product detail

AC-225 Professional Scalable IP Networked Access Controller

Model: AC-225

The state-of-the-art single/dual door AC-225 networked access controller is the backbone of medium scale security systems handling up to 30,000 users and 4092 doors. Driven by Rosslare's powerful, flexible, and easy to use software, the system provides an ideal modular and expandable solution for commercial and institutional needs.  It provides seamless integration with Rosslare's range of RFID PROXIMITY, PIN, PIN & PROX, SMARTCARD, and Biometrics readers with Rosslare's selection of RFID credentials.


AC-225 is suitable for applications with up to 30,000 users across a modular 4092 doors, allowing maximum flexibility for securing a growing enterprise. Each AC-225 access control unit (ACU) supports two readers (In/Out) of various formats including standard Wiegand 26-Bit. Installations can also have one reader per door. The AC-225 is ready for installation with a mountable and lockable metal enclosure integrated with a transformer, power supply/charger, sounder, and control board.


  • Up to 30,000 users with access rights for every panel, across optional 4092 modular doors in a system
  • 20,000, FIFO, history event log, when offline
  • Full intelligent logic interconnection of inputs, outputs, readers, and more
  • Panel supports both 1-door (In/Out) and 2-door (In/Out, In/In and Out/Out) configurations
  • Real-time clock keeps time for up to 2 weeks without power. No batteries to replace.
  • Cable cut tamper detection function for readers, and cover tamper detection for the enclosure
  • Pre-installed enclosure components: Transformer, dual power supply/charger unit for panel and lock devices; Sounder unit; Space for a 7 AH SLA backup battery; Tamper switch 


  • Based on SQL Express 2005 database
  • Each ACU subnet, consisting of up to 32 ACUs, can be connected to a PC running the AxTraxNG™ server PC software
  • Enables management of user data, photo with custom fields, access rights, alarms, strike times, and door modes, from a central location
  • Produces reports from acquired data, such as entry and exit times, and by alarm type with filters for user(s), location, and time
  • Available in a large selection of languages
Electrical Specifications
ACU Power Supply Voltage 12 VDC, regulated from built-in PS-33 regulated power supply / charger module
ACU Power Supply Max Current Panel output: 2 A input current limitation (PS-33) Lock output: 3 A
Relays 4 fully programmable 5 A, N.O. and N.C. relay outputs 4 expandable outputs with optional MD-IO84 or MD-D02
Battery Charger 12 V sealed lead acid (SLA) up to 7 Ah (PS-33)
Maximum Current for Readers 325 mA at 12 VDC
Operational Specifications
Capacity 30,000 users
History Event Log Size 20,000 events
Inputs 4 supervised, dual-resistor, 2 state end-of-line inputs, hiimpedance, active low 5 VDC 8 supervised expandable inputs with optional MD-IO84 or 4 supervised expandable inputs with optional MD-D02
Readers Two Wiegand 26/32/34/37/40-Bit / C&D reader ports
Connectivity RS-485/232, dial-up (using MD-N33)
Networking 32 units/subnet, 1023 subnets (4092 doors max. with MD-D02) using AxTraxNG™ software
Audio/Visual Built-in sounder (Alarm, Chime, Bell), 11 on-board and 3 P.S. LEDs
Time Zones and Groups 128 multiple segment time zones, 64 holidays, 30,000 access groups
Special Features Interlock, first person delay, auto relock, scheduled outputs operation, 4 programmable site codes, Extended unlocked time, fully interconnectedness
Physical Specifications
ACU Board Dimensions 168 x 121 mm (6.61 x 4.76 in.)
Enclosure Metal, locked 326 x 263 x 97 mm (12.8 x 10.4 x 3.82 in.)
Weight 3.95 kg (8.7 lbs)
Environmental Specifications
Operating Environment Indoor installation only
Operating Temperature 0°C to 49°C (32°F to 120°F)
Operating Humidity 0 to 85% (non-condensing)
RFI Protection > 20 V/m up to 1000 MHz
System Components AC-225 is compatible with a range of Rosslare accessories, including a diverse selection of readers and accessories