Number of peripherals a central BLE node can have

I'm using the Pioneer kit and wondering how many peripherals a central device can have. I'm pretty sure that it's only 1 connection but I haven't been able to find that in any type of documentation. I'm being pushed to show that it clearly can't handle more than a single connection so really need to find it documented somewhere. I've seen this answer here and a little confused but it seems that Dana is referring to doing a round robin and it's not necessary connected to multiple devices at once. 

(I've seen the 100 projects multiplex example as an alternative)