1. Introduction
The MERCURY SECURITY MR50-S3 is a high-performance single-card reader interface panel designed for access control systems. It facilitates communication between a card reader and an intelligent controller, offering a compact and economical solution for managing a single door. This board supports various reader technologies and provides essential input/output capabilities for secure door control.
2. Product Overview
The MR50-S3 board integrates multiple components for robust operation. Understanding the layout and function of these components is crucial for proper installation and maintenance.
Figure 1: MERCURY SECURITY MR50-S3 Controller Board
This image displays the MERCURY SECURITY MR50-S3 controller board. Key components visible include multiple terminal blocks (TB1, TB2, TB3, TB4) for connections such as power (VIN, GND), reader data (CLK/D1, DAT/D0, TR+, TR-), inputs (NC, NO), and relays (K1, K2). The board features several integrated circuits (ICs), resistors, capacitors, and two relays (K1, K2). A prominent 'AUTHENTIC MERCURY' logo is centered on a large IC. The board is marked with '10224-0081-F REV-E MSP (C)2016' and 'TH-15 94V-0A 1006. E164576', indicating its model, revision, and manufacturing details. A yellow 8-pin header (S1) is also visible on the right side.
3. Setup
3.1. Installation Requirements
- Compatible intelligent controller (e.g., HID Mercury intelligent controllers).
- Appropriate power supply (refer to specifications for voltage and current).
- Single card reader (OSDP, Wiegand, Clock/Data, Magnetic Stripe, F2F, Supervised F2F, Keypad, or Biometric).
- Necessary wiring for power, communication, reader, inputs, and relays.
3.2. Wiring Instructions
Ensure all power is disconnected before performing any wiring. Connect the MR50-S3 board to the intelligent controller via RS-485. Connect the card reader to the designated reader port, ensuring correct data and power connections. Wire the door's lock mechanism to the appropriate relay output (K1 or K2) and connect door sensors or other inputs to the general purpose inputs. Refer to the detailed wiring diagrams provided with your complete access control system documentation for specific connections.
4. Operating Instructions
Once installed and configured with a compatible intelligent controller, the MR50-S3 operates by receiving data from the connected card reader. This data is then transmitted via RS-485 to the intelligent controller for authentication. Upon successful authentication, the controller sends a command back to the MR50-S3 to activate the designated relay, thereby unlocking the door.
- Reader Port: Supports one reader, or up to two OSDP readers.
- Card/Keypad Data: Compatible with OSDP, Clock/Data, Data-1/Data-0, RS-485, or F/2F formats.
- Door Control: Manages the access for a single door.
5. Maintenance
The MR50-S3 board is designed for reliable operation with minimal maintenance. Periodically inspect the board and its connections for any signs of damage, loose wiring, or dust accumulation. Ensure the operating environment remains within specified temperature and humidity ranges to prevent component degradation. Cleaning should be performed with a soft, dry brush or compressed air; avoid using liquids or abrasive materials.
6. Troubleshooting
If the MR50-S3 board is not functioning as expected, consider the following basic troubleshooting steps:
- No Power: Verify the power supply connections and ensure the correct voltage is being supplied to the board. Check for any blown fuses if applicable.
- Reader Not Responding: Confirm the reader is correctly wired to the MR50-S3 and that the reader itself is powered. Check for proper data format configuration.
- Communication Issues: Ensure the RS-485 connection to the intelligent controller is secure and correctly terminated. Verify communication settings in the access control software.
- Door Not Unlocking: Check the wiring to the door lock and the relay output. Confirm that the intelligent controller is sending the unlock command.
For persistent issues, consult the complete system documentation or contact technical support.
7. Specifications
- Model: MR50-S3
- Reader Ports: 1 (supports up to 2 OSDP readers)
- Card/Keypad Data: OSDP, Clock/Data, Data-1/Data-0, RS-485, F/2F
- Door Control: 1 Door
- Inputs: 3 (2 General Purpose, 1 Dedicated Tamper)
- Relays: 2 (1 x NO 5A @ 30VDC or NC 3A @ 30VDC, 1 x 2A @ 30VDC)
- Connectivity: RS-485
- Item Weight: 7.2 ounces
- Special Feature: Compact design for versatility
- Compatible Devices: Biometric Device, Camera, Personal Computer
8. Warranty Information
For detailed warranty terms and conditions, please refer to the official MERCURY SECURITY website or the documentation provided with your purchase. Warranty coverage typically includes defects in materials and workmanship under normal use for a specified period.
9. Support
If you require technical assistance, have questions regarding installation, or need further support, please contact MERCURY SECURITY customer service or your authorized distributor. Ensure you have your product model number (MR50-S3) and any relevant system details available when seeking support.
