(E) CAUTION
Each frame must be on the same potential as all other system devices.
ALWAYS use a grounded mains connection, to prevent the device from being grounded through Ethernet or other signal connections.
The device must be connected to an additional fixed protective ground if it is conductively connected with more than 20 other devices. i.e. more than 20 copper I/O connections. For more information, please refer to the "General Safety Information for Lawo Equipment" booklet delivered with your devices.