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Summary of Contents for HID Mercury MR52-S3B
- Page 1 HID® Mercury™ MR52-S3B Reader Interface Installation and Specifications HID® Mercury™ MR52-S3B Reader Interface Installation and Specifications PLT-06451, A.1 September 2023...
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Page 2: What's New
Trademarks HID GLOBAL, HID, the HID Brick logo, 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...
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Page 4: Component Location
Powering HID® Mercury™ MR52-S3B 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...
- 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-S3B 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-S3B 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...
- Page 9 Powering HID® Mercury™ MR52-S3B 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-S3B 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-S3B 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-S3B Reader Interface Trusted Identities Installation and Specifications Selection Address 31 115,200 BPS 9,600 BPS 19,200 BPS 38,400 BPS Encrypted communication not required Encrypted communication required 1. Firmware revisions prior to 1.38.1, this setting is 2,400 BPS. 2. Firmware revisions prior to 1.38.1, SW8 is not defined. Set to the OFF position.
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Page 13: Status Leds
Powering HID® Mercury™ MR52-S3B 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...
- Page 15 Powering HID® Mercury™ MR52-S3B 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: Performance Levels
Powering HID® Mercury™ MR52-S3B Reader Interface Trusted Identities Installation and Specifications 3.1 Performance Levels Evaluated to UL 294 7th edition and ULC 60839-11-1: Grade 2 and indoor dry. Optional requirements of ULC 60839-11-1 items have not been evaluated. Feature Level Grade 2... -
Page 17: Revision History
Powering HID® Mercury™ MR52-S3B Reader Interface Trusted Identities Installation and Specifications Revision history Date Description Revision September 2023 Updated 3.4 Regulatory April 2022 Initial release. PLT-06451, A.1 September 2023... - Page 18 For technical support, please visit: https://support.hidglobal.com © 2023 HID Global Corporation/ASSA ABLOY AB. All rights reserved. PLT-06451, Rev. A.1 Part of ASSA ABLOY Dummy text.
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