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The Aiphone Audio Entry System (LEM-1DLS) is a three-piece intercom system that features a single call surface/desk mount master station with built-in door release relay along with a weather resistant and surface-mountable door for a single gang electric box. Each Aiphone Audio System comes with a single 12V AC 110V AC input Plug-in transformer.

Applications for the Aiphone Audio Entry System (LEM-1DLS) include front entries to Multi-Family Housing and Property Management.

Aiphone LEM1DLS


Power source: 12-16V AC or 12-24V DC
Use PT-1210N AC Transformer or power source within the specified voltage range.
Current Consumption: Max. 4W (AC 16V). Max. 200mA (DC 24V)
Output: 100mW @ 20 ohms
  • Press-to-talk, release-to-listen at master station.
  • Hands free at remote station.
  • LEM-1DL: 1 master, 1 remote
  • LEM-1DL/C: 2 masters, 1 remote
Wiring: Shielded wire is recommended for communication.

  • 2 conductors from master to remote
  • 3 conductors between LEM-1DL/C masters
  • 2 conductors from master to power source
Door Strike Wiring: 2 conductors from master to door strike (in a separate jacketed cable from the communication wiring)
Wiring Distance: 650’ w/22AWG; 1570’ w/18AWG
Door release button contact: 30V, AC or DC, 1A
Speaker sensitivity: 40dB
Total Harmonic Distortion: Less than 5% at rated output power
Signal to Noise Ratio: 60dB
Frequency Response: -3dB, 770-6800Hz
(H x W x D):
  • LEM-1DL, LEM-1DL/C:
    7-1/16” x 5-5/8” x 2-1/8”
  • LE-D:
    4-3/4” x 3-1/2” x 1-1/8”

Aiphone LEM-1DLS Boxed Set Wiring

To place your order for an Aiphone Audio Entry System (LEM-1DLS) or for a quote, contact your local IDN Branch.

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Kwame Shorter is the Digital Communications & Website Specialist at IDN, Inc.