Functions:
1) Applied to 2 x 8 or 3 x 8 buildings
2) Indoor station adopts 2-pair cable. Any fault of extension will not impact on

    normal operations of the system
3) Outdoor station is subject to intelligent control by microcomputer chip ensures

    stable running
4) The talks through indoor unit are kept secret
5) Adopts a connection layout of 1 common cable and 1 selection cable between
    outdoor and indoor units
 
Specification (outdoor station):
1) Power supply: DC 12V/1000MA
2) Power consumption: 40MA/300MA
3) Distortion: ≤8%
4) SNR: ≥50dB
5) Capacity: 24 houses
6) Operating temperature: -35~+75oC
7) Dimensions: 330 x 128 x 50mm, 310 x 110 x 40mm (advanced embedded)
8) Installation: wall embedded or fixed on an iron door

Specifications (indoor unit):
1) Power supply: BUS-cable
2) Power consumption: 0MA/100MA
3) Chime: Dingdong chime ≥70dB
4) Distortion: ≤8%
5) SNR: ≥50dB
6) Dimensions: 200 x 80 x 37mm
7) Operation temperature: -10~+55oC
8) Installation: wall mount