Installation manual

UK - ISDN Digital Phone Systems (ISDN 2e)
Comfort can connect to Digital Phones systems, but only onto an
analogue extension or terminal adaptor. The ringer module is not
required for such installations as the system doorphone operation has
to be set-up to initiate a dial-out in all modes. This is achieved using
responses. Full details are provided in the Applications Manual or on the
Technical Website www.comfort.org.uk/technical/indexapp.html.
Connection to Keyphone and PABX systems
A key telephone system may be to the TEL OUT socket. To access the
system with a key telephone, press the button which selects the
incoming line to which the system is connected, and press *, sign-in
code and # in the usual way. The system cannot be connected as an
extension of a key telephone system. Remote telephone access can be
achieved by dialling into the exchange line to which the system is
connected.
A PABX may be connected to the TEL OUT socket. A telephone may be
connected in parallel to the PABX, to be used for local system access.
Remote telephone access can be achieved by dialling into the exchange
line to which the system is connected. See Figure 2.7 for connection
(( With this method of connection, the extension phone will not
be able to access the system if the CO line for Comfort is in use.
Also, for remote access, the user must dial the precise number
and not the hunting line to ensure that Comfort can receive the
call.
MJ1
TEL IN
MJ2
TEL OUT
PABX
or
Key Phone
System
Incoming
Telephone
Line
CO 1
Control Phone
Fax
Figure 2.7 - Connection before PABX/Keyphone System
Connection to extension of PABX (Not for UL Installations)
It is also possible to connect the system as an (analogue) extension of
a PABX, for non-monitored systems. A normal telephone may be
connected to the TEL OUT socket for system access and for use as a
Comfort Installation Manual
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