Flowire clusters

Two Flowire clusters, each with one central FCDC1 Flowire Unit and one central Power Supply Unit (PSU). Cross talk must be prevented between the clusters.

When there are several Flowire clusters in an installation, the different clusters must be separated to avoid crosstalk between the clusters. When crosstalk is present, a Flowire unit on one cluster might "jump over" to the other cluster, causing errors in the communication.

Cluster separation can be achieved in two ways:

• Separation by NMK Password (recommended)
• Physical separation

Separation by NMK Password

The recommended way is to separate clusters by using different NMK Passwords. When implementing different NMK Passwords, it will not be possible for a Flowire unit to "jump" to another cluster with a different password.

All Flowires within the same cluster must have same password in order to communicate with each other.

Setting the NMK Password

The NMK Password is set by logging on to the Flowire unit using a web browser. The Flowire units are automatically assigned an IP address from the network if there is a DHCP server present. You can use the IMT tool to discover the IP addresses of the Flowire units.

If there is no DHCP server on the network, the Flowire units will have a static IP address 169.254.1.10. In order to access the web interface you need to isolate the Flowire units one by one, and access it via 169.254.1.10. It is good practice to change the static IP to something unique at the same time, for easier maintenance in the future.

Default NMK Password: HomePlugAV0123

Physical separation

Both the Flowire units, the power cable, and the link cable must have have a certain distance between them. Minimum distance is 5 cm. Crosstalk might appear if for instance the cables for two different clusters are running on each side of a wall.