GAI-Tronics 293-103 S.M.A.R.T. Externally Powered Emergency Phones - Manual (Page 3)

PUB. 42004-377C
S.M.A.R.T. E XTERNALLY P OWERED ADA-C OMPLIANT E MERGENCY P HONES P AGE
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These functions are initially programmed during manufacturing and testing. After installation, they can
be programmed remotely via DTMF data calls, either manually or through TMA. Set the emergency
auto-dial phone numbers in accordance with your security plan. For most applications, the other function
settings will not need to be changed from their factory defaults. For details regarding configurable
options and the factory defaults, please refer to the programming section of this manual and the on-line
help available with TMA.
The emergency push button can be programmed to call three unique telephone numbers. The unique
telephone numbers include a primary telephone number and two backup, or roll over, numbers. In the
event an emergency call cannot connect to the primary telephone number (i.e., a busy signal or no
answer), the emergency phone will automatically dial the first backup, or roll over, number. Again, in the
event an emergency call cannot connect to first backup telephone number, the emergency phone will
automatically dial the second backup, or roll over, number. This sequence will continue either until the
emergency call is answered or the programmed number of retries is reached.
Each of the above S.M.A.R.T. Emergency Phones require a “Class 2” 12 V dc regulated power supply
(included) and can be connected to any of the following:
• Central Office (CO) line to the Public Switched Telephone Network (PSTN)
• 24 V dc or 48 V dc analog station port of Private Branch Exchange (PBX), Private Automatic
Branch Exchange (PABX) or KSU.
Connection may not be made to pay phone extensions or shared service (party) lines.
N OTE : Each telephone requires a dedicated power supply. Multiple telephones cannot be
connected to a single power supply. The power supply must provide galvanic isolation between its
input and its 12 V dc output. For dc-to-dc applications, galvanic isolation is required. Galvanic
isolation (separation) is achieved by using a transformer or opto-coupler.