You will use a passive concentrator if you want to divide a pulse signal input into two identical ones. We use it primarily if we need to share meter data from a third party. Normally, these are gas and water where one output from the hub is used for distribution and the other for the Enectiva system. The output can then be connected to the M-Bus (example: PadPuls) or transferred via wireless connection (example: WMBUS 169, WMBUS 868, etc …).