A103 Intrinsically Safe Telephone0 pages

GAI-Tronics Mining
A103
Intrinsically Safe Telephone

Intrinsically safe

No moving parts

Wall mounting, simple installation

Rugged and weather resistant to
IP55

The all-electronic internal module is
conformal coated for reliability. An
easily accessible Ni-MH battery
module in each telephone provides the
internal audio amplifier's operating
supply and is trickle charged from the
telephone line.

DTMF/LD dialling and recall options

The A103 is a push button telephone,
purpose-designed for underground
coal mining installation and use,
providing automatic dialling via a
surface interface into a standard PAX
or PABX surface exchange. Its
ruggedised, welded steel casing with
stove-enamel coating is saline
resistant. The telephone is made of
glass filled polyester with
polycarbonate curly cord handset
which is impact resistant and sealed to
IP55. Twin speakers give >90dBA
SPL for ringing and when used as a
loudspeaker unit under emergency
conditions.

Full 15 button keypad, plus
Emergency push button operation

Image for Illustration purposes only

ATEX Certified

Robust handset- curly cord

Large tactile buttons, easy to see
and operate

Connection is via a simple twisted-pair cable
that can be contained within a multi-core
cable if required. Up to three telephones can
be connected for ‘party-line’ working from one
line pair by a four-core link.
Operation is simple, with finger guide holes for
ease of dialling, even when wearing thick
gloves. An easily distinguishable button
operates an emergency alert (to an
Emergency desk, if fitted).
The telephone may be configured for either
DTMF or LD dialling. When DTMF has been
selected, the Star, Hash and Recall buttons
enable access to all of the extended functions
of the exchange.
Immediate re-dialling is achieved by use of
the Recall button.