AzLM Axle Counter systems may be monitored by direct Ethernet connection as shown below:

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or USB connection.
No additional configuration files are required prior to installation.
Ethernet connection is the most economical, but is not possible where the Ethernet connection is already in use.
1 x S-LX may monitor 2 x Axle Counter Evaluators. (ACE) over Ethernet.

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Where the Ethernet connection is use. Follow the guidance for connection over USB. 1 x S-LX may monitor 2 1 x Axle Counter Evaluators. (ACE) over USB
In the USB Configuration, Additional ACE ACEs may be monitored through the provision of an Ethernet hub, allowed a single antenna to be used.

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by utilising both serial ports on the Internet connected S-LX compute device, or via bridging the Wireless connection through multiple S-LX devices. Contact MPEC for more information to ensure safety requirements are met.

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Note
Connection of the S-LX system is via a monitoring port. The AzLM system may remain in service during installation.

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Safety is assured by only connecting to 1 of duplicated or triplicated CPU devices found in each ACE. (2oo2 or 2oo3 safety system) (See SLX-TYP-AZLM-1)
Where Ethernet ports are already in use on all ACE CPUs, connection via USB is required, using a special “air-gapped” variant of the S-LX in order to control safety and reliability risks to a tolerable level. (See SLX-TYP-AZLM-2)
Appropriate cables shall be provided

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Sample Overlay Diagram

View file

name	SLX-TYP-AZLM-.pdf

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