Ten Call Master Addon

The Aiphone LEF-10S is a versatile master intercom station that supports up to 10 intermixable stations, allowing seamless communication between masters and substations. Designed for efficiency, this system alerts users to incoming calls from a substation or door station with a momentary electronic mono-tone and an LED indicator that remains illuminated for approximately 20 seconds.

With simple push-to-talk functionality, users can press the call button to speak and release it to listen. The receiving station operates hands-free for effortless communication. Substations can call the master station but cannot communicate with each other, ensuring controlled and streamlined conversations.

This model includes a gate release function, adding an extra layer of convenience for security applications.

Flexible Wiring Options

• When using substations that communicate only with the master, a three-pair wiring setup is sufficient.
• For systems where all master stations need to communicate with each other, a 20-conductor cable is required.
• Shielded wiring is recommended to minimize noise interference.

Power Requirements

• The system operates on 12V DC power.
• A PS-1225UL power supply is required to power the entire system.

Key Features

• Supports up to 10 stations (intermixable masters and subs)
• LED annunciation & tone alert for incoming calls
• Push-to-talk at the master, hands-free at the responding station
• Selective monitoring for enhanced control
• Privacy button to prevent eavesdropping
• Integration with video door entry systems
• Adjustable volume controls for voice, music, and call tones
• Selective door release capability

Technical Specifications

• Power Consumption: 30mA per station (12V DC)
• Audio Output: 800mW @ 20 ohms (reception), 500mW @ 20 ohms (transmission)
• Talk Channel: Single talk path with occupied LED indicator
• Wiring:
  • If using all master stations: 20-conductor cable
  • Substations: 2-wire homerun for single master setup, or 2 common wires + 1 individual wire per station (looped or homerun)
• Wiring Distance:
  • 650 ft with 22AWG wire
  • 1,600 ft with 18AWG wire
• Speaker Sensitivity: 40 dB
• Signal-to-Noise Ratio: 60 dB
• Total Harmonic Distortion: Less than 5% at rated output power
• Frequency Response: -3dB, 770-6800Hz
• Dimensions (H x W x D): 8-1/8" x 7-1/2" x 2-3/16"

The Aiphone LEF-10S is an ideal solution for commercial, residential, and industrial applications, offering reliable intercom communication with expandable station capacity and gate release functionality.