SC/UPC Simplex Fiber Adapter, Single-Mode, Blue, Ceramic Sleeve, Flanged (FOS-SCU-S)
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This is a simplex SC/UPC fiber adapter for single-mode, the blue coupler that joins two SC/UPC connectors end to end through a panel. It's a plastic housing with integrated flanges and a snap-in body in the standard SC simplex footprint, so it drops into the SC cutout on any patch panel, LGX plate, or wall-mount enclosure without tools. The port has a ceramic alignment sleeve, and the housing is blue, which is the color code for single-mode UPC. It takes SC/UPC connectors on OS1 or OS2 single-mode fiber; a green SC/APC connector has an angled end-face and doesn't mate with it. It comes with metal clips and dust caps, it's RoHS compliant, and it's sold individually. For a plate already loaded with six of these, the FAP-SM-SC-6S; for the cords, the SCSCSM with SC on both ends, the LCSCSM for SC to an LC switch port, and the SCSTSM for SC to ST; for the pigtails behind the panel, the PGTSC6-SM, PGTSC12-SM, and PGUSC12-SM; for a wall plate, the KEYSCSM-WHI SC keystone; for the LC/APC duplex adapter in the same footprint, the FOS-LCA-DF.
Features
- Simplex SC/UPC. One SC port, single-mode, blue.
- Ceramic alignment sleeve. Low loss and low back reflection on a 9 µm core.
- SC simplex footprint. Fits the standard SC cutout in any panel, plate, or enclosure.
- Flanged, snap-in. Plastic housing with integrated mounting flanges; no tools.
- OS1 and OS2. For SC/UPC connectors; not for SC/APC.
- Metal clips and dust caps included.
- RoHS compliant.
- Sold individually.
Where It Fits
It suits a telecom room or a campus backbone where a single-mode cable is spliced to SC pigtails in the tray behind a panel and the plate has SC simplex cutouts to fill. It suits a wall-mount enclosure at a building entrance where a handful of single-mode strands land on SC and each one is patched on its own. Installers loading a blank LGX plate or a fiber distribution unit port by port use it, and so do techs replacing a worn or cracked adapter in an existing SC panel without touching the plate. An FTTH or a long-haul link terminated on SC/UPC in an equipment room is a candidate. It goes with the single-mode SC patch cords from the fiber patch cable collection, with the SC pigtails, adapter plates, and keystones from the fiber panel collection, and with the rack-mount and wall-mount enclosures. For a plate loaded with six of these, the FAP-SM-SC-6S. For the cords, the SCSCSM, and for SC to LC or ST, the LCSCSM and SCSTSM. For the pigtails, the PGTSC6-SM, PGTSC12-SM, and PGUSC12-SM. For a wall plate, the KEYSCSM-WHI. For an APC plant, the FOS-LCA-DF.
Good to Know
Blue means single-mode UPC, and the adapter will mate whatever SC connector goes into it, including a beige multimode cord, with the loss of a 50 µm core feeding a 9 µm one landing right at the panel; keep single-mode on blue adapters and multimode on beige, and let the connector color be the cue. It's UPC, with a flat end-face, for the blue SC/UPC connector on nearly every single-mode cord, pigtail, and transceiver; a green SC/APC connector has an 8° angle, and the two leave an air gap that costs a few dB and sends a reflection back up the fiber, so an APC plant needs an APC adapter. Simplex or duplex is the choice: this adapter holds one fiber, which suits single-fiber circuits, bidirectional links on BX optics, or a panel where the pairing changes, while a duplex adapter keeps a transmit-and-receive pair side by side and keeps polarity for you; if two of these make a pair, label them. The snap-in flanges are what hold it in a stamped cutout, and the metal clips in the box are for plates that take a clip rather than a flange, so check which the panel wants before you order a quantity. Clean and inspect every ferrule before it goes in, and leave the dust cap in any port without a cord, since an open single-mode port collects dust that shows up as loss. Don't look into an open port on a live link.
Specifications
| Spec | Detail |
|---|---|
| Model | FOS-SCU-S |
| Series | FOS |
| Type | Fiber optic adapter, simplex SC |
| Polish | UPC |
| Fiber Type | Single-mode, OS1 and OS2 |
| Color | Blue |
| Alignment Sleeve | Ceramic |
| Housing | Plastic, integrated flanges, snap-in |
| Footprint | SC simplex |
| Compatibility | SC/UPC connectors; not for SC/APC |
| Compliance | RoHS |
| Quantity | Sold individually, with metal clips and dust caps |