Distribution subrack, 1RU used in Radio Systems, mounted in a rack in an Exchange or Radio Site. Front/mid or rear mounts in a 19” rack. Three x distribution cassettes (Part No: TC7004P16LCD01) are housed in a slide open tray. Each cassette is individually removable, as they are catch secured. The main tray is secured by two catches. Each cassette has 2 x MPO (key up) 8 fibre connectors at the rear side (Polarity A/C). Each of the 2 x 8 = 16 optical fibres has an appearance at the front of the cassette in 8 x LC Duplex through adaptors. The LC connectors enable singlemode patchcords (available separately) to connect to transmission equipment. Each cassette is assigned to Sector 1, 2 or 3 of the radio system. A patchcord guide bar can be attached to the front of the subrack.