gm 09 axle counter presentation 1-13

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

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ISDN Link

CPU2

CPU1

SK1

SK2 BD PD

CU

EAK

A D S

Processor cards

Thales AzLM Axle counter block diagram

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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

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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

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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

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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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