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The Auteldac 102 intrinsically safe mine
push button telephone forms part of a system complete with it’s surface interface.
It is purpose-designed for underground coal mining installation and is tough, weather
resistant and built to withstand operator abuse in environmental extremes.
The Auteldac 102 is made from conductive glass filled polyester with a robust handset
and armoured steel or curly cord. The piezo electric ringer gives over 85 dB SPL for
ringing and emergency calls.
[ Typical Telephone System]
Operation is simple, with finger guide holes
to eliminate mis-dialing even when wearing thick gloves. A dedicated ‘EMERGENCY’
button operates an alert (to an Emergency Desk, if fitted), or can be pre-programmed to
dial an emergency number. Internal links provide three recall options
and LD/MF dialing to enable automatic connection via a surface interface to PABX
and PAX/PBX surface exchanges. All exchange facilities can be
accessed when using the star, hash and recall buttons when
tone dialing is selected. The recall button provides all the usual
facilities.
Time-out is standard and should the handset be left off-hook, the Auteldac 102 will
automatically revert to normal on-hook status after a period of three minutes
(programmable).
The all electronic internal module is conformal coated for reliability. An easily
accessible Ni-MH battery provides the internal operating supply and is trickle
charged from the surface interface down the telephone line.
Connection is via a simple twisted pair cable that can be contained within a multi-core if
required. Up to three telephones can be connected for
"party line" working from the line pair by a four-core link.
An auxiliary (‘AUX’) output allows connection of additional beacons or ringers
powered either from their own supply or the telephone battery
(subject to certification
conditions).
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customer service: customerservice@gai-tronics.com 
