3 The electrical connections
3.1 Mains Unit and Controller
The mains unit 671001 or 681301 reduces
the 240 volt mains power to a safe, usable
voltage of just 14 volts. The controllable DC
voltage to run the trains comes out of the
two yellow clips on the rear of the controller
6720 or the digital controller 680801 con-
necting cable. The black and white clips on
6720 are the outputs for the switching cur-
rent to operate lights or change points and
other electrically operated accessories (i.e.
point motors).
3.2 The Connection of the Mains Unit 671001
and the Controller 6720 (Fig. 5 - 7)
If your START-SET contains a controller set:
Connect the two yellow wires from the feed
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