Aiphone IMU-100 Security Window Intercom Control Kit

Aiphone IMU-100 Security Window Intercom Control Kit

Overview

The Aiphone IMU-100 is a control and operation unit kit designed for security window and cashier intercom deployments. Sold as a complete set, it includes the MU-100 Control Unit and OU-100 Operation Unit with supplied connector. The IMU-100 supports both hands-free VOX (voice-operated) operation and push-to-talk (simplex) communication, making it suitable for high-traffic security and customer service environments. This kit delivers 3W transmit output and 1.5W receive output with adjustable ambient noise cancellation, ensuring clear communication across installation distances up to 66 feet.

Key Features

• Dual Communication Modes: Operate in hands-free VOX mode or traditional push-to-talk simplex configuration with adjustable VOX sensitivity
• Transmit Power: 3W 4-ohm output with 1.5W 16-ohm receive capacity for reliable audio delivery across extended distances
• Ambient Noise Control: Built-in noise cancellation to reduce background interference in busy retail, banking, or security environments
• Multi-Unit Scalability: Supports connection of up to 6 operation units away from the MU-100 via supplied connector, enabling multi-position deployments from a single control unit
• Flexible Mounting: Desk-mounted or under-counter mounting with supplied bracket; OU-100 Operation Unit designed for counter-top deployment
• Volume Controls: Separate speaker, transmit, receive, and standby volume controls with hi/lo switch for rapid adjustment; headset support via 3.5mm plug with 40mW–100mW input rating (32-ohm impedance)
• LED Indication: Transmit, speaker, receive, and standby status LEDs for operator feedback
• Optional Microphone: Socket for IME-100 Gooseneck Microphone (sold separately) to support hands-free operation in desk-mounted configurations
• Temperature Rating: Operates reliably from 14°F to 140°F (-10°C to 60°C), suitable for climate-controlled indoor installations
• Wiring Specification: Connects speaker driver to control unit via 2 × 2-conductor shielded cable (use Aiphone #822202 or #821802) with maximum run distance of 66 feet using 22 AWG or 18 AWG wire

Integration and System Architecture

The IMU-100 (often searched as IMU 100) functions as the central hub for Aiphone's IM-1 Cashier/Security Window System. The control unit integrates with the IAI-100 Speaker Driver and Acoustic I/O Tube Kit to deliver audio through building-standard acoustic tubes or window cutouts. For expanded microphone placement, the IME-100 Gooseneck Microphone connects directly to the control unit socket. The ISE-100 Proximity Sensor can be added to automate activation in high-frequency installations. Power requirements are satisfied by the PS-2420UL 24V DC power supply (2A, UL listed), which must be specified separately during system design.

Package Contents

• MU-100 Control Unit
• OU-100 Operation Unit
• Supplied connector for unit linking
• Desk/under-counter mounting bracket

Jerry Tildsen

I've deployed the Aiphone IMU-100 in several bank and retail security installations, and it remains a solid choice for fixed window intercoms where wired infrastructure is already in place. The kit's simplicity—one control unit supporting up to 6 remote operation units—reduces installation complexity compared to networked alternatives, and the 3W transmit power is sufficient for standard window and partition configurations.

Technical Highlights:

• VOX + Push-to-Talk Flexibility: The selectable communication modes allow operators to choose hands-free or button-activated operation depending on workflow; VOX sensitivity adjustment prevents nuisance activation in noisy environments.
• Extended Reach: The 66-foot cable run specification using standard 22 AWG shielded wire supports layouts across larger banking floors or secure facilities without requiring additional amplification.
• Ambient Noise Cancellation: A practical feature in high-traffic areas where HVAC noise or customer activity would otherwise degrade clarity.

Deployment Considerations:

• Specify the PS-2420UL 24V DC supply and appropriate shielded wiring (Aiphone #822202 or #821802) early in the project; these are not included in the kit.
• If microphone placement is remote from the control unit, budget for the IME-100 Gooseneck Microphone and plan cable routing during acoustic tube installation.
• Test VOX sensitivity on-site after installation, particularly in environments with background music or machinery noise, to optimize handset responsiveness.

The IMU-100 is best suited to organizations seeking a proven, wired intercom solution with minimal IT dependency. It lacks the remote access and analytics of network-based systems, but delivers reliable audio clarity where voice communication is the primary requirement.