© PCE Instruments
6
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VERIFYING LINES (SWITCH TO "OFF" THEN "CONT")
1.
Dial the line to be verified.
2.
While the line is ringing, connect the RED lead to the RING SIDE of the line
and the BLACK to the TIP.
3.
In the "OFF" position, the indicator lamp will flicker "RED and GREEN" when
the test leads are connected to the subject pair.
4.
If you switch the test set to "CONT", it will terminate the call on the subject
line.
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SENDING TONE (SWITCH TO "TONE")
CAUTION: DO NOT CONNECT TO ANY ACTIVE AC CIRCUIT EXCEEDING 24V IN THIS MODE.
1.
Connect the test leads to the pair, or attach one lead to ground and one lead
to either side of the line.(See figure 4)
2.
A fast dual alternating tone or a slow dual alternating tone can be selected
from the tone selection push button.
3.
Probe the suspected wires with the amplifier probe. Reception of tone will be
strongest on the subject wire. In case of ready access to bare conductors, a
handset or headphone may be used to receive the tone.
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TESTING CONTINUITY (SWITCH TO "CONT")
CAUTION: DO NOT CONNECT TO ANY ACTIVE AC OR DC CIRCUIT IN THIS MODE.
1.
Connect the test leads to the subject pair.
2.
Use "cont." position.
3.
A bright "GREEN" light indicates continuity. The LED will not glow if the line
resistance exceeds 12kΩ.
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TESTING CONTINUITY USING TONE (SWITCH TO "TONE")
CAUTION: DO NOT CONNECT TO ANY ACTIVE AC OR DC CIRCUIT IN THIS MODE.
1.
Connect the test leads to the subject pair.
2.
Use a handset or headset at the remote end and touch the wire end(s) with
the clip lead(s).
3.
Reception of tone is an indication of continuity.
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MODULAR TESTING
1.
All above tests are available through the modular plug for line 1 only - red
and green wires.
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COAX TESTING
1.
To test unterminated coax, connect red to outer shield and black to centre
conductor or red to outer shield and black to ground.
2.
To test terminated coax, connect red to connector housing and black to
centre pin or red to connector housing and black to ground.
