China HAG-1T Antinoise Auto-Telephone:
HAG-1T Antinoise Auto-Telephone
1)Chapter 1 of Part 4 of the “ Steel Ship Classification Rules" of the China Classification Society:
2)YD/T729-94 method for automatic exchanger network access;
3)GF002-9002.4 technique specification for automatic exchanger equipments in technical ministry of posts and tele communication
Colour:Dull black
Shell material: ABS
Cable gland: PG25;PG16
Ringing loudness: >75dB
IP rating: IP44
Headphone line 3m there are special requirements needs to be indicated