NXT-MSC Controller - Key Product Highlights

NXT-MSC Controller - Key Product Highlights

1.0 Introduction

The NXT-MSC (Mercury-Powered) Controller represents the top-tier evolution of Keri's IP-based hardware platform. By embedding Mercury Security open-platform firmware directly into Keri’s IP hardware architecture, the NXT-MSC controller combines low-cost Ethernet infrastructure with enterprise-grade access control features.



Designed for mid-market to enterprise-scale installations, the NXT-MSC 2-door or 4-door controller delivers high-speed local decision-making, sophisticated I/O logic, and seamless native integration into Keri’s Doors.NET or Borealis software management platforms.


2.0 Key Technical Specifications

FeatureNXT-2D-MSC SpecificationNXT-4D-MSC Specification
Door Capacity2 Doors (Up to 4 Readers with In/Out mode)4 Doors (Up to 8 Readers with In/Out mode)
Cardholder Memory48,000 to 100,000 credentials48,000 to 100,000 credentials
Event BufferUp to 50,000 local off-line eventsUp to 50,000 local off-line events
Onboard ConnectivityNative TCP/IP Ethernet (10/100 Base-T, RJ-45)Native TCP/IP Ethernet (10/100 Base-T, RJ-45)
Reader ProtocolsNXT 4-wire, Wiegand (via RM3/WI-Plus), OSDPNXT 4-wire, Wiegand (via RM3/WI-Plus), OSDP
Data Encryption128-bit AES network encryption128-bit AES network encryption
I/O ExpansionUp to 2× NXT-4x4 Modules (10 Inputs / 10 Outputs total)Up to 4× NXT-4x4 Modules (20 Inputs / 20 Outputs total)
Power Input+10 to +14 VDC @ 570 mA base+10 to +14 VDC @ 650 mA base

3.0 Key Product Highlights & Engineering Advantages

  • Mercury-Powered Intelligence:
    Leveraging Mercury Security firmware enables high-end functionality including 6-state supervised inputs, local anti-passback, double-card presentation macros, area control, and occupancy counting.

  • Up to 50% Infrastructure Savings:
    Native TCP/IP communication runs directly over standard CAT-5/6 network cabling, eliminating expensive multi-conductor shielded home-run wiring.

  • In/Out Reader Doubling:
    Utilizing Keri’s 4-wire NXT proximity readers allows two readers (entry and exit) to share a single reader port on the controller, effectively doubling door monitoring density.

  • Wireless Lock Compatibility:
    Seamlessly integrates with Allegion AD, NDE and LE series and Assa Abloy Aperio wireless locksets, extending access control to interior doors without pulling wire.

  • Zero-Touch Configuration:
    Features embedded MAC addresses and automatic network discovery within Doors.NET for fast, hassle-free field deployment.

  • High-Level Systems Integration: Integrates natively with elevator control modules, third-party intrusion alarms, and video management systems (VMS).