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BD-8 Block Detector Module
[visit Digitrax
catalogue page]
The Block Detector Module BD-8 is used to
detect block occupancy by locomotives or cars and to transmit this
information through LocoNet(TM) to other devices, e.g. CTC-board
or PC. The BD-8 uses current sensor cellules to detect block occupancy.
Locomotives will be detected because of their built-in decoder.
To decode cars you'll have to equip their axis with a 10-50kOhm
resistor.
The BD-8 is connected in series with the block that
is to be measured.
The power supply from the DCC booster is connected
to the power connectors A and B of the BD-8 module. please make
sure that both track lines are connected to insure proper operation
of the BD-8. Each block is insulated against the next blocks and
is supplied with power through one of the BD-8 measured outputs.
Finally, LocoNet(TM) is connected to the BD-8. Both
LocoNet connectors are identical.
The desired Address can be selected using the switches
1-9. Table below shows possible positions of the switches and how
the detector input will be interpreted in WinLok(TM) 2.1.
SWITCH
0:open
1:closed
987654321
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Block Detector
Input 1 |
Block Detector
Input 8 |
| 000000000 |
ser(1,1) |
ser(1,8) |
| 000000001 |
ser(1,9) |
ser(1,16) |
| 000000010 |
ser(2,1) |
ser(2,8) |
| 000000011 |
ser(2,9) |
ser(2,16) |
| 000000100 |
ser(3,1) |
ser(3,8) |
| 000000101 |
ser(3,9) |
ser(3,16) |
| 000000110 |
ser(4,1) |
ser(4,8) |
| 000000111 |
ser(4,9) |
ser(4,16) |
| ... |
... |
... |
| 111111111 |
ser(256,9) |
ser(256,16) |
We welcome comments or suggestions
from readers; please write
or call.
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