Owners manual
Page 11
a) Telephone equipment must be mounted at the proper height for people who
use wheelchairs.
b) Make sure the called party knows how to make the visual indicator turn on.
The signal is for hearing impaired and means that help is on the way.
c) Make sure the called party can determine the origin of the call without
interaction from the occupants. This is accomplished by a caller ID (up
to 20 digits) and/or by the standard digital voice announcer message.
This function is used when the occupant of the elevator is speech and/or
hearing impaired.
d) When installing the Dialink inside an elevator phone cabinet you should
install a sign with raised and Braille lettering on the outside. A door
handle allowing the physically impaired to open the door should also be
installed.
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17 - Wiring.
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We strongly recommend that the wires used to supply the telephone line to the
Dialink emergency speakerphone be 20 AWG shielded, twisted pair. The shield
must be continuous from the speakerphone through the traveling cable to the
incoming telephone line termination. Make sure the shield is connected to a
true EARTH GROUND AT ONE END ONLY!! This will minimize the interference from
AC inductance and RF (radio frequency).
18 - Telephone lines.
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For best operation, each Dialink emergency speakerphone must be installed on
a analog touch tone (or pulse) telephone line. Compatible lines types are
standard analog two-wire central office lines (POTS) from the local telephone
company or most internal PBX systems.
The Dialink emergency telephone should be installed on a dedicated telephone
line. Sharing a telephone line with other devices (e.g. fax machines, alarm
systems, another telephone, etc.) could affect code compliance and/or cause
the Dialink to malfunction.
The telephone line will be assigned a telephone number which allows the
called party to call back to the location of the emergency. Take care to
note this number abd supply it to the called party.