Most SBS4DCC light boards feature through-hole solder points to connect a DCC decoder to control the primary lighting circuit and auxilliary function pads.  These connection points are labeled Red, Blk, Blu, F1, F2, F3, and F4 respectively.

In all instances, the color code follows the NMRA convention where Red, Blk, and Blu refer to track power and function common.

F1 is always the primary lighting circuit.

F2, F3, and F4 are the auxilliary function pads.

SBS4DCC boards can be ordered with many power options including DCC-Friendly, DCC Decoder Ready, and DCC Decoder Installed.  It may be necessary to remove the bridge rectifier if the board was not ordered as DCC Decoder-Ready.

In most instances, it is possible to use the on-board anti-flicker caps to provide the same performance with the DCC decoder but this typically requires a minor modification to the board.  This is necessary because the board was designed before the introduction of decoders with on-board keep-alive circuits.

It is also possible to utilize the on-board keep-alive features of these new decoders by making the same board modification and installing the keep-alive device per the manufacturers directions.

NOTE: These modification are done by SBS4DCC when the board is ordered DCC Decoder Installed.