MD-IO84B Access Controller Expansion Board with 8 Inputs and 4 Outputs
The MD IO84B access controller expansion board is designed to extend system functionality with eight supervised inputs and four fully programmable relay outputs. Engineered for seamless integration with compatible networked access control panels, this module supports rapid installation through a dedicated expansion port and automatic device recognition. Advanced communication capabilities enable firmware updates, real time event monitoring, and reliable offline operation through the host controller. LED status indicators provide clear feedback for power and relay activity, making configuration and maintenance simple. The board offers a cost effective solution for expanding access control, automation, monitoring, and security management applications in commercial and industrial environments.
- Provides eight additional supervised inputs
- Includes four programmable 5A Form C relay outputs
- Supports real time event logging and monitoring
- Fast installation with automatic panel recognition
- Compatible with supported networked access controllers
Expands compatible Rosslare access control panels with eight additional supervised inputs for enhanced monitoring and system flexibility.
Adds four fully programmable 5A Form C relay outputs with NO, NC, and COM contacts for advanced device control and automation functions.
Designed as a plug-in expansion module for seamless integration with Rosslare AC-225x-B and AC-425x-B networked access control panels.
Features end-of-line (EOL) resistor protection on supervised inputs to improve system reliability and tamper detection capabilities.
Installs in less than one minute using the controller’s dedicated expansion port, minimizing setup time and labor costs.
Automatically recognized by the host control panel, eliminating complex configuration during installation.
Fully configurable through Rosslare AxTraxNG Server software, allowing customized input and output programming for access control and automation applications.
Supports real-time event logging and advanced communication with the controller for improved system monitoring and management.
Enables firmware updates directly through the controller connection, simplifying maintenance and future system enhancements.
Maintains full offline operation through the host panel, ensuring continuous functionality even during network interruptions.
Includes LED status indicators for 12V power presence and relay activation, providing quick visual system diagnostics.
Operates on a 12VDC power supply with low standby current consumption, making it an energy-efficient expansion solution.
Compact form factor allows easy installation inside compatible access control enclosures without requiring significant additional space.
Ideal for expanding access control, security monitoring, and building automation systems in commercial and institutional environments.
| MODEL NAME | MD-IO84B Access Controller 8 Input and 4 Output Expansion Board |
| MANUFACTURER | Rosslare |
| PRODUCT TYPE | Access Control Expansion Module |
| SKU | RSL-MD-IO84B |
| APPLICATION | Access Control and Automation Systems |
| COMPATIBILITY | Rosslare AC-225x-B Access Control Panels |
| COMPATIBILITY | Rosslare AC-425x-B Access Control Panels |
| MODULE TYPE | Plug-in Expansion Board |
| INSTALLATION METHOD | Direct Plug-In |
| INSTALLATION TIME | Under 1 Minute |
| PANEL RECOGNITION | Automatic Recognition by Host Panel |
| INPUT VOLTAGE | 12VDC |
| OPERATING CURRENT | Standby 30mA |
| MAXIMUM CURRENT | 135mA |
| NUMBER OF INPUTS | 8 |
| INPUT TYPE | Supervised Inputs |
| INPUT VOLTAGE | 5VDC |
| NUMBER OF OUTPUTS | 4 |
| OUTPUT TYPE | Fully Programmable Relay Outputs |
| RELAY TYPE | Form C Relays |
| RELAY CURRENT RATING | 5A |
| RELAY CONTACTS | NO, NC and COM |
| SUPERVISED OUTPUTS | 8 |
| OUTPUT PROTECTION | EOL (End-of-Line) Resistor Protection |
| LED INDICATORS | Power Status and Relay Activation |
| POWER STATUS LED | 12V Power Indication |
| RELAY STATUS LED | Relay Activation Indication |
| SERVER SOFTWARE | AxTraxNG Server |
| SOFTWARE VERSION REQUIRED | Version 27.5.7.x and Above |
| CONFIGURATION SUPPORT | Input and Output Configurability |
| AUTOMATION SUPPORT | Yes |
| ACCESS CONTROL SUPPORT | Yes |
| FIRMWARE UPDATE SUPPORT | Yes |
| REAL-TIME EVENT LOGGING | Supported |
