Lenz Elektronik Digital Plus Manual page 6

Silver Direct Locomotive decoder
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There are two wiring options for installing the function D to the solder pads on the
underside of the decoder depending on how the locomotive is constructed. The
function could be connected to the decoder's floating positive +common ( Pin 7) or
connected to one rail as a common. A mixture of both options is possible in the same
locomotive.
1
Function D with
rail Common
If the bulbs are floating (isolated against wheel pick up and chassis) and connected
according to above figure, they will shine brighter compared to using the rail as a
common.
After installation of the decoder, place the locomotive (without its shell) on the
programming track and read back the locomotive's address from the decoder. If the
decoder is properly installed, you will be able to read back the factory pre-set
address 03. Remove the locomotive from the track, and if necessary correct any
wiring errors.
Configuring the Silver Decoder
The locomotive address, acceleration and deceleration delay, and all other features of
the locomotive decoder can be changed as often as desired by configuring special
features within the decoder. The features are "stored" permanently in special locations
even when the operational voltage is switched off. These locations are called
"configuration variables" or simply "CV". The values are configured electronically,
which means that it is not necessary to open the locomotive again after the decoder
has been installed.
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Function output C
Left rail pickup
Motor connection 2
Function output A
(front headlight)
Function positive common
Right rail pickup
F
1
Function D with Dec oder + Common
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F