[Addition KEY-RKPZ two-way radio keypad to i-on40H]

Thank you

 

Do i need to use a separate base station for each radio keypad as above?

[Addition KEY-RKPZ two-way radio keypad to i-on40H]

Good morning,

 

I have installed the system myself with 6 x radio pir, door contact for entry, radio ext sounder, radio two way keypad, Wi-Fi unit.
Steep learning curve but all working great with proximity tags. i would like to install an addition radio two way keypad. I can get
it to function on the same bus as the 1st but would like it to be separate so that if there is a fault or low battery i know what unts is at fault.
I have installed a base station for the keypad and it stated i can have 4No keypad off this unit? or do i need to install a base station for each keypad?
if not how do i set the radio frequency and that on the 2nd keypad so they are on the same and different to the 1st keypad. then how to configure?
appreciate your time.