| OFFLINE OPERATION | Full Offline Operation Supported |
| HOST PANEL COMMUNICATION | Advanced Communication Protocol |
| NETWORKED PANEL SUPPORT | Yes |
| DIMENSION LENGTH | 100 mm (3.93 in.) |
| DIMENSION WIDTH | 75.9 mm (2.98 in.) |
| DIMENSION DEPTH | 32.5 mm (1.28 in.) |
| FORM FACTOR | Compact Expansion Board |
| BOARD MOUNTING | Internal Controller Installation |
| EXPANSION FUNCTION | Adds Additional Inputs and Outputs |
| INPUT MONITORING | Supervised Monitoring |
| OUTPUT CONTROL | Programmable Relay Switching |
| SYSTEM INTEGRATION | Seamless Controller Integration |
| RECOGNITION PROCESS | Automatic Upon Power-Up |
| EXPANSION PORT | Dedicated Expansion Port |
| INSTALLATION COMPLEXITY | Simple and Cost Effective |
| POWER REQUIREMENT | 12VDC System Power |
| EVENT REPORTING | Real-Time Event Transmission |
| PROGRAMMING METHOD | AxTraxNG Software Configuration |
| CONTROLLER EXPANSION | I/O Expansion Capability |
| INPUT EXPANSION CAPACITY | 8 Additional Inputs |
| OUTPUT EXPANSION CAPACITY | 4 Additional Outputs |
| RELAY CONFIGURATION | Form C NO/NC Switching |
| SYSTEM FEEDBACK | LED Status Indicators |
| SECURITY APPLICATION | Commercial Access Control Systems |
| COMMERCIAL USE | Yes |
| INDUSTRIAL USE | Yes |
| BOARD CONSTRUCTION | Electronic PCB Module |
| INPUT SUPERVISION | EOL Monitored Inputs |
| HOST DEPENDENCY | Operates Through Compatible Rosslare Panels |
| SOFTWARE MANAGEMENT | Centralized Through AxTraxNG |
| EXPANSION CATEGORY | I/O Expansion Board |
| DEVICE PURPOSE | Increase Controller Input/Output Capacity |
Rosslare MD-IO84B Access Controller Expansion Board is a high-performance I/O expansion module designed to enhance the capabilities of Rosslare access control systems. Compatible with AC-225x-B and AC-425x-B networked access control panels, this expansion board adds 8 supervised inputs and 4 programmable relay outputs, enabling greater flexibility for advanced access control and automation applications. The plug-in design allows installation in under one minute, with automatic recognition by the host controller for fast deployment and seamless integration.
Expand Access Control Functionality with Ease
The MD-IO84B provides reliable expansion for growing access control systems. Equipped with 8 supervised inputs with End-of-Line (EOL) resistor protection and 4 Form C relay outputs rated at 5A, it supports a wide range of security devices, sensors, alarms, and automation functions. Once connected, the module is automatically detected by the controller and can be fully configured through Rosslare AxTraxNG™ Server software.
- 8 supervised inputs with EOL resistor protection
- 4 programmable Form C relay outputs
- 5A relay contacts with NO, NC, and COM terminals
- Automatic panel recognition and configuration
- Supports access control and automation applications
Reliable Performance and Seamless Integration
Designed for professional access control installations, the MD-IO84B features LED indicators for power and relay status, providing clear visual feedback during operation. Advanced communication with the host panel enables firmware updates, real-time event logging, and full offline functionality, ensuring dependable system performance even when network connectivity is unavailable.
- LED indicators for power and relay activation status
- Real-time event logging support
- Firmware update capability through the controller
- Full offline operation supported by the host panel
- Quick and cost-effective installation
The Rosslare MD-IO84B is an ideal solution for security integrators, installers, and facility managers seeking to expand the functionality of Rosslare access control systems without replacing existing infrastructure. Its flexible input/output configuration and simple deployment make it a valuable addition to commercial, industrial, and institutional security applications.
Technical Specifications
- Model: MD-IO84B
- Compatibility: Rosslare AC-225x-B and AC-425x-B Access Control Panels
- Input Voltage: 12VDC
- Input Current: 30mA standby / 135mA maximum
- Number of Inputs: 8 supervised inputs
- Input Voltage Level: 5VDC
- Number of Outputs: 4 relay outputs
- Relay Type: 5A Form C (NO, NC, COM)
- Dimensions: 100 mm x 75.9 mm x 32.5 mm (3.93 in x 2.98 in x 1.28 in)
- Software Support: AxTraxNG™ Server v27.5.7.x and above
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