NTK505FBE5 is a Maintenance Interface Card (MIC) for Ciena/NORTEL OM5100 and OM5200 MIC modules, providing a dedicated maintenance interface for those platforms. The part is cataloged as NTK505FBE5 with the WMOTBL5JAB suffix in vendor listings and appears in major catalogs as a replacement MIC for the OM5100/OM5200 series. Some reseller and partner catalogs note NTK505FBE5 as a Maintenance Interface Card in the OM65XX family (RD_OM6500_MISC_COMMO), indicating cross-family applicability in certain configurations.
