The Galaxy Expand platform has no specific network or chassis configuration user interface. Instead, the platform is a specialized platform that provides power to the cards, and both ethernet and USB connections between all the cards through the chassis backplane. The cards themselves are configured through the normal process for UCX software functionality. But, with the presence of both ethernet and USB interfaces in the backplane, there are several network connectivity options for consideration as you deploy the Galaxy Expand across your network.
The Switch Fabric Card is a mandatory card in all configurations. It is only able to be installed in the slot labeled SFS (Switch Fabric Slot) in the chassis (refer to Galaxy Expand - Platform Hardware for a diagram of the chassis slots). There is no user configuration for this card; it is essentially a combination of an unmanaged ethernet switch and USB hub that:
Each Galaxy Expand chassis is equipped with two independent power supply modules, each with their own power cord. E-MetroTel recommends that each power cord be plugged into 120 VAC supplies running on different circuits to provide the highest degree of protection against minor power interruptions.
Multiple Galaxy Expand chassis can be configured at a single location to support all the telephony interfaces required for a particular customer deployment. Expansion is accomplished by interconnecting either the Ethernet ports or the USB ports, or both from the Switch Fabric Card on the main Galaxy Expand chassis to their corresponding ports on the extension chassis.
To extend the Galaxy Expand system to multiple chassis: