Optical Communication Products · Shenzhen, China
Tel: +86 0755 23766314  ·  marketing@fotfiberoptic.com
Request a Quote
100% Factory TestedFC/UPC Flange Fixed Attenuator — FOT Fiber Optic
Click to select options — your selection is included in the quote email. Options marked ↗ open the matching product page.

FC/UPC Flange Fixed Attenuator

SKU: FOT-ATT-FC · Category: PLC Splitters & Accessories

Screw-on FC build-out pads for transport & test racks. Factory-terminated and 100% tested before shipment.

1–25 dBValues
±0.5 dBAccuracy
≥ 50 dBReturn Loss
Screw-OnVibration-Proof
Interface
FCLC ↗SC ↗
Value
3 dB5 dB10 dB15 dB20 dB
Polish
UPCAPC
Request a Quote Request Datasheet
Ships worldwide
OEM / ODM welcome
3-year warranty

Product Overview

The FC flange attenuator threads onto any FC bulkhead adapter, giving the most vibration-secure fixed attenuation of the series — the classic choice for transport racks, test benches and instrument front panels where cords get moved daily.

Same metal-ion doped attenuation fiber as the LC/SC family: wavelength-flat at 1310/1550 nm, every unit measured before shipping. Need LC or SC instead? Click the interface options above to jump to that version.

Technical Specifications

Optical
Values1–25 dB (1 dB steps)
Accuracy±0.5 dB (≤10dB) / ±1 dB
Return Loss≥ 50 dB UPC
Power≤ 500 mW
Package
StyleFemale-to-male, threaded
InterfaceFC, ceramic ferrule
Temp−40 ~ +80 °C
ComplianceGR-910

Typical Applications

Data Centers

High-density interconnect & spine-leaf

Cloud & AI Clusters

GPU fabrics and storage networks

Telecom & FTTx

Carrier transport and access

Enterprise

Campus backbone and SAN

Frequently Asked Questions

Why choose FC for lab and test environments?

The threaded coupling nut cannot be knocked loose — repeated connect/disconnect cycles and bench vibration leave the attenuation value rock-stable, which is why test sets still standardize on FC.

Are the patch cords tested before shipment?

Every assembly undergoes 100% optical inspection plus insertion- and return-loss testing to IEC, TIA/EIA and Telcordia standards. Test reports are available on request.

Can length, color, jacket and connectors be customized?

Yes — length, jacket color and material (PVC / LSZH / OFNP / OFNR), cable diameter (0.9 / 2.0 / 3.0 mm) and any connector combination are OEM/ODM customizable.

What are your MOQ and lead time?

Standard configurations ship in 3–7 days with flexible MOQ. Custom OEM/ODM runs are quoted per project — send us your specs for a fast quotation.

Related Products

1×8 PLC Splitter Mini Module
PLC Splitters & Accessories

1×8 PLC Splitter Mini Module

Rack-Mount PLC Splitter (1×16 / 1×32)
PLC Splitters & Accessories

Rack-Mount PLC Splitter (1×16 / 1×32)

2×2 PLC Splitter Mini Module
PLC Splitters & Accessories

2×2 PLC Splitter Mini Module

FBT Coupler / Splitter
PLC Splitters & Accessories

FBT Coupler / Splitter

Request a quote for this part

Tell us the platform and the quantity. An engineer checks the part against your switch and software version before quoting — if it will not work, we say so.

Goes to our engineers and the quotation desk together. Replies come from sales@topnetsystem.com, usually within one working day.