Will the placement of a MOCA filter as shown below work to effectively isolate a cable modem from MOCA traffic? The POE filter is shown in red below:
Note that this configuration does not employ a separate splitter downstream of the modem such as is shown on the product information page for WF-803M. For clarity, the configuration that uses a separate splitter is repeated here:
In other words, is "Splitter 2" shown above really necessary? Can't the modem be isolated without the splitter as shown in red in the first configuration above?
Yes, placing the MOCA filter as shown should effectively isolate the cable modem from MOCA traffic. Ensure the POE filter is properly installed to prevent any interference.