generated: '2026-07-20' method: searched source: https://docs.ninefives.com/attenuator/scpi/overview/ standards: - id: scpi conforms: true evidence: Device implements a SCPI (Standard Commands for Programmable Instruments) command interface (common *IDN? plus system/network/instrument commands). - id: ivi-hislip conforms: true evidence: SCPI transported over HiSLIP (High-Speed LAN Instrument Protocol) per IVI Foundation specification IVI-6.1 on port 4880. - id: scpi-raw-tcp conforms: true evidence: SCPI over raw TCP socket on port 5025 (VXI-11/Telnet-style newline-terminated text). - id: visa conforms: true evidence: Documented for use with a VISA library (e.g. PyVISA) via the HiSLIP resource string. - id: rest-json conforms: true evidence: JSON REST API on port 80; Content-Type application/json. - id: rfc9457-problem-details conforms: false evidence: Error responses are plain text, not application/problem+json. - id: oauth2 conforms: false evidence: Device API is unauthenticated; OAuth/OIDC exists only on the Shopify storefront, not the instrument API. - id: oidc conforms: true scope: storefront-only evidence: ninefives.com Shopify customer-account OpenID Connect discovery document present.