DIGITUS Fibre-Optic Splice Box 1U 19" Sliding, Equipped 12x LC Duplex UPC (24 Fibres) OS2 Single-Mode, Light Grey

The DIGITUS DN-96331/9 is a 19-inch 1U sliding fibre splice box equipped with 12 LC/UPC duplex couplers and 24 coloured OS2 single-mode pigtails, built for installers terminating single-mode trunk or backbone cables in a network rack.

The patch side comes ready from the factory: the couplers sit in the front panel and the pigtails are exposed and laid into the splice cassette. On site you strip the incoming cable, fusion-splice each fibre to its pigtail and close the drawer. The steel tray slides out to the front, so you can splice comfortably and return to the cassette later without removing the box from the rack. Single-mode is the choice for long runs between buildings, across a campus or to a carrier hand-off point, and 24 fibres give twelve duplex links with room for redundancy. Because single-mode links run over longer distances, a clean, well-protected splice matters more: the cassette keeps each splice in order and covered, and the factory pigtails remove the risk of a poorly polished field connector adding loss to an already long link. Couplers, pigtails and cassette come as one equipped unit, so you avoid the usual mismatch of parts from different suppliers.

• 1x 19" 1U sliding splice box, 12x LC/UPC duplex couplers fitted
• 24 coloured OS2 pigtails, prefabricated and laid into the splice cassette(s)
• Splice cassette(s) with cassette cover
• Strain relief for the incoming cable
• M20/M25 screw fitting

• 24 fibres means 12 duplex links: two fibres per port, one transmit and one receive. A 24-fibre single-mode trunk fills the box exactly.
• UPC polish suits standard Ethernet single-mode links such as 1G LX and 10G LR transceivers with LC duplex connectors.
• Many FTTH, PON and video-over-fibre systems use APC (green) connectors. If your carrier or system specifies APC, this is the wrong version.
• No field connectorisation: the factory pigtails give consistent connector quality, and your work is limited to the splices.
• The sliding drawer needs slack on the cables behind it so the tray can move without pulling on the splices.
• At 240 mm deep it suits shallow wall cabinets as well as full-depth racks; leave space behind for the cable entry and bend radius.
• Record which trunk fibre colour lands on which front port as you splice; a correct record saves hours when a link has to be traced later.
• Single-mode connectors are less forgiving of dust than multimode. Keep the dust caps on unused ports and clean each LC end face before patching; most link problems after installation come from dirty connectors, not from the splices.

• Multimode (OM3/OM4) trunks: splicing multimode fibre to OS2 pigtails gives a failed link. Order DN-96331-4.
• APC (green, angled) patch cords or carrier hand-offs: these couplers are LC/UPC. Order DN-96331/9APC.
• SC patch cords: the front panel is LC duplex only.
• More than 24 fibres: there is no room to add couplers. Use the 48-fibre DN-96332/9.
• Splicing without a fusion splicer: tools, trunk cable and rack mounting screws are not in the list of included parts.