Transcript INTEGRUS Tech Cable Measuring

Cable measuring example
Transmitter
20m
R3
R4
40m
Security Systems
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INTEGRUS
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Integrus Tech Cable Measuring disposal such as copying and passing on to third parties.
Step 1 Signal Delay Factor of Used Cable
Use the Signal Delay Factor
that is specified by the
manufacturer of the cable.
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Integrus Tech Cable Measuring disposal such as copying and passing on to third parties.
Step 2 Measure the Cable Lengths
20m
30m
R3=20m
R1=30m
40m
20m
R2=30+20=50m
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R4=20+40=60m
INTEGRUS
ST/SEU-CO | 16.Feb.06
| © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of
Integrus Tech Cable Measuring disposal such as copying and passing on to third parties.
Step 3 Cable lengths * Cable Delay Factor
R1=30 * 5.6 = 168ns
R3=20 * 5.6 = 112ns
(Example)
Cable Signal Delay
=
5.6 ns/m
R2= 50 * 5.6 = 280ns
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R4=60 * 5.6 = 336ns
INTEGRUS
ST/SEU-CO | 16.Feb.06
| © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of
Integrus Tech Cable Measuring disposal such as copying and passing on to third parties.
Step 4 Calculate Delay Switch Positions
5
(336 – 168) / 33 = 5.39
(336 – 112) / 33 = 6.78
7
Switch Position
=
(Max. Signal Delay – Delay Rx) / 33
2
Security Systems
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(336 – 280) / 33 = 1.69
(336 – 336) / 33 = 0
INTEGRUS
ST/SEU-CO | 16.Feb.06
| © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of
Integrus Tech Cable Measuring disposal such as copying and passing on to third parties.
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Cable measuring example
End of section
Security Systems
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INTEGRUS
ST/SEU-CO | 16.Feb.06
| © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of
Integrus Tech Cable Measuring disposal such as copying and passing on to third parties.