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MR52-S3 | Mercury Security dual-door sub-controller, 2 readers, 8 inputs, 6 relays, RS-485 communication
- Regular price
- $545.00
- Sale price
- $545.00
- Regular price
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Product Description P/N: MR52-S3
Description
The Mercury MR52-S3 is a dual-door sub-controller designed to expand access control systems with reliable I/O and multi-reader support. This part number provides interfaces for two card readers, eight monitored inputs, and six Form C relays for door and auxiliary control. Its RS-485 communication architecture allows seamless integration with Mercury EP series intelligent controllers.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Mercury Security |
| Category | Sub-Controller |
| Part Number | MR52-S3 |
| Subcategory | Access Control Expansion Module |
| Type | Dual-door sub-controller |
| Primary Power | 12–24 VDC ±10%, 150 mA max |
| Readers Supported | 2 |
| Inputs | 8 standard monitored inputs |
| Outputs | 6 Form C relays, 5 A at 30 VDC |
| Communication | RS-485 required |
| Reader Technologies | Wiegand, F/2F, OSDP Secure Channel |
| Compatibility | Mercury EP series controllers |
| Security Features | AES-128/256 encrypted communication; onboard cryptographic memory |
| Installation | Same footprint as MR52 Series 2 |
| Auxiliary I/O | 4 auxiliary inputs and 4 auxiliary outputs (board-level) |
Information About MR52-S3
The MR52-S3 is part of Mercury Security’s Series 3 sub-controller lineup, engineered to extend door control capability within enterprise access systems. Designed as a direct replacement for the MR52 Series 2, it retains the same footprint and interface, enabling straightforward upgrades without reprogramming. The unit supports multiple reader technologies—including Wiegand, F/2F, and OSDP with Secure Channel—and provides additional auxiliary inputs and outputs for flexible device integration. Typical applications include two-door access control, secure facility management, and system expansion where encrypted communication and high I/O density are required.
Key Features:
- Two-Door Sub-Controller: Supports 2 readers and complete door I/O for controlled entry points.
- Eight Standard Inputs: Enables monitoring of door position switches, REX devices, and auxiliary points.
- Six Form C Relays: Provides 5A-rated relay outputs for locks, alarms, or automation control.
- RS-485 Connectivity: Ensures secure, encrypted communication with Mercury EP controllers.
- Multi-Technology Reader Support: Compatible with Wiegand, F/2F, and OSDP Secure Channel readers.
- Series 2 Footprint Match: Directly replaces the MR52 Series 2 without wiring or software changes.
- Integrated Cryptographic Module: Protects encryption keys and enhances system data security.
The MR52-S3 delivers the reliability and precision required for scalable, secure access control expansion.
Description
The Mercury MR52-S3 is a dual-door sub-controller designed to expand access control systems with reliable I/O and multi-reader support. This part number provides interfaces for two card readers, eight monitored inputs, and six Form C relays for door and auxiliary control. Its RS-485 communication architecture allows seamless integration with Mercury EP series intelligent controllers.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Mercury Security |
| Category | Sub-Controller |
| Part Number | MR52-S3 |
| Subcategory | Access Control Expansion Module |
| Type | Dual-door sub-controller |
| Primary Power | 12–24 VDC ±10%, 150 mA max |
| Readers Supported | 2 |
| Inputs | 8 standard monitored inputs |
| Outputs | 6 Form C relays, 5 A at 30 VDC |
| Communication | RS-485 required |
| Reader Technologies | Wiegand, F/2F, OSDP Secure Channel |
| Compatibility | Mercury EP series controllers |
| Security Features | AES-128/256 encrypted communication; onboard cryptographic memory |
| Installation | Same footprint as MR52 Series 2 |
| Auxiliary I/O | 4 auxiliary inputs and 4 auxiliary outputs (board-level) |
Information About MR52-S3
The MR52-S3 is part of Mercury Security’s Series 3 sub-controller lineup, engineered to extend door control capability within enterprise access systems. Designed as a direct replacement for the MR52 Series 2, it retains the same footprint and interface, enabling straightforward upgrades without reprogramming. The unit supports multiple reader technologies—including Wiegand, F/2F, and OSDP with Secure Channel—and provides additional auxiliary inputs and outputs for flexible device integration. Typical applications include two-door access control, secure facility management, and system expansion where encrypted communication and high I/O density are required.
Key Features:
- Two-Door Sub-Controller: Supports 2 readers and complete door I/O for controlled entry points.
- Eight Standard Inputs: Enables monitoring of door position switches, REX devices, and auxiliary points.
- Six Form C Relays: Provides 5A-rated relay outputs for locks, alarms, or automation control.
- RS-485 Connectivity: Ensures secure, encrypted communication with Mercury EP controllers.
- Multi-Technology Reader Support: Compatible with Wiegand, F/2F, and OSDP Secure Channel readers.
- Series 2 Footprint Match: Directly replaces the MR52 Series 2 without wiring or software changes.
- Integrated Cryptographic Module: Protects encryption keys and enhances system data security.
The MR52-S3 delivers the reliability and precision required for scalable, secure access control expansion.