Fluke PRO3000 - Advanced Application: Talk Battery; Setting Up Talk Battery

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PRO3000 Toner and Probe Users Guide
In-House Communications (Talk Battery)
Two PRO3000 toners can power two telephone test sets on a pair of
dry wires (see Figure 5). This lets two people communicate on up to
1 mile (1.6 km) or more of a dry wire pair.
To use the talk battery:
1 Connect the two toners in series by clipping the red lead of one
of the toners to the black lead of the other toner.
2 Connect one of the toner's free leads to one of the wires of the
pair you want to talk over.
3 Connect the other toner's free lead to one of the leads of your
test telephone.
4 Connect the test telephone's free lead to the other wire of the
pair you want to talk over.
5 Put the slide switch on both toners into the CONT position.
6 Have the person at the other end of the wire pair connect his test
telephone to the wire pair.
7 Put both test telephones in talk mode then begin your
conversation.