The Mercury MR16OUT-S3 16-Output Multi-Device Interface Panel (Series 3) — RS2 Technologies Compatible — adds 16 Form-C relay outputs to any RS2 Access It! or Mercury-based access control system. Engineered for integrators who need additional output control for door strikes, elevator floor enablement, alarm shunts, HVAC interlocks, or any auxiliary load switching, the MR16OUT-S3 communicates over a single 2-wire RS-485 multi-drop bus up to 4,000 ft (1,200 m) and supports speeds from 9,600 to 115,200 bps. Two onboard digital inputs monitor tamper and power-fault status. An embedded cryptographic memory chip stores communication encryption keys at rest, protecting the panel against credential extraction. Powered by 12–24 VDC at 1,100 mA max. Plenum-rated for indoor mounting. The output-panel companion to the Mercury MR16IN-S3 input panel.
Key features: 16 Form-C relay outputs | 2 digital inputs (tamper + power fault) | RS-485 (2-wire, multi-drop, up to 4,000 ft) | 9.6 / 19.2 / 38.4 / 115.2 kbps | 12–24 VDC, 1100 mA max | Embedded encryption chip | Mercury Series 3 platform | RS2 Access It! and OEM controller compatible | Plenum rated | Weight 14 oz (400 g) | MPN: MR16OUT-S3
16 Form-C Relay Outputs — Add 16 independently controlled relay points to any RS2 Access It! or Mercury-based system for door strikes, elevators, alarm shunts, HVAC interlocks, and auxiliary load switching.
Mercury Series 3 Platform — Latest-generation Mercury hardware with enhanced processing, expanded memory, and forward compatibility across the Mercury ecosystem
RS2 Technologies Compatible — Drops directly into RS2 Access It! Universal, Enterprise, and Lite deployments — no custom firmware, no integration work.
2-Wire RS-485 Multi-Drop Communication — One bus connects up to the panel limit at distances up to 4,000 ft (1,200 m), minimizing cable runs across large installations.
Selectable Speeds: 9.6 / 19.2 / 38.4 / 115.2 kbps — Match the bus speed to your existing infrastructure or maximize throughput on greenfield deployments.
Embedded Cryptographic Memory — Onboard secure chip stores communication encryption keys at rest, protecting the panel against credential extraction and tampering.
Dual Status-Monitoring Inputs — Two digital inputs track tamper events and power-fault conditions, surfacing hardware issues before they affect operations.
Wide-Range DC Power — 12 to 24 VDC at 1,100 mA max — works with the most common access control power supplies and UPS-backed systems.
Pairs With Mercury MR16IN-S3 — The output companion to the MR16IN-S3 input panel — standardize your I/O architecture by deploying both together.
Manufacturer Part Number — MR16OUT-S3
✓ Free standard shipping ✓ 1-year hardware guarantee ✓ Ships same day (by 4:00 PM CT) ✓ 30-day returns