What is this system?

Specific Inspection Topics Plumbing Inspections
1

I ran across this yesterday and while it is not very common here I think i know what it is. For some reason I keep questioning myself and need some insight.
Home is 6 years old on public sewer system and has a walk out basement with one bathroom in the basement.
Am I looking at a sewage pump in basement pumping to a grinder pump outside and then it goes into the public sewer? The alarm system in the other pics is in case of system failure?

Alarm.pdf (206 KB)

2

Yup. They do this for long distances or when “fall” isn’t practical.

3

sure looks like a lift station from here

4

Odd since it is on the high ground.

5

The pump in the basement is lower than street elevation the the outside unit with a vent is higher than the street.
Thanks guys sometimes I can make the practice complex, just wanted tone sure what I was looking at. Appreciate the help