描述
Aiphone LEF-3 是 3 路選擇呼叫主機（模擬），系統最多 4 部主機、分機或門口機，設 LED 及提示音來電顯示。香港防盜為安裝商及經銷商，規格以原廠為準。
Aiphone LEF-3
Analog 3-Channel Master Station
The LEF-3 is a selective calling open voice style master station with the capacity of up to 4 total stations.
- Supports up to 4 total master, sub, or door stations
- LED and tone to announce incoming calls
- Push-to-talk to calling master station
- Hands-free communication at responding station
- Selective monitoring
- Voice and call tone volume controls
Power Source
12V DC, 300mA per station. Use PS‑1208UL, or PS-1225UL for systems with BG-10C.
Output
800mW @ 20Ω (reception) 500mW @ 20Ω (transmission)
Communication
Press-to-talk, release-to-listen at master station. Hands-free at responding station.
Talk Channel
1 talkpath. Occupied LED when in use.
Wiring
5 common wires (E, R, Y, +, -), plus 1 individual wire per station, looped. Sub stations: 2 wires homerun in single master systems, or 2 common wires (E, -), plus 1 individual wire per station, looped or homerun
Capacity
Up to 4 stations, intermixable
Wiring Distance:
650′ w/22AWG; 1600′ w/18AWG
Operation Temp
32°~104°F (0°~40°C)
Dimensions
7-1/16″ H x 5-5/8″ W x 2-1/8″ D
