I am planning to use the Data Bus Hub to connect four keypads. Want to confirm that Cat5/6 from data hub to keypad is adequate because some other diagrams indicate min 24awg is required. Also I am not clear what to do with JP1, JP2, and JP3. The datahub instructions say to insert terminating RJ45 into first unused port (no questions here) and to terminate the control at JP3? From what I could gather I need to have a jumper across JP3 because I am only using one data home run. If I were using two data home runs I would leave JP3 alone and use jumper across JP1 on the last device of run 1 and across JP2 on the last device of run 2. Thank you for your help.