Validating Telephone Service And Polarity - Fluke IT200 User Manual

Validating Telephone Service and
Polarity
The toner detects telephone service and circuit polarity on
its banana, RJ11, and RJ45 jacks.
This test requires power from the Central Office.
1. Turn off the toner.
2. Connect the toner to the circuit as shown in Figure 3.
Disconnect unused test leads and connectors from
the toner.
3. Turn the toner's rotary switch to SERVICE.
4. The LEDs indicate telephone service and polarity as
shown in Figure 3.
The toner checks for continuity between the red and
black test leads and across the middle pair of the
RJ45/RJ11 jack (line 1).
Note

Validating Telephone Service and Polarity

Telephone
punch-down
block
Green: + polarity
(red connected to tip)
Red: - polarity
(red connected to ring)
Yellow: ringing voltage
SERVICE
Figure 3. Validating Telephone Service and Polarity
RJ45
RJ11
Line 1
Line 2
Continuity or
non-telephone
voltage
No voltage
No continuity
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