GAI-Tronics 028-02-3191-652 Installatie- en gebruikershandleiding - Pagina 10
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IMPORTANT: If only one cable entry is used, the black blanking plug fitted to the
second position must be left in place.
Connect the telephone line A and B to the main terminal block TB2 as shown.
The centre earth terminal is intended for connection to a local earth to provide
common mode protection from lightning transients. If this terminal is not
earthed there is an increased risk that the telephone could be damaged
by line-born transients.
Note that user safety from the telephone network is provided by isolation and
does not rely on this earth connection.
Do not fit a terminating resistor across the telephone terminals. The
system does not require a terminating resistor, fitting a resistor may
prevent the telephone from initiating a call.
Note: Conductor sizes to be 0.5mm-2.5mm
(solid cable) The terminal block can be disconnected from the circuit board
for easier installation
Cabling must not infringe European Low Voltage Directive (LVD)
2006/95/EC.
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2
(flexible cable);0.5-4.0mm
ILC-1117 Titan Illuminated Crossing Telephone
2