This page shows (for purposes of historical reference only) an OBSOLETE early attempt at re-appropriating Unified Modeling Language (UML®) for port-based systems engineering. Please see now instead for latest Systems Modeling Language v1 (SysML®) !
Connections from the bunker vacuum port and chopper control port to the boundary are not shown, and some other vacuum and control ports are omitted. The «proposal» and «design» Comments are elicited from the actual documents for the instrument.
Note that this notation precedes the introduction of the early Systems Modeling Language v1 (SysML®) "FlowPort" (which is now achieved since SysML1.4 using FlowProperties on Block).
Such "binding" of text to Unified Modeling Language (UML®) and Systems Modeling Language v1 (SysML®) models for elicitation of model elements has since been formalised by Dr Darren as the Webel Parsing Analysis recipe.