retail secuirty, business security, entry control, aiphone The LEM-1DLS Access Sentry System is a convenient 2-station entry control system and is suitable in various applications including offices of all sizes, courthouses, hotel / motel door entries, retail and convenience stores, and virtually any type of small secured facility. Identifying a visitor before allowing them access improves the security and adds convenience to any business. The set includes a desk or wall mount master station, a surface mount door station, and an AC transformer to power the system. A call from the door station sounds a momentary electronic tone at the master station. To answer, simply press the “talk” button to speak to the person outside the door, and release to listen. The person at the door station speaks hands free. A door release mechanism can be activated by pressing the door release button. The voice volume and the incoming call tone volumes are adjustable at the master station. The door release button is designed to activate an electric strike, or can be modified in the field to work with a magnetic lock. Different styles of door stations are also available: flush mount with stainless steel cover (LE-DA); surface mount metal (LE-DL). Vandal proof weather resistant (LS-NVP/B), flush mounted in a 3-gang masonry box, or surface mounted in the SBX-NVP.


  • Simple door answering (1 door)
  • Electronic call tone from door station
  • Press-to-talk communication at master
  • Hands free communication at door
  • Monitor entry area undetected from inside
  • Voice and call tone volume controls
  • Variety of remote stations available
  • Door release
  • Simple 2 conductor wiring between door and master station (with separate 2 conductor wiring for door release)

Power source12-16V AC or 12-24V DC
Use PT-1210N AC Transformer or power source within the specified voltage range.
Current ConsumptionMax. 4W (AC 16V). Max. 200mA (DC 24V).
Output100mW @ 20 ohms
CommunicationPress-to-talk, release-to-listen at master station.
Hands free at remote station.
CapacityLEM-1DL: 1 master, 1 remote
LEM-1DL/C: 2 masters, 1 remote
WiringShielded wire is recommended for communication.
2 conductors from master to remote
3 conductors beteen LEM-1DL/C masters
2 conductors from master to power source
Door Strike Wiring2 conductors from master to door strike (in a separate jacketed cable from the communication wiring)
Wiring Distance650’ w/22AWG; 1570’ w/18AWG
Door release button contact30V, AC or DC, 1A
Speaker sensitivity40dB
Total Harmonic DistortionLess than 5% at rated output power
Signal to Noise Ratio60dB
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”

Communication Network & Wiring:

retail secuirty, business security, entry control, aiphone

LEM-1DLS Troubleshooting Flow Chart

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