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5. Connecting the B-3
Follow the connections diagrams fig. 1 and fig. 2.
Connecting the central unit
It is possible to connect the booster to
§
the interface of the central unit for a Märklin**-compatible booster
(with a 5-pin connecting cable) or
§
the DCC booster interface of the central unit (with a 3-pin
connecting cable).
The enclosed cable is intended for connecting the booster to the interface
of a Märklin**-compatible booster. It can be used for connecting the
booster to the central unit MasterControl. The booster configuration of
the MasterControl has to be set to „short circuit polarity: positive (MM)"
(= factory setting).
The booster B-3 has two Märklin**-booster ports and two DCC-booster
ports to be used at choice. Please make sure that the pin assignment of
the central unit´s booster interface corresponds to that of the booster
port.
Pin assignment of the booster ports
1 2 3 4 5
Märklin** booster port:
1
short circuit warning wire
2
earth
3
track voltage + 19 V
4
booster „on / off"
5
data
Page 18
1 2 3
1 2 3 4 5
3 2 1
DCC booster port:
1
short circuit warning wire
2
data (-)
3
data (+)
B-3
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