Cooper Security M-Series Manuale delle Istruzioni Pagina 26

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3. Installation
Installing a Communicator
The 9750 control unit contains a built in communicator on the main PCB. In
addition the control unit can be connected to a separate communication
device using a wiring harness connecting to interface pins on the main PCB.
Built in Communicator
The built in communicator is a 300 Baud Auto Dialling Modem. The communi-
cator can be used for:
Transmitting alarm signals to alarm receiving equipment at a central
monitoring station using either Scancom Fast Format, Scancom SIA
(Security Industry Association), or Contact ID.
Connecting to a PC based at a remote engineering centre. By using
Scantronic <Downloader> software, the remote PC can up- or download
system parameters (including the event log and diagnostics), set and
unset the alarm system, and carry out other special functions.
Telephone Line
The built in communicator can be connected directly to an ex-directory line
used exclusively for alarm communications.
Where an exclusive line is not available and other apparatus is connected to
the line, for example an answer machine, the built in communicator provides
a series connection with line divert for the other apparatus. When triggered,
the communicator seizes the line and disconnects the other apparatus while
the communicator is operational. When the communicator has shut down, it
reconnects the other apparatus.
Note: Ideally, no other equipment should be connected to an exclusive line.
Three Way Calling
The 9750 also provides a Three Way Calling facility to make sure the built in
communicator can always use a shared telephone line.
To use this facility, the local exchange must provide the Three Way Calling
service on the customer's line.
Line Monitoring
The 9750 provides functions programmed by commands 106 and 107 to
ensure that the telephone line is connected and working, and to indicate a
line failure:
While communication is enabled Line Monitor continually checks the
line voltage to ensure that the line is connected.
Line Integrity (programming command 107) checks the line to make
sure the local exchange is still responding.
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