Home LEM Series LEM-1DL Wiring Diagrams

2 LEM-1DLC with SP-20N/A Ceiling Speaker, with Call Button

Updated on February 17th, 2026

These diagrams show how to connect 2 LEM-1DLC Answering Station to an SP-20N/A with an external, third-party call button.

1 LE-D Door Station, 1 LEM-1DL Answering Station, with External Signaling 1 LE-D Door Station, 1 LEM-1DL Answering Station, with AC-10S Keypad and External Signaling 1 LE-D Door Station, 2 LEM-1DL Answering Stations 1 LE-D Door Station, 2 LEM-1DL Answering Stations, with External Signaling 1 LE-D Door Station, 2 LEM-1DLC Answering Stations, with External Signaling 1 LE-D Door Station, 2 LEM-1DLC Answering Stations 1 LE-D Door Station, 3 LEM-1DL Answering Stations 1 LS-NVP Door Station, 3 LEM-1DL Answering Stations 1 LE-D Door Station, 3 LEM-1DLC Answering Stations 1 LE-D Door Station, 4 LEM-1DL Answering Stations 1 LE-D Door Station, 4 LEM-1DLC Answering Stations 2 LEM-1DLC with SP-20N/A Ceiling Speaker, with Call Button 3 LEM-1DLC with 1 SP-20N/A Ceiling Speaker

Articles in this section

1 LE-D Door Station, 1 LEM-1DL Answering Station, with External Signaling

1 LE-D Door Station, 1 LEM-1DL Answering Station, with AC-10S Keypad and External Signaling

1 LE-D Door Station, 2 LEM-1DL Answering Stations

1 LE-D Door Station, 2 LEM-1DL Answering Stations, with External Signaling

1 LE-D Door Station, 2 LEM-1DLC Answering Stations, with External Signaling

1 LE-D Door Station, 2 LEM-1DLC Answering Stations

1 LE-D Door Station, 3 LEM-1DL Answering Stations

1 LS-NVP Door Station, 3 LEM-1DL Answering Stations

1 LE-D Door Station, 3 LEM-1DLC Answering Stations

1 LE-D Door Station, 4 LEM-1DL Answering Stations

1 LE-D Door Station, 4 LEM-1DLC Answering Stations

2 LEM-1DLC with SP-20N/A Ceiling Speaker, with Call Button

3 LEM-1DLC with 1 SP-20N/A Ceiling Speaker