Velleman VTTEST11 Manual Del Usuario página 4

5. Operation
5.1 RJ12 Network / Phone Connector Test
The Tone Generator can be used to determine the polarity of a phone line or
network connection.
1. Set the tone generator's mode switch to 'Off'.
2. Insert the phone line connector in the phone / network socket and
connect the red and black connectors to the wires to be connected.
3. Upon connection of the red and black connectors, the signal indicator
LED should light up. Green means the polarity is correct (black is "+"
and red is "-"). Red means the polarity is inversed (black is "-" and red
is "+").
If the LED does not light up, either the connections are not established
correctly or the socket is not connected.
If the LED flashes green and red alternately, it means there is an incoming
phone call (ring signal).
5.2 Cable Test
The Tone Generator can be used to determine whether or not a cable is
interrupted (test per wire couple).
1. Set the tone generator's mode switch to 'Cont'.
2. Create a short circuit between the wires to be tested at the far end of
the cable.
3. Connect the red and black connectors to the wires to be tested.
4. If the signal indicator LED lights up (green), the 2 tested wires are
uninterrupted. If the LED does not light up, either one or both of the
wires are broken or the wrong wires were connected or short circuited.
Beware: make sure the wire couple under test is not in contact with any
other electrified or earthed object; this may cause an incorrect test result.
5.3 Cable Detection / Test
Use both the tone generator and the cable tracer to verify where a cable is
going, if it is uninterrupted or not and where the interruption is located if it
is indeed interrupted
1. Set the tone generator's mode switch to 'Tone'. Select the tone you
want to hear (single or dual tone) with the audio signal switch.
2. At one end of the cable / wires to be tested, connect the red clip to
any wire or one specific wire you want to test. Connect the black clip
to the ground wire or, when you cannot find it, one of the other wires.
The signal indicator LED should be red. When it is not lit, the test wire
V. 02 – 09/03/2015
VTTEST11
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