The Sol system has the most built-up infrastructure in human space, due to it holding humanity's birthplace. As such, it has four separate SLE systems, to manage the FTL traffic to and from the system.
Pluto
The first SLE was constructed into Pluto, built and operated jointly by the AU & GDW.
Orcus
The second SLE constructed, this structure set into the dwarf planet Orcus, which has been moved to an orbit opposite of Pluto, and is owned and operated by the Soyuz.
Zenith
‘Zenith’ Sol - First SLE in ‘high’ inclination ‘above’ the solar system, this AU owned structure has a large solar sail surrounding it, otherwise known as a statite, keeping it in place above Sol.
Nadir
A near copy of it’s ‘higher’ counterpart, this SLE is the newest and was constructed by the HFR, though it is currently controlled by the AU