# MR52

<figure><img src="/files/ktI48tPPlvvbUUcpK82N" alt=""><figcaption></figcaption></figure>

The MR52 is a dual-card reader interface panel that offers on-board flexibility for connecting to various security devices. It is a cost-effective and high-performance device that is easy to install. It provides all the necessary input/output (I/O) capabilities for controlling two doors, including auxiliary point control and monitoring. Each unit can connect two card readers, eight general-purpose input monitor points, and six control relays to any Mercury EP series intelligent controller.

* 24VDC or 12VDC input power
* Supports 2 readers (TTL or RS485)
* Can have up to 31 downstream expansion boards to equal 64 total doors with controller

## Manufacturer Installation Manual

{% file src="/files/tLm28UoTKSN3zVjk456S" %}

## Manufacturer Datasheet

{% file src="/files/GEDUObXX9HMhmSrW8TGX" %}


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