Fiber Optic Patch Cords
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LC to LC Duplex OS2 Bend-Insensitive Patch Cord G.657.A1
PRODUCT OVERVIEW
The LC UPC to LC UPC Duplex OS2 Single Mode Fiber Patch Cable features
high-precision LC connectors on both ends with UPC polish, designed for
high-speed optical network connectivity in telecommunications and data
center environments. Constructed with bend-insensitive G.657.A1 fiber
(fully compatible with G. 652.D), it offers low insertion loss,
high return loss, and excellent long-term durability.
KEY FEATURES
Low Insertion Loss: Ceramic ferrule ensures insertion loss ≤ 0.3dB.
Bend-Insensitive Fiber: G.657.A1 fiber enables tight bend radii for neat management.
Flame-Retardant Jacket: Riser (OFNR) jacket rating for safe indoor deployment.
High Reliability: Standardized durability exceeding 1000 mating cycles.
Duplex LC to LC OS2 Bend-Insensitive Fiber Patch Cord
A duplex LC-to-LC assembly on OS2 single-mode bend-insensitive fibre. The bend-insensitive profile is what makes this cord worth specifying: standard single-mode fibre loses light sharply below a 30 mm bend radius, while the bend-insensitive grade holds its loss down to roughly 10 mm, which removes the most common cause of unexplained link failures in dense racks.
Construction & Materials
Two OS2 9/125 µm bend-insensitive fibres run in a zip-cord jacket and terminate in 1.25 mm LC/UPC ferrules. The fibre meets the G.657.A2 bend specification, so it can be routed through tight cabinet corners, coiled in a small splice tray, or dressed behind a deep patch panel without added attenuation. The duplex clip fixes the pair at the 6.25 mm transceiver pitch.
Key Features
- G.657.A2 bend-insensitive fibre holds loss down to a 10 mm bend radius
- Suited to long-reach 10G/40G/100G single-mode links and PON routes
- Low-loss LC/UPC ferrules with a typical IL of ≤0.15 dB
- 100% factory end-face inspection and IL/RL test report supplied with every batch
- Custom lengths, breakout counts, jacket colour and OEM printing available
Typical Applications
- Data centre cross-connects and top-of-rack patching
- Telecom central office and ODF termination
- FTTx access networks and subscriber drop panels
- Industrial and campus backbone cabling where bend loss matters
Specifications
- Insertion loss: ≤0.30 dB (typical), ≤0.50 dB (max) for multimode assemblies
- Return loss: ≥50 dB (UPC), ≥60 dB (APC)
- Operating temperature: −40 °C to +75 °C
- Durability: ≥500 mating cycles to IEC 61300-3-2
Selection Notes
Choose bend-insensitive fibre for any run that has to turn a tight corner, and especially for cabinets that are patched and re-patched often — the fibres that fail in service are almost always the ones bent beyond their limit during a routine change. Note that bend-insensitive fibre is backward compatible with standard G.652.D, so it can be mixed into an existing single-mode link without penalty. For PON deployments, confirm the split ratio and total link budget before fixing the cord length.
FAQ
Can you supply this assembly in custom lengths and colours? Yes. Huifiber builds patch cords to order in any length from 0.5 m to 50 m, with a choice of jacket colour, boot type and printing. Send us the connector pair, fiber type and length and we will confirm the price within 48 hours.
Do you provide test reports? Yes. Every batch ships with insertion loss and return loss test data, and we can supply an interferometric end-face report for single-mode assemblies on request.
What is the minimum order quantity? Standard configurations ship from 100 pieces. Mixed-model orders can be combined to reach the MOQ.
Technical Specifications
| Parameter | Specification |
|---|---|
| Connector A | LC UPC Duplex |
| Connector B | LC UPC Duplex |
| Fiber Count | 2 Cores (Duplex) |
| Fiber Grade | G.657.A1 (Compatible with G.652.D) |
| Fiber Type | OS2 9/125µm |
| Wavelength | 1310 / 1550 nm |
| Flame Rating | Riser (OFNR) |
| Cable Outer Dia. (OD) | 2.0 mm / 3.0 mm |
| Polarity | A(Tx) to B(Rx) |
| Cable Type | Tight-Buffered |
| Min. Bend Radius (Fiber) | 10 mm |
| Min. Bend Radius (Cable) | 10 / 5D (Dynamic / Static) |
| Connector Durability | 1000 Cycles |
| Tensile Strength | 90 / 150 N (Long / Short Term) |
| Insertion Loss | ≤ 0.3 dB |
| Return Loss | > 50 dB |
| 1310nm Attenuation | ≤ 0.4 dB/km |
| 1550nm Attenuation | ≤ 0.3 dB/km |
Values are typical reference data taken from the official Huifiber datasheet. Confirm the final specification against the datasheet before ordering.
Frequently Asked Questions
What is the LC/UPC to LC/UPC Duplex OS2 Single-Mode Fiber Patch Cord, Bend-Insensitive G.657.A1 used for?
High-performance Duplex LC/UPC to LC/UPC OS2 Single-mode Fiber Patch Cord. Features G. 657. A1 bend-insensitive fiber, low IL ≤0.3dB & OFNR riser jacket.
Can Huifiber customise the LC/UPC to LC/UPC Duplex OS2 Single-Mode Fiber Patch Cord, Bend-Insensitive G.657.A1?
Yes. Huifiber supplies cable under the buyer's own brand as well as under the Huifiber brand. Fibre count, jacket material, jacket print, drum marking, drum length, packaging and datasheet layout can all be produced to the customer's requirement, and the engineering team can work from a customer specification or adapt an existing construction to a new route requirement.
How is the LC/UPC to LC/UPC Duplex OS2 Single-Mode Fiber Patch Cord, Bend-Insensitive G.657.A1 tested before shipment?
Every production batch is tested before it leaves the plant in Dongguan. Attenuation and geometry are measured on OTDR and optical bench equipment, and mechanical performance is verified against the datasheet for the construction. A factory test report is issued with each shipment, so an incoming inspection can be checked against the same numbers.
What should I send for a LC/UPC to LC/UPC Duplex OS2 Single-Mode Fiber Patch Cord, Bend-Insensitive G.657.A1 quotation?
Send the fibre count and fibre type, the jacket material or fire rating, the route length or span and the drum length you need, the destination port or country, and any certification or test-report requirement. With those details the sales engineer can confirm the construction and return a quotation with an indicative lead time.

