SC Simplex Single-Mode Fiber Keystone Jack, White (KEYSCSM-WHI)

This is a simplex SC keystone jack for single-mode fiber, in white. It's a snap-in keystone insert with an SC coupler in it: the SC connector on the horizontal fiber pushes into the back, the SC patch cord pushes into the front, and the plate or panel looks like every other keystone outlet. It's one fiber per jack, so a duplex link takes two of them side by side. It's specified for OS1 and OS2 9/125 µm single-mode, with a typical insertion loss under 0.3 dB. The housing is UL 94 V-0 PBT with a phosphor bronze sleeve and a stainless steel clip, rated for 500 matings and 10 kgf of pull, and it comes with a dust cap. It snaps into a keystone opening in a wall plate, a surface-mount box, or a blank keystone panel. It's sold individually. For the SC single-mode cords that plug into it, the SCSCSM and LCSCSM; for a duplex LC jack instead, the KEYLCSM-WHI; for splicing a 12-fiber cable out to SC behind the plate, the PGTSC12-SM pigtail.

Features

• Simplex SC, single-mode. One fiber per jack; OS1 and OS2 9/125 µm.
• Under 0.3 dB insertion loss. Typical.
• Push-pull coupler. Phosphor bronze sleeve, stainless steel clip.
• 500 mating cycles minimum. 10 kgf tensile.
• Keystone snap-in. Tool-free; wall plates, surface-mount boxes, and blank keystone panels.
• UL 94 V-0 housing and insert. PBT housing, ABS insert.
• −20 to 70 °C operating. −40 to 80 °C storage.
• Dust cap included.
• White.
• Sold individually.

Where It Fits

It suits a single-mode drop that has to come out at a wall plate, such as a fiber-to-the-premises handoff in an apartment or a small office where the service provider's fiber ends in an SC and the ONT sits on the wall below the plate. It suits a campus or a metro link where the single-mode pair lands at a keystone outlet in an equipment room beside the copper jacks. Installers who terminate single-mode at a keystone plate rather than a fiber enclosure use it, and so do ISPs and integrators who want the customer-facing end of a fiber drop to look like a phone or data outlet. A blank keystone panel in a small closet that mixes a pair of SC single-mode ports with the copper is a candidate. It goes with the single-mode bulk fiber, the SC connectors or pigtails for the horizontal side, and the SC cords from the fiber collections, and with the keystone wall plates and panels from the copper collection. For the SC-to-SC cord, the SCSCSM, and for SC to an LC switch or ONT port, the LCSCSM. For a duplex LC outlet instead, the KEYLCSM-WHI. For splicing a 12-fiber cable out to SC, the PGTSC12-SM pigtail.

Good to Know

Check the polish before you buy: the page doesn't name one, and while single-mode SC on a LAN is almost always UPC with blue connectors, a fiber-to-the-home drop is very often SC/APC with green ones. An APC ferrule in a coupler meant for UPC gives an air gap and a loss spike, and the two don't mix, so if the provider's fiber is green, confirm with us first. It's simplex, so a transmit-and-receive pair is two jacks; put them side by side and label which is which, because a simplex SC has no duplex clip to keep polarity for you. The jack is a passive coupler, so it adds a mated pair to the link, roughly 0.3 dB, which the loss budget has to carry along with the connectors at the far end; on a long single-mode link that's usually small change, but it's worth noting on the as-built. Clean and inspect both the cord's ferrule and the ferrule behind the plate before mating, and keep the dust cap in any jack without a cord in it; a 9 µm core is far less forgiving of a speck of dust than a multimode one. The fiber behind the plate needs room to bend: a standard single-gang box is shallow, so use a deep box or a surface-mount box and coil the slack in a loop no tighter than the fiber's bend radius before it enters the jack. The tensile rating is 10 kgf, which is more than enough for a patch cord but not for a cable hanging on the jack, so strain-relieve the horizontal fiber in the box. An SC is wider than an LC, so a plate full of simplex SC jacks gets fewer fibers per gang than the duplex LC jack would; where port count matters, the KEYLCSM-WHI puts a pair in one opening.

Specifications

Usually ships the same day.