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The bright circles represent the contact outputs of the accessory decoder which are
turned on in order to throw the switch to the corresponding state. The dark circles correspond
to the decoder outputs, which remain turned off during operation of the switch.
For certain digital systems the bright circles are drawn in a colour or show an additional
sign, which reflects the colour or label of the key, that is to be pressed on the keyboard
or handheld of this digital system in order to activate the related contact output. If you
are familiar how to operate a certain switch with your keyboard then these additional
markings help you to map the keyboard operation to the correct configuration in the
software.
These images display only two possible situations. The decoder outputs can be configured
very flexible as required to operate the switch accordingly.
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2.5 Signals and Accessories
After completing the track diagram, the next step is to place the signals in the diagram,
as well as the accessory elements such as operating lights, uncouplers or other accessories.
The following elements are provided:
• Two, three and four aspect signals of different styles
• Push buttons, toggle switches or on-off switches to operate your accessories
Attached to the track Not attached to the track
Diagram 47: Attaching signals and accessories to the track
If you want to visualize that a signal or accessory element located in the track diagram
is associated with a piece of track on your railroad (for example a signal that controls a
track section or a push button that operates an uncoupler), you can attach this element
to a track element. For the operation of the signal or accessory element, however, it is
not important if it is attached to the track or not. The purpose of the attachment is only
to visualize the relation between the signal, or accessory element, and the corresponding
track.