Aiphone
SKU: NIR-31
Overview
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Overview
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The Aiphone NIR-34 is a surface-mounted corridor light designed to mount directly to walls in multi-tenant commercial buildings, hospitals, schools, and corporate campuses. This display unit shows up to four names or room identifiers and integrates with Aiphone's master station and door station ecosystems to provide visual call routing and occupancy status in high-traffic hallways and common areas.
The NIR-34 serves as a distributed call indicator and naming display across a building's intercom network. Unlike a central master station, this corridor light operates as a supplementary visual reference point—critical in environments where calls need to route to multiple people or departments simultaneously or where staff move between zones. Fire-resistant ABS plastic construction meets commercial building codes without requiring special ventilation or cooling. The unit mounts flush to the wall surface (144 mm H × 306 mm W × 24 mm D), consuming minimal hallway space while remaining readable from distance.
The NIR-34 connects to Aiphone's NIM (Network Intercom Master) product line through standard low-voltage intercom wiring. It operates as a passive or active display unit depending on your master station configuration—the unit lights up when calls arrive at assigned extensions and remains dark during idle periods. It pairs with audio door stations (NI-JA), sub-stations (NI-BA), and ceiling speakers (NI-LB) to create a complete distributed intercom system for multi-tenant or multi-floor deployments. Power is supplied through the IS-PU-UL 48V DC power supply, shared across all connected intercom devices in the loop.
The NIR-34 excels in buildings with shared or mobile staff: medical clinics where multiple doctors rotate between exam rooms, corporate campuses with shared conference facilities, K-12 schools with office suites, and multi-tenant buildings where departments occupy multiple floors. Install one unit per hallway or common area to route incoming calls visually without requiring staff to crowd around a single master station. The four-name capacity accommodates department name-plates, room identifiers, or staff-on-call rotations, reducing confusion in high-traffic environments.
The NIR-34 includes the display housing with magnetic nameplates (up to four name slots). Mounting hardware and intercom wiring connections are provided. Refer to the NIM Installation and Operation Manuals (available through the Aiphone intercom systems documentation hub) for exact wiring specifications and master station pairing steps.
Q: Can I use the NIR-34 standalone, or does it require an Aiphone master station?
A: The NIR-34 is a display device and requires connection to an Aiphone master station (NIM-20B or NIM-40B) to function. It cannot operate as a standalone call unit.
Q: How many rooms or departments can be displayed on the NIR-34?
A: The NIR-34 displays up to four names via magnetic nameplates. Each slot can show a room number, department name, or staff assignment.
Q: Is the NIR-34 suitable for outdoor or wet environments?
A: No. The NIR-34 is rated for indoor commercial use only. Its fire-resistant ABS plastic housing is not sealed against moisture or UV exposure. For outdoor intercoms, consult other Aiphone product lines designed for exterior mounting.
Q: What is the maximum distance I can run wiring from the master station to the NIR-34?
A: Refer to the NIM Installation and Operation Manuals for wiring distance limits. Typical commercial intercom wiring runs 100–300 feet depending on cable gauge and master station configuration.
Q: Can I combine the NIR-34 with other Aiphone corridor light models (NIR-31, NIR-32)?
A: Yes. You can mix corridor light models in the same system to create varied display configurations across different floors or departments without changing the master station.
Q: What type of power supply does the NIR-34 use?
A: The NIR-34 connects to the IS-PU-UL 48V DC power supply, which is shared across all intercom devices in the wired loop.

I spec the NIR-34 into multi-floor corporate and healthcare deployments where call routing needs to be visual and decentralized. The four-name capacity is the real differentiator here—you get enough granularity to assign specific departments or staff rotations to each light, without requiring every hallway to have a full master station. In a 10-story medical office building or a K-12 campus with satellite offices, this compact 24 mm profile disappears into the wall while keeping call traffic organized.
Technical Highlights:
Deployment Considerations:
The NIR-34 is the right choice for multi-tenant healthcare, corporate, or educational campuses where staff rotate between floors and call visibility needs to be distributed. If your building has permanent single-occupancy rooms or fixed departmental assignments, a simpler single- or two-name variant (NIR-31 or NIR-32) may suffice and cost less.
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