Equip LC to SC OM3 Duplex Fiber Optic Patch Cable — 1 m
OM3 MultimodeLC ↔ SC duplex1 m · LSZHAqua jacket
The Equip 255311 is a 1 m duplex OM3 multimode fiber optic patch cable with LC connectors on one end and SC on the other, built on 50/125 µm fiber with ceramic ferrules and an LSZH jacket — for connecting an LC-port transceiver or switch to SC patch panels, wall outlets or media converters.
OM3 is laser-optimised 50/125 µm multimode fiber (aqua) — the standard choice for 10 Gigabit short-reach links with 850 nm SR transceivers inside racks, server rooms and between nearby cabinets. Manufacturer-published performance: Supports 10G Ethernet.
Connectors: LC (small form factor — the connector of SFP/SFP+ and most duplex transceivers) and SC (square push-pull — common on media converters, older switches and SC panels/outlets).
Before you order: Multimode 50/125 µm only — match the transceiver type (SR / multimode) and the fiber grade already installed. Check that the ports are LC and SC.
What's in the Box
- Equip LC/SC duplex OM3 fiber optic patch cable, 1 m (1 piece)
- Individual measurement protocol (test report) for the cable
What It Means in Practice
- Duplex = two fibers in one cable: one transmits, one receives. One cable connects one duplex port to one duplex port.
- 1 m right for patching inside one rack.
- Hybrid cable: it adapts directly between LC and SC ports, so you do not need extra adapters (each extra mated connection adds loss).
- LSZH jacket: low smoke, zero halogen — the usual requirement for cabling in offices, server rooms and public buildings.
- Each cable ships with its own measurement protocol — useful for documentation and acceptance tests.
What Will Not Work
- Single-mode optics (LR/LX, 1310/1550 nm) or single-mode (yellow) infrastructure — multimode and single-mode fiber cannot be mixed.
- 62.5/125 µm OM1 links — the core sizes differ and the joint causes high loss.
- Copper RJ45 ports — fiber needs an optical transceiver (SFP module) or a fiber port on the device.
- Single-fiber BiDi transceivers or simplex-only ports — this is a duplex (two-fiber) cable.
- ST ports — this cable is LC to SC; check the port at both ends before ordering.
Key Features
50/125 µm OM3
OM3 is laser-optimised 50/125 µm multimode fiber (aqua) — the standard choice for 10 Gigabit short-reach links with 850 nm SR transceivers inside racks, server rooms and between nearby cabinets..
Ceramic ferrules
Ceramic ferrules keep the fiber precisely aligned for consistent, low-loss mating — the standard for quality patch cords.
LSZH jacket
Low smoke, zero halogen sheath for indoor installations where fire-safety rules apply.
Tested, with report
Each cable is measured and supplied with its protocol, so you can document the link from day one.
Technical Specifications
| Identification |
| Part Number |
255311 |
| EAN / GTIN |
4015867162378 |
| Brand |
Equip |
| Optical |
| Fiber mode |
Multimode |
| Fiber class |
OM3 |
| Core / cladding |
50/125 µm |
| Fibers |
Duplex (2 fibers) |
| Cable specification |
I-VH 2 × 1G |
| Transmission performance |
Supports 10G Ethernet |
| Connectors |
| Connector side A |
LC male |
| Connector side B |
SC male |
| Ferrule |
Ceramic |
| Physical |
| Length |
1 m |
| Jacket material |
LSZH (low smoke, zero halogen) |
| Jacket colour |
Aqua |
| Dimensions (W x D x L) |
26 x 56.65 x 1000 mm |
| Weight |
22 g |
| Performance |
| Insertion loss |
Not published by the manufacturer |
| Test report |
Measurement protocol supplied with each cable |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Manufacturer does not publish a warranty term — claims handled through Singular |
Frequently Asked Questions
Can I use it with a single-mode (LR/LX) SFP module?
No. The fiber type of the cable must match the transceiver: this multimode cable needs multimode optics such as SR (850 nm).
The link does not come up — what should I check?
First polarity: in a duplex link the transmit fiber at one end must reach the receive port at the other. Then confirm both transceivers are the same type and that the connector end faces are clean — dust is the most common cause of a weak or dead fiber link.
Is 1 m the right length?
Measure the real route including slack for cable management. Too short strains the connectors; extra fiber should be coiled loosely, never kinked or pulled tight. We can source other lengths of the same cable — just ask.
Singular Expert Insight · Buyer's Guide
Most fiber problems we see are not the cable but a mismatch: single-mode cable on multimode optics, an LC cable where the panel is SC, or OM1 mixed into a 50 µm link. Read the transceiver label (SR = multimode, LR/LX = single-mode) and look at the port shape at both ends before you order. If you are still choosing hardware, see our
switches with SFP ports.
✓ Buy it if you need a 1 m OM3 duplex link between LC and SC ports with multimode optics.
✕ Skip it if your transceivers are single-mode (LR/LX), your ports are not LC/SC, or you need a single-fiber BiDi link.
→ Also consider the same cable in another length, or an OS2 single-mode cable for longer runs with LR/LX optics.
Not sure which fiber you have? Send us the model of your switch, transceiver or patch panel and we will check compatibility before you order.