Compatibility of Z-Distribution Units Across Different Generations
The two core components of the Z-TV systems used to distribute television signals are Z-Distribution units and Z-Baluns. There are different generations of Z-Band video distribution units and Z-Band baluns over past several years. If you are working with a system which involves a mix of various generations of the video distribution units and the baluns, it is very critical to understand the underlying compatibility among these devices. This is also important if you are planning to add/upgrade your existing Z-Band video distribution hubs with our newer hubs. Please refer to Balun Compatibility article to learn more about using different iterations of Z-Band Baluns with the Z-Distribution Units.
The following set of pictures illustrate the compatibility of the video hubs and interfacing one generation of video hubs with another. 
Our latest Z-Distribution hub, ZHC can be cascaded to any other generation to pass RF downstream except for the original GigaBUD
Z-Distribution Reg video hubs can be cascaded with all generations of Z-Distribution units except for the original GigaBUD
GigaBUD 1000 can be cascaded off to any other generation of Z-Distribution units except for the original GigaBUD
GigaBUD HD860s can be cascaded off to any other generation of Z-Distribution units except for the original GigaBUD
Our original GigaBUD is not compatible with the newer generation of Z-Distribution units and can only be cascaded to other original GigaBUDs**
*If you have a system which utilizes the RF upstream or if you are planning to add this option to your system, please contact Z-Band customer support to discuss your options of utilizing the return path with one of our engineers.
**The original GigaBUDs are EOL. Please check with your territory sales manager for upgrade options.
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