SBOOST User Guide
4
Version 1.4 February 2012
© Copyright 2012SPROG DCC
Strip 6-8mm of insulation from each conductor and twist the copper
cores of each conductor together
Insert the conductor marked with a white stripe in the +V terminal and
tighten the screw
Insert the other conductor in the 0V terminal and tighten the screw
SBOOST is protected against reverse polarity connection of the power
supply, but will not work unless the polarity is correct.
Connect to the Layout
Connect the SBOOST to the track using the track terminals
“Tr A” and “Tr B”
of the pluggable terminal block.
Connect to the Command Station
Connection to a SPROG II (version 2 and earlier)
The pluggable terminal block is arranged to allow a straight forward
connection to a SPROG II for both the DCC signal and to supply power to the
SPROG II (See below), see the picture below.
Connect the SBOOST DCC inputs
“In A” and “In B” to the SPROG II track
outputs.
Powering a SPROG II (all versions)
There are two considerations to be taken into account when powering an
SBOOST and a SPROG II from the same power supply.
The electrical isolation between the layout and command station (i.e. SPROG
II) will no longer be effective.
The SPROG II has a lower maximum supply voltage of 15V, compared to the
SBOOST maximum of 20V. When using an SBOOST with a supply voltage
greater than 15V special care must be taken. For SBOOST supply voltages
above 17V, a separate power source, of the correct voltage, should be used
