Aiphone NIR-7HW Bathroom Pull Cord Call Button
Overview
The Aiphone NIR-7HW is a bathroom call button designed for healthcare, assisted living, and hospitality environments where staff need to respond quickly to resident or guest requests. The unit combines a pull cord with a flush-mount button housing, integrating into standard 1-gang electrical boxes to minimize visual intrusion while maintaining constant accessibility. The NIR-7HW pulls into existing Aiphone intercom systems—specifically the NIM-20B and NIM-40B call master stations—to route alerts directly to nursing stations, front desks, or housekeeping departments.
Key Features
- 21-5/8 inch pull cord: Extends far enough to reach from toilet, shower, or bathtub without requiring residents to move. The longer reach reduces fall risk by keeping occupants stable while activating the call—critical in bathroom environments where slip hazards are highest.
- Flush-mount design with 1-gang box compatibility: Installs into standard electrical boxes without protruding fixtures that could catch on wheelchairs, walkers, or clothing. Recessed installation also prevents accidental activation from contact with fixtures.
- Fire-resistant ABS plastic construction: Meets safety codes for healthcare and multi-occupancy buildings. ABS withstands moisture, soap residue, and cleaning chemicals without degradation—bathroom environments demand material durability that cheap polymers cannot deliver.
- Compact button dimensions (4-3/4" H x 2-3/4" W x 9/16" D): Fits within standard single-gang electrical boxes without requiring wall modification. The shallow 9/16-inch depth means minimal disruption to existing wall framing and electrical runs.
- Integration with NIM master stations: Routes call signals to NIM-20B (20-call capacity) or NIM-40B (40-call capacity) master stations. Both stations include handsets and desk mounting, allowing staff to take calls and dispatch help without walking to each bathroom.
- Paired system flexibility: Works alongside other Aiphone components—NIR corridor lights, audio door stations (NI-JA), and ceiling speakers (NI-LB)—to build a complete nurse-call or guest-service network across multiple floors or buildings.
Integration and Compatibility
The NIR-7HW requires the IS-PU-UL 48V DC power supply (UL-listed) to operate within the Aiphone system. Installation connects the pull cord to the master station wiring, typically via 2-pair or 4-pair cable run through walls or conduit. The unit integrates with the NIM-20B or NIM-40B master station to create a wired call-response network—no IP, no network switch, no VMS required. This analog design simplifies installation in older buildings where running network cable is impractical, and eliminates cybersecurity concerns associated with networked devices.
What's in the Box
The NIR-7HW is supplied as the button and pull cord assembly only. The system also requires the IS-PU-UL power supply, NIM master station, and appropriate cable. Mounting hardware for 1-gang box installation is included with the unit.
Frequently Asked Questions
Q: Can the NIR-7HW be used in a retrofit installation without a new master station?
A: Only if you already have a compatible Aiphone master station (NIM-20B or NIM-40B) installed and wired. The NIR-7HW does not function as a standalone device—it must connect to a master station on the same 48V DC system.
Q: What is the pull cord length, and can it be shortened?
A: The cord is 21-5/8 inches long. Shortening it is not recommended by the manufacturer, as the length is designed to ensure reach from typical bathroom fixtures without strain on the cord mechanism.
Q: Is the NIR-7HW suitable for outdoor or wet-room installations?
A: No. While the ABS plastic is fire-resistant and moisture-resistant, the unit is designed for indoor bathrooms with standard humidity. Full-submersion environments or high-pressure wash-down areas require a different product line.
Q: Does the NIR-7HW require any special electrical code compliance?
A: The IS-PU-UL power supply is UL-listed, so the system meets U.S. electrical codes. Installation must comply with local building and healthcare facility standards—consult your facility's engineering or infection control team before deployment.
Q: Can the NIR-7HW integrate with VMS software like Milestone or Axis Camera Station?
A: No. The NIR-7HW is a hardwired analog call button with no ONVIF, IP, or software integration. It works only with Aiphone master stations and cannot connect to network-based video management systems.
I've spec'd the NIR-7HW into healthcare and assisted-living renovations for years, and the 21-5/8-inch cord length is the first thing I check. In bathroom falls—which account for a significant share of injury claims in congregate settings—proximity matters. That cord reach means a resident seated on a toilet or standing unsteadily in a tub can activate the button without overextending or losing grip. The fire-resistant ABS housing also matters; healthcare facilities enforce strict material standards, and the NIR-7HW passes inspection without pushback.
Technical Highlights:
- 21-5/8-inch pull cord: Delivers accessibility from bathtub edge, toilet, and shower without requiring residents to move to reach a wall-mounted button. Studies show longer-reach designs reduce activation delays and fall risk during the call sequence.
- Flush-mount 1-gang box installation: Eliminates protruding fixtures that catch wheelchairs or walker feet. The 9/16-inch depth preserves electrical box clearance and looks less institutional than surface-mount alternatives.
- Fire-resistant ABS plastic: Withstands moisture and cleaning chemicals used in healthcare settings. The material won't degrade under daily disinfection with quaternary ammonium or bleach-based solutions.
Deployment Considerations:
- The NIR-7HW is a hardwired analog button—it does NOT integrate with IP intercom systems or VMS software. If your facility runs Axis, Hikvision, or Milestone, this product is incompatible. You must use a standalone Aiphone system or choose an IP-based call button instead.
- Power requires the IS-PU-UL 48V DC supply and a master station (NIM-20B or NIM-40B). Plan cable runs during rough-in; retrofit installations in finished walls become expensive if runs are long or conduit doesn't exist.
I typically spec the NIR-7HW for single-floor assisted-living wings and small hospital bathroom zones where a 20-call or 40-call master station is already in place. It's also the right choice for hospitality properties that want hardwired guest-service calls without the cost and complexity of a networked system. Avoid it if your facility demands integration with a modern VMS or network-based infrastructure.
