C) Testing Twisted Pair Wirings - VOLTCRAFT CT-1 Bedienungsanleitung

- Short-circuit test:
After connecting the cable, the BNC-LED (3) should not be lit. If this display is lit red, the
cable has a short circuit and must be replaced. If the display does not light up, follow the
further steps.
- Continuity test:
After having performed the short-circuit test, connect the BNC terminal to the one cable end.
The BNC-LED (3) now needs to be lit red to indicate the termination (continuity). If the LED
is not lit, the line is interrupted. Replace the cable.
- Function test:
If the short circuit test and continuity test were performed successfully, now push the BNC
test button (2) and keep it pushed for the duration of the test. If the BNC-LED (3) lights up
green, the cable is OK. If the BNC-LED does not light up or if it lights up red, the cable is
defective and must be replaced.

c) testing twisted Pair Wirings

- Connect the RJ45 plugs on the cable to be measured to the multi-cable tester and the
remote unit (7).
- Switch on the multi cable tester by pushing the power switch (6). The flashing power LED (4)
will indicate readiness for operation.
- Once the multi-cable meter is switched on, the device will scan the individual lines of the
cable in sequence. If the cable is OK, the LEDs (1&2, 3&6, 4&5, 7&8) of the remote unit
(7) will light up green in sequence. If any LED is green first and then red or off, the cable is
defective.
- In the case of shielded cables, push ground switch (5) to test the shielding. If the shielding
is OK, all LEDs on the remote unit (7) will light up in sequence (including the GND LED),
except for the LED for pair 3&6. If the GND-LED is green first and then turns red or goes off,
the cable is defective.
Observe that the ground switch (5) must be off when testing an unshielded
cable.
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