The AC-425IP-B Intelligent 4-Reader Expandable Networked Access Controller is powered by Rosslare AxTraxNG™ Server for Microsoft Windows to deliver fullfeatured access control and automation capability via 10/100 Ethernet port. The AC-425IP-B (TCP/IP) and AC-425-B (RS-485) control panels have one expansion slot for mounting one MD unit. The expansion modules – MD-D04B (4 readers + 4 outputs, 4 inputs) and MD-DIO84B (8 EOL supervised inputs and 4 outputs) – can be mounted in under one minute. Rosslare offers a variety of ordering options, including DIN-panel only and set up on an ME-1015 advanced power supply lockable enclosure. The system provides an ideal modular and expandable solution for commercial and institutional needs.