One of the main advantages of my new TiVo equipment is that is provides a whole house solution via the coaxial cable without requiring me to re-wire to my home with Cat 6 ethernet cable. So, having TiVo Mini's connected over coax via Roamio Pro's built-in MoCA network is of great value to me. However, there were no configuration diagrams for how to connect this (mainstream?) configuration. Also, there were no instructions as to how to connect a Tuning Adaptor coexisting with a MoCA network. An additional (2-GHz rated) splitter is required. If you use a 1-GHz splitter your signal levels could be severely attenuated (it will depend on the characteristics of the splitter).
Here's my working configuration (see attached pdf ... a picture is worth a thousand words). I hope this helps you get your set up working in less time than it took me! You may have a different configuration, so you may need to alter to fit your specific situation.
My configuration includes the following elements:
Cable Feed with MoCA POE filter
Cable Modem for internet
TiVo Roamio Pro configured to provide MoCA network over coax
TiVo Mini connected via a MoCA network over coax
Tuning Adaptor (TA)
One 2-way (1 GHz) splitter for CATV and cable modem
One 2-way (2 GHz) splitter (connects TA, Roamio, and Mini's via coax)
One 3-way (2 GHz) splitter for up to 3 Mini's via coax MoCA network
An additional MoCA POE filter to optimize MoCA network
My configuration has the following benefits:
1) Provides highest signal strength and SNR to CATV signals and Cable Internet Modem.
2) Isolates and optimizes MoCA network. If there are issues with your cable provider, this isolation makes trouble shooting (and potential finger pointing) much easier.