A couple of pics of the prototype Probe Zone Hub + Probe Zone Monitor... Up to 8 Probe Zone Monitors can be connected to the Probe Zone Hub via cat5 cable..
Whenever Homevision requires to know the status of say a tv( which would have a video or led probe attached to it and connected to a Probe Zone Monitor) it would inform the Hub via Port A outputs which Zone and which Probe it wishes to read the Status of...
As can be seen from the pics the 8 zone leds are red and the probe leds are green. The status OFF is green and ON is red. The probe Zone Monitor in the pics is plugged into Zone 2 and the top pic shows zone 2 probe 4 OFF and the bottom pic shows zone 2 probe 4 ON...
A total of 5 PortA outputs is required for the Hub and also 1 PortB input...I intend to use 3 of PortA outputs that I currently use for FirM IR Tx Zone selection for Zone + Probe selection as well so hopefully if all goes well I will only require 2 additional PortA outputs. Now just need to connect to Homevision and test...
Have now received the Probe Zone Hub pcbs and put a couple together. Make one small error which required one link to get the board functional. Have now installed the new Probe Zone Hub in my node 0 and connected it to Homevision for testing.
Have a look at the pics and more notes of the Hub pcb