Brand: Mercury Security · SKU: MR52-S3 · MPN: MR52-S3 · Category: Components
The Mercury MR52-S3 is a high-performance dual-door sub-controller designed to expand access control systems with reliable I/O and multi-reader support. It provides interfaces for two card readers, eight monitored inputs, and six Form C relays (5A @ 30VDC) for door and auxiliary control. Built on the Authentic Mercury open platform, the Series 3 module features an improved processor and increased memory, alongside an embedded crypto memory chip that provides a secured layer of encryption to protect sensitive data. Its RS-485 communication architecture allows for seamless integration with Mercury LP and EP series intelligent controllers. The board supports multiple reader technologies including Wiegand, F/2F, and OSDP with Secure Channel, and fits the same footprint as the previous Series 2 modules for easy upgrades.
| Inputs | 8 General Purpose, 2 Dedicated (Tamper and Power Monitor) |
|---|---|
| Relays | 6 Form-C (5A @ 30VDC) |
| Encryption | AES 128/256 bit data encryption |
| Reader Ports | 2 |
| Communication | RS-485, 2-wire, 4,000 ft |
| Primary Power | 12-24 VDC +/- 10%, 550mA maximum |
| Reader Technology | OSDP, OSDP Secure Channel, Wiegand, Clock/Data, F/2F |
| Operating Temperature | 0 to 70 °C |
| Warranty | 2-Year Manufacturer Warranty |
| Weight | 0.70 lbs |
| Dimensions | 6.0" W x 8.0" L x 1.0" H |
The MR52-S3 is the latest generation door interface module for HID Mercury intelligent controllers, providing an open architecture solution for enterprise-grade access control. It allows for the expansion of two doors per module with full auxiliary monitoring and control capabilities.
Yes, this Mercury Security MR52-S3 Dual Reader Interface Module (MR52-S3) is 100% genuine Mercury Security hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Mercury Security MR52-S3 Dual Reader Interface Module includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the MR52-S3.