Fire-Lite IPDACT, Installation Manual

Page: 15 / 51

IPDACT Module - Description
II-12
Doc. Dm373-I
Rev. 2.0
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TO-AP: terminals proving telephonic connection to the control panel.
This must be connected to the control panel connection which this is
using to access the PSTN.
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FROM-AP: terminals receiving telephonic connection from the control
panel. This must be connected to the control panel connection which this
uses to provide a line to the subscriber numbers.
Choc block connection to the Public Switched Telephone Network
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PSTN: access terminals to the public switched telephone network. This
connection is supervised. In cases where there is a failure, the analog
output activates.
Choc block connection to the client telephone numbers
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PHONE: terminals providing telephonic connection to the telephone
numbers possessed by the client at home or at installations.
Choc block associated to the analog output control
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OUT NC: terminals whose state is normally short-circuited. On activating
the output, these terminals stop being short-circuited. Short circuit is
carried out through an electric-mechanical relay. The technical data for
this can be found in appendix V.3.
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OUT NO: terminals whose state is normal open. On activating the output
these terminals pass to a short circuit state. Short circuit is carried out
through an electric-mechanical relay. The technical data for this can be
found in appendix V. 3.
This output is also related to the input status of the PSTN and LAN and with
the IP connectivity status with the alarms reception center. When there is IP
connectivity, the OUT NO terminals will be in their normal state i.e. open. If
there is a failure in IP connectivity, then these terminals pass to a closed
state.
Choc block associated to an analog input
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INPUT: terminals associated to the input. This input is supervised and
considered inactive when a 1K ohms resistance is detected between its
ends. When an open circuit is detected, the device, which should be
connected to this input, is regarded as having been disconnected i.e. it
has been sabotaged.
In UL compliance installations, this input should not be used and
must be bridged with a 1K resistance.