Summary of Contents for HID Mercury MR52-S3
- Page 1 HID Mercury™ MR52-S3 Reader Interface Installation and Specifications PLT-05248, A.2 June 2021 HID Mercury™ MR52-S3 Reader Interface Installation and Specifications Powering Trusted Identities...
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Page 2: What's New
HID GLOBAL, HID, the HID Brick logo, the Chain Design, and HID Mercury are trademarks or registered trademarks of HID Global, ASSA ABLOY AB, or its affiliate(s) in the US and other countries and may not be used without permission. All other trademarks, service marks, and product or service names are trademarks or registered trademarks of their respective owners. - Page 3 Section 01 Overview Powering Trusted Identities...
- Page 4 Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications 1.1 MR52 reader interface The MR52 reader interface boards provide a solution to the OEM system integrator for interfacing to TTL (D1/D0, Clock/Data), F/2F, 2-wire RS-485 device and door hardware. The MR52 provides a tristate LED control, and buzzer control.
- Page 5 Section 02 MR52 wiring and setup Powering Trusted Identities...
- Page 6 The VOUT terminal on TB7 is the same as VIN. 2.2 Communication wiring (SIO communication port) The MR52 communicates with a HID Mercury Security intelligent controller (EP2500 for example) via a 2-wire RS-485 interface. The MR52 allows for multi-drop communication on a bus of up to 4,000 feet (1,200 m).
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Page 7: Reader Wiring
Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications 2.3 Reader wiring Each reader port supports a reader with TTL (D1/D0, Clock/Data), F/2F, or 2-wire RS-485 signaling. Power to the reader is selectable: 12 V DC (VIN must be greater than 20 V DC), or power is passed-through (PT) from the input voltage of the MR52 (TB7-VIN), 300 mA maximum per reader port. - Page 8 Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications 2.3.1 Reader wiring diagrams Typical reader 1 Typical reader 1 (OSDP installation) (Wiegand or Clock/Data installation) Typical reader 2 Typical reader 2 (OSDP installation) (Wiegand or Clock/Data installation) Typical Unsupervised F/2F Reader Typical Supervised F/2F Reader ...
- Page 9 Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications 2.4 Alarm contract wiring There are eight inputs that are typically used to monitor door position, request to exit or alarm contacts. Input circuits can be configured as: Unsupervised alarm (2 states); reporting as open or closed contact.
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Page 10: Control Output Wiring
Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications 2.6 Control output wiring Six Form-C contact relays are provided for controlling door strikes or other devices. Load switching can cause abnormal contact wear and premature contact failure. Switching of inductive loads (strike) also causes EMI (electromagnetic interference) which may interfere with normal operation of other equipment. - Page 11 Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications 2.8 Address, baud rate and encryption configuration switch Switches 1 to 5 select the device address. Switch 6 and 7 select the communication baud rate. Switch 8 enables encrypted communication. All other configuration settings are set via host software.
- Page 12 Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications Selection 115,200 BPS 9,600 BPS 19,200 BPS ...
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Page 13: Status Leds
Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications 2.9 Status LEDs 2.9.1 Power-up All LEDs are OFF. 2.9.2 Initialization Once power is applied, initialization of the module begins. When initialization is completed, LEDs A through R2 are briefly sequenced ON then OFF. - Page 14 Section 03 Specifications Powering Trusted Identities...
- Page 15 Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications Revision D assembly: The Interface is for use in low voltage, class 2 circuits only. The installation of this device must comply with all local fire and electrical codes. Primary power 12 to 24 V DC ±...
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Page 16: Warranty
Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications UL294, 6 edition Performance Levels Feature Level Standby Power Endurance Line Security Destructive Attack These specifications are subject to change without notice. 3.1 Warranty Mercury Security warrants the product is free from defects in material and workmanship under normal use and service with proper maintenance for one year from the date of factory shipment. -
Page 17: Revision History
Powering HID Mercury™ MR52-S3 Reader Interface Trusted Identities Installation and Specifications Revision history Date Description Revision June 2021 Minor updates. April 2021 Added reader power select table in 2.3 Reader wiring October 2020 Initial release. PLT-05248, A.2 June 2021... - Page 18 Dummy text. Powering Trusted Identities PLT-05248, A.2 Americas & Corporate Asia Pacific Europe, Middle East & Africa Brazil 611 Center Ridge Drive 19/F 625 King's Road 3 Cae Gwyrdd Condomínio Business Center Austin, TX 78758 North Point Green Meadow Springs Av.