf PR611/PR621/PR311SE Installation Guide (572 KB)
pdf PRxx1 Series Controllers Functional Description (1.67 MB)
pdf RACS 4 Structure Quick Start Guide (1.45 MB)
pdf PR621 Declaration of Conformity EC (129 KB)
archive PR621 Firmware v1.18.11.1372 (30 KB)