Lenz GOLD Decoder Information Seite 37

5.11 The S.U.S.I. interface
The sound and function interface concept for locomotive decoders was devised in 2002 in
cooperation with the company DIETZ. The purpose of the interface is to facilitate the particularly
easy connection of sound and other function modules to locomotive decoders.
The S.U.S.I. module receives information about the running notch, the status of the functions etc.
via the interface and reacts accordingly, for example the sound of a bell is played or the locomotive
sound changes.
The quality of these sound effects depends solely on the S.U.S.I. module and not on the locomotive
decoder!
5.11.1 Connecting a S.U.S.I. module
You may connect all sound and/or function modules to the S.U.S.I. interface which correspond to
the interface's specification. A 4-pin connector on top of the decoder serves for the connection of a
sound or function module (See Fig. 3, Page 6). The soldering surfaces are assigned in accordance
with the S.U.S.I. Interface specification. The cable colours given correspond to the
recommendations of this specification. Carefully insert the plug of your S.U.S.I. module into the
connector on the decoder. The plug can only be inserted in one direction.
5.11.2 Setting (programming) the S.U.S.I. module
Like locomotive decoders, there are also various ways of setting S.U.S.I. modules. These settings
are also saved in configuration variables (CVs). If you wish to change these CVs, proceed as if you
wanted to change the CVs of the locomotive decoder. The S.U.S.I. module is programmed "through
the decoder" as it were. Based on the number of the CV, the locomotive decoder will know whether
the S.U.S.I. module is to be addressed and will transmit the programming commands via the
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