The Ocean Observatories Initiative uses a reference designator code to identify a particular instrument that has been deployed as part of a site. The format of a reference designator is: ARRAY & SUBSITE-NODE-PORT-INSTRUMENT. For example:CP02PMCI-WFP01-03-CTDPFK000 is translated as: CP02PMCI: Coastal Pioneer Central Inshore Profiling Mooring WFP01: Wire Following Profiler Number 1 03: Port 3 on the WFP node CTDPFK000: Profiling Conductivity, Temperature, Depth Instrument, Series K (Sea-Bird SBE 52MP), instrument number 000