Issue link: https://te.mouser.com/i/1410851
Level 6: System to System—Connections from one system to another system. An excellent example of this level would be the connection between a PC and a printer. App Level 5 Is it a system level component? Is it part of the system I/O (Input/Output)? App Level 6 Does it connect two systems together? Is it a solution made up of more than one system? Does it help build the system? Fig.8 – Level 5 and 6 Connections Level 7: Building Infrastructure—Typically part of a building's permanent electrical system. This generically can be thought of as the permanent power or data system within a building. Level 8: Outside Plant—Encompasses all interconnect systems outside the building. This final level covers a very broad range of systems outside of the building that cover power, data and telecom. In the telecom world, this is often referred to as the "outside plant" with the network interface device (NID) acting as the demarcation point to the Level 7 building systems. Given the complexity of the multitude of devices that can exist in Level 8, it is conceivable that this level could be further segregated into additional levels, but this is beyond the scope of this document. App Level 7 Is it part of the building infrastructure? App Level 8 Is it part of the Voice, Data, Video, Wireless or Electrical (VDVWE) used to connect two buildings together? Fig. 9 – Level 7 and 8 Connections 9