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Safety Notice
Figure 51 identifies connectors for Safety Extra-
Low Voltage (SELV) and Telecommunications
Network Voltage (TNV) circuits on the control
unit's main PCB. These terms are used in
accordance with the definitions in Safety Standard
EN60 950.
The Installer must ensure that TNV terminals are
connected only to other circuits designated as
TNV circuits (for example, the PTSN) and that
SELV terminals are connected only to other
circuits designated as SELV circuits. Strict
adherence to the installation instructions will
ensure that the equipment continues to comply
with the safety regulations to which it was
approved.
TNV - Telephone line connector.
SELV – All other connectors.
Figure 51 SELV and TNV connectors
Connecting the Telephone Line
Connecting the telephone line directly to the
terminals on the internal communicator, or
indirectly through other apparatus, can produce
hazardous conditions on the telephone network.
Always seek advice from a competent telephone
engineer if in any doubt about connecting to these
terminals.
Example – connecting a line in the UK:
The internal communicator must be connected to
the telephone network by:
a) If the wiring is owned by British Telecom:
British Telecom.
b) If the wiring is not owned by British Telecom,
one of:
(i) British Telecom.
(ii) The authorised maintainer.
(iii) A professional Installer, after 14 days
written notice to the authorised
maintainer.
To connect the telephone line (see Figure 52):
(i) Using a two-core telephone cable, strip off
5mm and feed the cable through one of
the entries (marked "10" in Figure 2) in
the rear of the control unit. Connect the
two cores to terminals A and B on the
main PCB.
(ii) Connect the other end of the two cores to
the corresponding terminals on the BT
master box.
BT master Socket
(Exclusive Line)
5 or A
2 or B
Figure 52 Connecting the Internal Communicator
Fit ADSL Filter
If the telephone line is being shared by a
broadband service then you should fit a
broadband filter to the line. Eaton's Security
Business provides the ADSL01 filter that plugs
onto pins provided for the purpose on the main
circuit board of the control unit (see 21 in Figure
3). Figure 53 shows how to fit the filter.
1
Figure 53 Fitting the ADSL01 Filter.
Note: If you remove the ADSL01 filter then re-fit
the jumpers to the outermost pairs of pins. If you
Installation
Control unit pcb
PSTN
2
Page 27
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