tams elektronik B-4 User Manual page 8

English
Front side of the B-4
1 LED
2 7- segment display
(item no. 40-19417)
Data formats and ports
The B-4 is a multi protocol booster and capable of amplifying data sent
in the Motorola or the DCC format. It transmits control commands in
mfx-format as well, but no mfx feedback signals.
It can be connected either to a DCC-conforming booster port or to the
rail output of the control unit.
RailCom
The booster B-4 can provide the so-called RailCom-cutout needed to
transfer RailCom-feedback data in RailCom-monitored sections.
When using the B-4 with control units sending a DCC signal but not
compatible to RailCom, providing the RailCom-cutout can cause
malfunction. Some older DCC vehicle decoders and current decoders
(especially of US American manufacturers) which are not designed for
use with Railcom, do not react to driving commands properly with the
RailCom cutout activated. With sound decoders not compatible to
RailCom interferences in the sound playback can occur.
Thus with the B-4 it is possible to switch RailCom on or off (at delivery
RailCom is switched on). With pure Motorola control units, malfunction
due to sending the RailCom-cutout is impossible on principle.
Page 8
Booster B-4