NIR-LB

The Aiphone NIR-LB (also referenced as NI-LB) is a flush-mount ceiling speaker designed for use with the NI-SB ceiling microphone in NIM-Series nurse call systems, enabling hands-free audio announcements and two-way communication in multi-bed patient rooms.
It receives voice from master stations and works in tandem with the NI-SB microphone (mounted 50cm away to prevent feedback) for room-wide paging or staff responses.
Key Specifications
Feature
Specification
Mounting
Flush ceiling mount (Ø105mm cutout, 66.7mm depth)​
Material
ABS plastic
Power
Supplied by NIM master station
Communication
Hands-free receive only (pairs with NI-SB)
Wiring
Ø0.9mm (18AWG) up to 50m to master; separate audio lines​
Compatibility
NIM-Series masters, NI-SB microphone
Dimensions
Ø105 × 67 mm (cutout: 4-3/16")