Optical Communication Products

Connecting Networks with Precision Fiber Optics

FOT Fiber Optic manufactures and supplies high-performance fiber patch cords, AOC & DAC cables, optical cable and a full range of fiber accessories — engineered for data centers, telecom and enterprise networks worldwide.

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15+ years manufacturing

100% factory tested

OEM / ODM supported

Insertion Loss

≤ 0.2 dB

Return Loss (APC)

≥ 60 dB

Fast Lead Time

3–7 days

Product Range

A Complete Optical Connectivity Portfolio

From patch cords to high-speed cables and passive accessories — one reliable source for your fiber optic supply chain.

Fiber Patch Cords

Single-mode & multimode jumpers in LC, SC, FC, ST, MTRJ and MPO — simplex, duplex, custom lengths and polarity.

LC/SC/FC/STOS2 · OM3 · OM4UPC/APC

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MPO / MTP Assemblies

High-density trunk cables, harnesses and cassettes for 40G/100G/400G data center backbones. 8, 12, 16 & 24 fiber.

12F · 24FType A/B/CLow-loss

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AOC & DAC Cables

Active Optical Cables and Direct Attach Copper for short-reach, high-speed interconnects — SFP+, QSFP+, QSFP28.

10G–800GSFP/QSFPPassive/Active

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Optical Transceivers

1.6T, 800G and 400G down to 10G — OSFP-XD, OSFP, QSFP-DD, QSFP112, QSFP28, SFP28, SFP+ and XFP, coded and traffic-tested for your platform.

10G–1.6TMulti-brand codedDDM

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Fiber Optic Cable

Indoor & outdoor cable — ADSS, GYTA/GYTS, armored, drop cable, ribbon and tight-buffered distribution.

ADSS · GYTSArmoredDrop cable

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CWDM / DWDM

Passive wavelength multiplexing — CWDM and DWDM mux/demux, OADM add/drop, LAN WDM, MWDM and FWDM filters, built to your channel plan.

4–48 channelsRack · ABS · LGX0 W passive

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Fiber Accessories

Adapters, attenuators, PLC splitters, patch panels, ODF, pigtails, closures and tools — everything to complete the link.

AdaptersPLC SplittersODF / Panels

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1.6T

1.6T OSFP DR8 500m

MPO-16 · SMF

800G

800G OSFP SR8

850 nm · 50 m OM4

800G

800G OSFP112 2xDR4

1310 nm · 500 m

DAC

800G OSFP112 Passive DAC

In-rack · ≤ 3 m

AOC

800G OSFP AOC

Rack-to-rack

400G

400G QSFP-DD DR4

1310 nm · 500 m

100G

100G QSFP28 SR4

850 nm · 100 m OM4

MPO

MPO/MTP Trunk Jumper

Base-8 / Base-12

Why FOT Fiber Optic

Built for Reliable, Scalable Networks

A manufacturer partner that combines factory-direct pricing with engineering support and consistent quality.

Factory-Tested Quality

Every assembly undergoes 3D interferometer, insertion & return loss testing before shipment.

Fast Lead Times

Standard items ship in 3–7 days. Dedicated production lines keep bulk orders on schedule.

OEM / ODM Service

Custom lengths, labeling, connectors, colors and packaging — your brand, our production.

Worldwide Delivery

Reliable export logistics to 60+ countries with full documentation and after-sales support.

In-house production lines10+

Monthly output capacity500K+ pcs

Quality managementISO 9001

Average defect rate< 0.1%

About Us

Your Dedicated Fiber Optic Manufacturing Partner

Based in Shenzhen, FOT Fiber Optic (TOPNET SYSTEM) has spent over a decade producing optical interconnect solutions for telecom operators, data centers, system integrators and distributors around the world. We control quality from raw ferrule to finished assembly.

Vertically integrated production for consistent quality and pricing
Experienced engineering team for custom and hard-to-source items
Responsive English-speaking sales & technical support

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Quality & Compliance

Tested, Certified, Trusted

Our products and processes meet international standards so you can integrate them with confidence.

ISO 9001

RoHS

Telcordia GR-326

REACH

Get In Touch

Let's Talk About Your Project

Tell us what you need — product type, quantity, specifications — and our team will get back to you quickly.

Emailmarketing@fotfiberoptic.com

Phone+86 0755 23766314

WhatsApp / WeChat+86 134 8099 6017

Location5th Floor, Science Park, Hua Ning Road, Longhua District, Shenzhen, Guangdong, China

Business HoursMon–Sat · 9:00–18:00 (GMT+8)