The FC UPC Fiber Optic Cable Connector is a simplex single-mode connector designed for stable fiber connections where a threaded coupling mechanism is preferred. It uses 9/125 μm OS2 single-mode fiber, UPC end-face polishing, and a 2.0 mm cable boot as the standard configuration. OEM configurations are available for customer-specified fiber, cable, connector, and packaging requirements.
Connector Specifications
|
Parameter |
Specification |
|
Connector Type |
FC/UPC |
|
Fiber Mode |
Single Mode |
|
Fiber Type |
9/125 μm OS2 |
|
Polish Type |
UPC |
|
Configuration |
Simplex |
|
Standard Cable Diameter |
2.0 mm |
|
Insertion Loss |
≤0.3 dB typical |
|
Return Loss |
≥50 dB |
|
Operating Wavelength |
1310 / 1550 nm |
|
Operating Temperature |
-40°C to +75°C |
|
Mating Durability |
≥500 cycles |
|
Compliance |
IEC 61754-13, TIA/EIA-604-4, RoHS |
Connector Structure & Design
The FC/UPC connector consists of a 2.5 mm precision ferrule, connector body, alignment key, threaded coupling nut, and strain-relief boot.
Zirconia ceramic ferrule
Provides precise fiber alignment and stable end-face contact.
01
UPC-polished end face
Uses Ultra Physical Contact geometry to reduce optical back reflection.
02
Threaded coupling nut
Secures the connector to a compatible FC adapter or equipment interface and provides resistance to loosening caused by vibration.
03
Alignment key
Controls connector orientation during mating.
04
Strain-relief boot
Protects the cable transition from excessive bending and mechanical stress.
05
Fiber & Cable Compatibility
The standard version is designed for 9/125 μm OS2 single-mode fiber with a 2.0 mm cable diameter. For project-specific assemblies, compatible cable constructions can be configured according to the required fiber and jacket specification.
Cable diameter, jacket construction, fiber type, and connector polish should be confirmed against the equipment interface and optical system before production.
Applications
The FC/UPC connector is suitable for applications where a threaded, mechanically secure fiber interface is required, including:
Telecom networks: Single-mode transmission equipment and fiber distribution systems
Optical test equipment: OTDRs, optical power meters, and laboratory instruments
Industrial fiber networks: Equipment exposed to vibration or frequent mechanical handling
CATV and broadcast systems: Fiber-based signal transmission equipment
Data center and equipment interconnection: Single-mode links using FC interfaces
OEM optical assemblies: Pre-terminated cables, pigtails, and equipment-specific assemblies
Customization / OEM
For volume orders and equipment integration, the connector can be supplied according to customer drawings, cable specifications, or assembly requirements.
Customization can include:
FC/UPC, FC/APC, or other connector configurations
0.9 mm, 2.0 mm, 3.0 mm, or specified cable diameters
OS1, OS2, and applicable multimode fiber
PVC, LSZH, plenum, or ruggedized cable jackets
Custom cable lengths and jacket colors
Connector body identification and customer labeling
OEM packaging, kitting, and pre-terminated cable assemblies
Inspection & Testing
Quality inspection should cover both optical performance and mechanical reliability. Typical production controls include:
End-face inspection: Ferrule geometry, contamination, scratches, chips, and polishing condition
Insertion loss testing: Verification against the specified optical loss limit
Return loss testing: Confirmation of the required UPC back-reflection performance
Mating durability: Repeated connection/disconnection testing
Tensile and mechanical inspection: Verification of connector-to-cable retention and strain-relief integrity
Environmental testing: Temperature cycling and other agreed environmental tests for project-specific requirements
Dimensional inspection: Ferrule, housing, key, coupling components, and cable interface dimensions
Test reports and inspection records can be supplied according to the agreed purchase specification or project quality requirements.
FAQ
Q: What is the difference between FC/UPC and FC/APC connectors?
A: FC/UPC and FC/APC use the same FC threaded interface but have different ferrule end-face geometries. UPC is generally used for standard single-mode connections, while APC is selected when lower back reflection is required. The two polishing types should not be mixed in the same optical connection.
Q: Can this connector be supplied as a fiber optic pigtail or patch cord?
A: Yes. The connector can be assembled onto pigtails, patch cords, and other pre-terminated fiber assemblies.
Q: What information should be provided when requesting a quotation?
A: For an accurate quotation, buyers should provide the connector type and polish, fiber type, cable diameter, cable length, jacket material, order quantity, packaging requirements, and destination. A drawing or sample can be provided when the assembly has non-standard dimensions.
Q: Can samples be provided before a bulk order?
A: Yes. Pre-production samples can be arranged for specification and assembly approval before volume production. Sample requirements should identify the exact connector configuration and cable construction required for the intended bulk order.
Q: What is the typical delivery time for bulk orders?
A: The order delivery time consists of 7–14 days for processing and 20–30 days for shipping. The actual arrival date depends on the destination, shipping method, and customs clearance. For urgent or large-volume orders, the delivery schedule should be confirmed before order placement.
Q: What shipping and delivery terms are available for international orders?
A: Orders can be shipped under EXW, DAP, or DDP terms, depending on the destination and order requirements. EXW is suitable when the buyer arranges transportation, while DAP/DDP can simplify door-to-door delivery. The applicable shipping method and Incoterm should be confirmed when requesting a quotation.
Q: What packaging is used for export orders?
A: Standard export packaging can include individual protective bags or caps, inner cartons, and reinforced outer cartons. For larger or long-distance shipments, packaging can be upgraded according to the order quantity, transportation method, and customer's handling requirements.
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