Murr Elektronik Cube67+ - 3.2 Internal system connection; ATTENTION: Inverting Cube67+ I;O modules in a system can result in injury or serious damage to man and;or material.

Manual Cube67+ | System Manual
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3.2 Internal system connection
Use only our pre-wired connectors for the internal system connection.
ATTENTION:
Inverting Cube67+ I/O modules in a system can result in injury or serious damage to
man and/or material.
When comparing planned and actual configuration, the Cube67+ system is basically
not able to distinguish between identical or replaceable modules. Therefore it is im-
portant, that Cube67+ system cables and Cube67+ I/O modules are clearly labeled.