AE title
Application Entity title — DICOM identifier for a network-connected device. Used in every DICOM association handshake (C-ECHO, C-STORE, C-FIND, C-MOVE). Up to 16 characters, conventionally uppercase but case-sensitive in practice even where the spec is forgiving.
Why it matters to buyers: Case-sensitive in places the DICOM spec isn't strict. #1 cause of "works on echo, fails on store" troubleshooting calls. AE-title misconfiguration eats hours of go-live time at every install.
Why it matters to engineers: Document every AE title + IP + port when accepting a refurbished system. PACS expects matching AE title for inbound associations; mismatched AE title gets rejected at the association layer before any data flows.