TP non-intrinsically safe telephone sets have been designed for exploitation in hard industrial conditions with no explosion hazard, including mining plants, (extensive humidity, noise, dustiness).
Thanks to the casing resistant to different atmospheric conditions and to lound calling signal, TP telephones can be used in:
- methane free mines
- production plants
- construction sites
With the standard analogue equipment of telephone exchanges of any type.
From subscribers’ equipment of analogue telephone exchanges.
TP technical data
|Polarity of the subscriber's line||any|
|Direct current resistance||max. 600 Ω|
|Input impedance||600 Ω|
|Local effect attenuation coefficient||min. 13 dB|
|Calling signal loudness level||min. 90 dB from 1 m distance|
|Dialling||PM / DTMF|
|Numbers memory||redialing up to 32 digits
direct access memory - 3 x 16 digits
indirect access memory - 10 x 16 digits
|Optical calling signal||visible from long distance|
|Casing protection degree||IP65|
|Dimensions||340x195x110 mm (without the receiver)
340x195x180 mm (with receiver)
|Weight||ca. 2 kg|
|Operating temperatures range||od -40 do +40 ° C|