IAH - type 2 explosion-proof safety telephone and explosion-proof telephone coupler
The explosion-proof safety telephone dial is pulse/double audio compatible intrinsically safe explosion-proof telephone, is explosion-proof communication system terminal equipment, OZH - 3 type explosion-proof telephone coupler (explosion-proof safety barrier) access to a variety of formats telephone exchange (or machine). The explosion protection this Ann telephone flag is Exib Ⅱ CT6.
The explosion-proof telephone has a plastic shell and aluminum alloy shell structure of two kinds of forms. Plastic shell explosion-proof safety telephone use ABS engineering plastics shell; Aluminum alloy shell explosion-proof safety telephone to hang, shell using aluminum alloy casting, the surface electrostatic spraying, with good dust, moisture, shock resistance. The explosion-proof explosion-proof telephone the highest level, can be applied to all including zero area, explosion-proof.