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IT1000 Basic Rate ISDN Tester
3 USING THE IT1000
In order to make best use of your tester it is important that you take the time to read this section of
this guide carefully. It explains the basic operating modes of the IT1000 and will help in your
understanding of how to configure the unit for different applications.
3.1 Operation Modes
The IT1000 can be used in two distinct modes :
1) Stand Alone Mode. As a stand alone tester requiring nothing else to perform a range of pre-
configured tests.
2) Explorer Mode. Together with a personal computer to perform more detailed investigations
and / or to configure the test parameters to be used in stand alone mode.
3.2 Stand Alone Mode
3.2.1
Turning the unit on
Press the button marked ON (auto-off) and hold it in for 2 seconds. Initially, all the indicators will
flash as a lamp test, ensure that there are no indicators which fail to light.
The PASS/FAIL and B2 indicators will then flash to indicate that a self-test is in operation and then
all the indicators except 'Power' will extinguish.
The now ready to use.
3.2.2
Connecting the circuit under test
Using the supplied ISDN lead, plug one end into the connector marked ISDN BRI and the other end
into an ISDN Network Terminator or any other RJ45 connector which carries an ISDN line. If a
correctly presented ISDN circuit is present, the Line indicator will come on to show that the unit is
able to communicate at Layer 1 to the local exchange.
3.2.3
Selecting the test
In this mode, the B1, B2 and Pass / Fail indicators have a special function. They enable the required
test to be selected by repeatedly pressing the MODE / RUN button. Each press of the button selects
a different test.
The required test is selected by matching the pattern of the indicators with the legend on the unit's
case. For example, to perform a voice calling test would require that the B1 and B2 indicators are
ON and the Pass / Fail Indicator is OFF.
SALES: 0870 90 10 750
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