LC/APC to SC/APC Fiber Patch Cable - Single Mode OS2 9/125μm Duplex

In a PON or FTTH network, nearly everything is APC: the OLT ports, the splitters, the distribution panels, the wall outlets, and the ONTs are all green connectors, because a reflection-sensitive system can't tolerate light bouncing back toward the laser. But not all of it is the same size. The outside plant and the customer side are mostly SC/APC, while newer OLT line cards, high-density panels, and SFP-based gear are LC/APC. This cord has one of each, so an LC/APC OLT or panel can connect to an SC/APC splitter, outlet, or frame without a hybrid adapter in the path, and without giving up the low back reflection that APC exists to provide.

It's OS2 single-mode fiber, 9/125 µm, in a duplex configuration for a transmit and receive pair. Each cord is tested and the end-faces are checked by interferometer before it ships.

Features

• LC/APC to SC/APC. Snap-in LC on one end, push-pull SC on the other, both green 8° angle-polished APC.
• OS2 single-mode, 9/125 µm. For 1310 and 1550 nm links, from a head-end jumper to a campus or metro span.
• Duplex. Two fibers for a matched transmit and receive pair, wired A-to-B.
• Low insertion loss. 0.15 dB typical and 0.30 dB maximum per connector.
• High return loss. 60 dB or better at both ends, about ten times less reflected light than a UPC connector.
• Ceramic ferrules, 1.25 mm on the LC end and 2.5 mm on the SC end, checked by 3D interferometry for end-face geometry and angle.
• Tool-free on both ends. The LC latches, the SC pushes in and pulls out; neither needs a twist.
• UL Listed for the US and Canada, and RoHS compliant.
• Sixteen lengths from 1 to 40 m.

Where It Fits

It suits patching an LC/APC OLT line card to an SC/APC splitter tray or distribution frame, connecting SC/APC outside-plant panels to LC/APC equipment in an FTTH head-end or MDU, CATV and RF-over-fiber headends with mixed connector sizes, DWDM and CWDM links where one end is SC and the other LC, and any single-mode link between a green LC port and a green SC port.

Good to Know

Both ends are APC, so both of your ports need to be green. Almost every switch, SFP, and enterprise patch panel is blue UPC, and forcing an angled APC ferrule against a flat UPC one leaves an air gap that costs several dB and can scratch the port. If the LC side is blue, you want the LC/UPC to SC/APC cord instead; if the SC side is blue, the SC/UPC to SC/APC cord; and if both ends are LC, the LC/APC to LC/APC cord. APC ferrules are keyed so the angles line up when mated; if a connector won't seat, don't force it, check the key. Keep dust caps on until the moment you plug in, and clean both the connector and the port with a one-click cleaner before mating, 1.25 mm for the LC end and 2.5 mm for the SC end; a fingerprint on a single-mode ferrule costs more than the whole cord's loss budget, and on an APC end it also spoils the return loss the connector exists to provide. For runs longer than 40 m, or where the cord will be pulled through a tray or conduit, ask about a 3.0 mm jacket or an OFNR-rated cable.

Specifications