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Axle Counters.
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Axle Counters – What’s in the box?
Axle counters have much more complex hardware than track circuits.
What are the parts?
How do they build up into a system?
COOKBOOK
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Axle counters at Edinburgh
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Axle counters at Poznam
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SK1
SK2
Count Heads
SK1
SK2
Thales AzLM Axle counter block diagramCount Heads
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Digital card
Analogcard
SK1
SK2
A D
Zp Detection Point EAK = Electronic Junction Box
“Yellow mushroom”EAK
Thales AzLM Axle counter block diagram
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ISDN Link
PDCUPower Data Coupling Unit
SK1
SK2 BD
EAK
A D
Thales AzLM Axle counter block diagram
Disconnection box Multicore comms cable
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ISDN Link
Serial Card
SK1
SK2
PDCU
EAK
A DBD
Serial cards
Thales AzLM Axle counter block diagram
PDF created with pdfFactory Pro trial version www.software-partners.co.uk
ISDN Link
CPU2
CPU1
SK1
SK2 BD PD
CU
EAK
A D S
Processor cards
Thales AzLM Axle counter block diagram
PDF created with pdfFactory Pro trial version www.software-partners.co.uk
ISDN Link
Parallel card
SK1
SK2
Count Heads
SK1
SK2 BD PD
CU
CPU1
CPU2
S P
EAK
A D
Parallel cards
Thales AzLM Axle counter block diagram
PDF created with pdfFactory Pro trial version www.software-partners.co.uk
ISDN Link
Signalling interlocking
system
SK1
SK2 BD PD
CU
CPU1
CPU2
S P
EAK
A D
Axle Counter Evaluator (ACE)
69v UPS
DC/DC Converters (100v)
DC/DC1
DC/DC2
Thales AzLM Axle counter block diagram
PDF created with pdfFactory Pro trial version www.software-partners.co.uk
ISDN Link
Signalling interlocking
system
SK1
SK2 BD PD
CU
CPU1
CPU2
S P
EAK
A D
Axle Counter Evaluator (ACE)
69v UPS
DC/DC1
DC/DC2
DC/DC Converters(69v/100v)
Thales AzLM Axle counter block diagram
PDF created with pdfFactory Pro trial version www.software-partners.co.uk
ISDN Link
Track section
output to Signalling
system
Axle Counter Evaluator (ACE)
69v UPS
DC/DC Converters x2
(69v/100v)
Digital card
Analogue card
EAK
(“Mushroom”)
Disconnection box
Power Data Coupling Unit
BX110
SK1
BA D D
Serial Cards
Parallel Cards
DC/DC1
DC/DC2
Data
Power
PDCU
CPU1
CPU2
S P
UPS
Count Heads
CPUCards
SK2
Thales AzLM Axle counter block diagram
Address switches in EAK
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