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Machine room intercom
Janus
Machine Room Intercoms

SHW-MRI

Compliant with
Overview
The JANUS® Machine Room Intercom provides simple, direct communication between the machine room and elevator phones, supporting clear coordination during service and emergency situations. Designed for installations that do not require a centralized communication system, it enables responders to connect with elevator passengers using a shared phone line.

Available in configurations supporting one or two elevator phones, the system offers a compact, easy-to-install solution with minimal wiring requirements. With straightforward in/out connections and reliable analog communication, it delivers an efficient option for applications where simplicity and cost are key considerations.

System Configuration

  • Supports communication for one or two elevator phones (SHW-MRI-1 / SHW-MRI-2).
  • Shares a single phone line between elevator phone and intercom.
  • Provides a direct connection between machine room and elevator communication devices.
  • Designed for applications without a centralized communication system.

Communication & Operation

  • Enables direct communication between responders and elevator passengers.
  • Operates using standard analog communication.
  • Provides straightforward, always-available communication without complex controls.
  • Designed for simple, reliable operation in machine room environments.

Installation & Wiring

  • Simple in/out connections reduce installation time and complexity.
  • Single-pair wiring connects elevator phone and phone line.
  • No network infrastructure or advanced configuration required.
  • Compatible with standard analog (POTS or PBX) phone lines.

Design & Durability

  • Compact enclosure mounts easily to flat machine room surfaces.
  • Stainless steel construction supports long-term use in demanding environments.
  • Designed for installation in space-constrained areas.
  • Operating temperature range: 32°F to 122°F.

Product Variants

SHW-MRI-1SHW-MRI-2
1 Elevator Phone2 Elevator Phones
ImageMachine room intercom 1Machine room intercom 2

Files and Resources

Installation Manual_SHW-MRI-1
Install Guides
Download
Installation Manual_SHW-MRI-2
Install Guides
Download
Datasheet_Machine Room Intercom_SHW-MRI
Data Sheets
Download

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