Cisco StackPower, how to connect stack power cable?

Question

Cisco

Good afternoon...
There are two Ciscos in the stack - cisco 3750x
Each has ONE PSU in slot A
How to connect a stack power cable? (top-top, top-bottom) - this is if you look at the connectors
Can only one cable be used? (BP still one at a time)

Answer 1

Hardware installation guide
You can connect top-to-top with one cable, although there should be two cables in the kit (one for each switch)

Answer 2

Two cables are included, one is connected, (top-top)
I did not find in the docks how to connect the cable if one PSU is installed in the switches