Zhaolong Indoor Optical Cables – The Standardized Backbone for Smart Buildings

As digital transformation accelerates, structured cabling systems – the critical infrastructure of data communication – demand higher standardization and safety.

Under ISO/IEC 11801-1:2017, indoor optical cable systems require stable transmission performance, stringent flame ratings, and excellent installability to support long-term operation in commercial buildings.

As a key part of urban infrastructure, smart building cabling must comply with installation grade flame requirements in ISO/IEC 11801-1 and Chinese national standards, typically using LSZH jackets to meet riser environments and fire approval, ensuring public safety.

Zhaolong Interconnect offers a full range of indoor optical cables covering OS2 single-mode and OM3/OM4/OM5 multi-mode, fully supporting high-speed applications from 10G up to 400G/800G.

We provide mature, rigorously tested products aligned with international standards, delivering stable, reliable, and maintainable physical transmission for smart buildings.

Key Advantages of Zhaolong Indoor Optical Cables

High-Performance Transmission

• OS2 attenuation ≤ 0.40 dB/km @1310 nm;

• OM4 effective modal bandwidth ≥ 4700 MHz·km @850 nm, ensuring high signal integrity and low latency.

Strong Mechanical Properties

• Tight-buffer structure for easy stripping and superior fiber protection;

• Aramid yarn reinforcement provides 200N–400N long-term tensile strength for demanding installations.

Classified Flame Retardancy

• PVC and LSZH (Low Smoke Zero Halogen) jacket options available across the range;

• High-performance versions certified to IEC 60332-3 and Class B1 (d0, t0, a1) for maximum fire safety.

For data centers requiring extreme bandwidth, Zhaolong also provides high-performance Active Optical Cables (AOC).

With integrated optoelectronic design, they enable plug-and-play deployment with minimal signal loss and interference.

Safe Installation Guidelines for Indoor Optical Cables

To achieve optimal performance, observe these best practices:

•  Use cables certified to LSZH and EN 50575 (CPR).

• Minimum bending radius ≥ 10 × outer diameter.

• Install support or relief loops for vertical runs to avoid long-term tension.

• Identify cables by jacket color: single-mode (yellow), multi-mode (orange/aqua/violet).

• Do not route outdoor cables directly into equipment rooms; transition to indoor cables at designated points.

Manufacturing Strength & Field Proven Performance

Zhaolong’s reliability comes from vertically integrated production and testing.

Based on our modern facility in Deqing, Zhejiang, China, we control the full process from optical fiber cable to cable assemblies.

Our CNAS-accredited laboratory (No. L14161) provides authoritative validation for low loss and high reliability.

Zhaolong optical products fully comply with GR-326-CORE, IEC 61753 and other global standards, ensuring stable performance in demanding environments.

Proven in major projects including:

• Hezuo Network Zhoupu Data Center

•  Guangxi Wuxiang Mobile IDC

• BGI Data Center

• Huadi Group Data Center

• Beidou Data Center

• Songjiang Data Center

• Chengdu Kecheng Cloud Data Center

• Jiangyin Municipal Government Data Center

Going forward, Zhaolong Interconnect will continue to focus on optical connectivity, providing a trusted physical transmission foundation for data centers and smart buildings.