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3. Installation
To use this facility, the local exchange must provide the Three Way Calling
service on the customer's line.
Line Monitoring
The 9751 and 9752 provide a Line Monitor function programmed by com-
mand 106 to ensure that the telephone line is connected and working, and to
indicate a line failure. While enabled Line Monitor continually checks the line
voltage to ensure that the line is connected.
If this function detects a failure the system gives a programmable Line Fault
Response (programming command 106).
Test Calls
The 9751 and 9752 can be programmed to make test report calls to an Alarm
Receiving Centre. "Static" test calls can be programmed to occur at a set
time every day. "Dynamic" test calls occur 24 hours after the last call made
by the control unit. See "4. Programming" for details on how to program
these functions.
Statutory Information
Application
The built in communicator is suitable for connection to the following type of
networks:
(a)
Direct exchange lines (PSTN) supporting DTMF (tone) dialling.
(b)
PABX exchanges (with or without secondary proceed indication).
Note: The built in communicator is not suitable for connection as an extension to a
pay-phone or to 1 + 1 carrier systems.
Compatible PABXs
The built in communicator is only approved for use with compatible PABXs.
Correct operation in all circumstances is not guaranteed.
Approval
This product is manufactured to meet all European Economic Area telecom-
munication networks requirements.
The equipment has been approved in accordance with Council Decision 98/
482/EC for pan-European single terminal connection to the public switched
telephone network (PSTN). However due to differences between the indi-
vidual PSTNs provided in different countries, the approval does not, of itself,
give an unconditional assurance of successful operation on every PSTN
network termination point.
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