About us

One-stop industrial internet solutions, built in Shenzhen.

ZTRS is the optical networking brand of Shenzhen Bieshan Technology Co., Ltd. — an information and communication technology (ICT) service provider specializing in optical transceivers, industrial Ethernet switches and fiber media converters.

12,000㎡
Production area
8,600㎡
Base area
100+
R&D personnel
300,000
Switches / year
Who we are

Vision, mission and values

Vision

To grow into China's leading brand in ICT technology.

Mission

To drive continuous technological innovation and create value for customers.

Core values

Innovation · Collaboration · Professionalism · Customer first.

Manufacturing strength

Automated production at scale

Production area12,000 ㎡
Annual capacity — optical modules1,200,000 pcs
Annual capacity — industrial switches300,000 pcs
Cleanroom10,000-class production lines
Process precisionCOB die-attach & wire-bonding at 0.5 μm
ZTRS automated optical module production line ZTRS factory interior and cleanroom ZTRS manufacturing base in Shenzhen ZTRS production facility
R&D capabilities

Full-process research & development

Structural design, optical simulation, RF simulation, thermal simulation and performance verification — every product is engineered and validated before production.

Structural design

Mechanical and packaging design for optical modules and switches.

Optical simulation

Optical path simulation to guarantee signal integrity.

RF simulation

High-speed signal simulation for 10G/25G/40G/100G.

Thermal simulation

Thermal design to ensure stable wide-temperature operation.

Performance verification

Comprehensive test against customer requirements.

Customization

Tailored to your application

Industrial-grade transceivers

Ruggedized optics for harsh environments.

Rail-type switches

DIN-rail industrial Ethernet switches.

Rack-mount switches

19-inch rack-mount industrial switches.

EN50155 railway-grade

Certified for railway rolling-stock applications.

Intrinsically-safe type

Designed for explosive/hazardous environments.

Quality & certifications

Certified for global deployment

Our quality, safety and environmental management systems are independently certified to international standards.

ISO 9001 ISO 14001 ISO 45001 Germany TUV North American UL EMC RoHS Network Access License

Intelligent manufacturing

MES, SPC and PLM systems with full digital traceability.

Quality early-warning

Real-time monitoring of key process parameters.

Full-process testing

Humidity, temperature-cycling, powered burn-in and more.

Products

What we manufacture

Optical transceivers

1.25G ~ 100G · SFP / SFP+ / SFP28 / QSFP+ / QSFP28 · SR/LR/ER/ZR · CWDM/DWDM.

Industrial Ethernet switches

Layer 2 / Layer 3 · PoE / PoE+ / PoE++ · rail & rack-mount.

Fiber media converters

Telecom & industrial grade · 100M / Gigabit · single & dual fiber.

Let's talk about your project.

Send us your part number or application requirements — our engineering and sales team will respond with a matched solution and quotation.

info@fiberoptlink.com