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Mercury MR16IN-S3 access control unit, compact metal enclosure, front panel with multiple terminal blocks and status LEDs

MERCURY

MERCURY MR16IN-S3 16-Input Access Control System

SKU CH-D867-8Y4JJ MPN MR16IN-S3

Controls 16 programmable inputs with AES 128/256 bit encryption via RS-485

  • 16 programmable inputs scale access monitoring
  • AES 128/256 bit encryption protects sensitive data
  • RS-485 host link simplifies system integration
  • End-of-line supervision ensures reliable input status
  • Crypto memory chip adds hardware-secured data layer

16-Input Access Controller

The Mercury MR16IN-S3 is a 16-input access control system designed for security integrators managing multi-device installations. It provides programmable monitoring for up to 16 uniquely supervised devices within a compact form factor. The unit adds functionality and flexibility to existing access control infrastructure using HID Mercury OEM partner software solutions.

AES Encryption and RS-485 Connectivity

An embedded crypto memory chip delivers AES 128/256 bit data encryption to protect sensitive credential data during transmission. The system communicates via RS-485 host connectivity for reliable wired integration. Configurable input parameters and end-of-line resistance supervision ensure stable, tamper-resistant operation across all monitored channels.

16 Programmable Inputs and 2 Relay Outputs

The controller offers 16 programmable inputs that initiate commands by operator action, time schedules, or event triggers. Two programmable relay outputs provide direct control for locks or auxiliary devices. This input and output count determines whether the unit matches the specific point-monitoring and control requirements of the target installation.

Highlights

  • 16 programmable inputs scale access monitoring
  • AES 128/256 bit encryption protects sensitive data
  • RS-485 host link simplifies system integration
  • End-of-line supervision ensures reliable input status
  • Crypto memory chip adds hardware-secured data layer

Specifications

No published specifications for this item yet.

Questions about this item

How do I wire the RS-485 host link and the 16 supervised inputs, and which step is often missed?

Connect the host to the RS-485 terminals, then wire each of the 16 inputs with the specified end-of-line resistors for standard or range-based supervision; the step most often missed is fitting those resistors at the far end of every input loop.

What components will need attention or replacement over time in the MR16IN-S3?

The embedded crypto memory chip and the two programmable relay outputs are the parts most likely to require service or replacement after extended operation.

At what point does the AES encryption throughput become the limiting factor during sustained event traffic?

With AES 128/256 bit encryption processed on every command from the 16 inputs, the crypto engine is the first limit reached under continuous high-volume event streams.

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