ST-D4 Singlemode Ultra Fiber Optic Cable
The iFiber Optix ST-D4 Singlemode Ultra Fiber Optic Cable is engineered for reliable, high-precision connectivity in telecommunications, data centers, and enterprise networks that require low-loss optical performance.
Featuring Corning SMF28 Ultra Optical Fiber and precision ST and D4 connectors, this cable delivers dependable signal integrity over long distances and is designed for demanding network environments.
ST-D4 Singlemode Ultra Fiber Optic Cable
The ST-D4 Singlemode Ultra Fiber Optic Cable pairs an ST connector with a D4 connector for stable, low-loss optical transmission. Its singlemode construction supports precision networking where signal quality, reliability, and long-distance performance matter most.
This cable is a strong fit for telecom systems, data center interconnects, and enterprise installations that need dependable fiber performance.
Performance Specifications
All iFiber Optix ST-D4 singlemode assemblies are manufactured and tested to meet or exceed the following optical and mechanical performance specifications.
| Insertion Loss | 0.3 dB |
| Typical Insertion Loss | 0.15 dB |
| Back Reflection | < -55 dB |
| Back Reflection (Typical) | < -65 dB |
| Temperature Range | -40°C to 85°C |
| Available Cable Sizes | 2.0, 1.8, 1.6, and 1.2 mm |
| Connector Type | ST to D4 Duplex |
| Fiber Core / Cladding | 8.33 / 125µm |
| Part Number | I2753-WW-XX-XJ |
| Return Loss | ≥ 60 dB |
| Insertion Loss | < 0.3 dB |
Key Features
- Reliable Performance Stable optical transmission supports critical network environments that require consistent, low-loss connectivity.
- Low Insertion Loss With insertion loss below 0.3 dB, the cable helps preserve signal strength over long runs.
- High Return Loss The polished connector ends help reduce back reflection and improve signal integrity.
- Durable Construction Built to meet SPC GR-326 geometric requirements for long-term reliability and precision termination.
- Flexible Outer Diameters Available in multiple cable sizes to support different routing, space, and installation needs.
Ideal Applications
ST-D4 singlemode cables are commonly used where low-loss precision and secure optical connections are both important.
Telecommunications
Ideal for long-distance optical links in telecom networks.
Data Centers
Supports high-density optical environments that require low-loss connectivity.
Enterprise Networks
Useful in campus and building networks where dependable singlemode performance matters.
Network Backbones
Well suited for backbone runs and inter-building connections.
Test and Measurement
Appropriate for optical testing and precision lab setups.
Custom Fiber Builds
Available in custom lengths and configurations for specialized deployments.
How to Choose the Right ST-D4 Configuration
Use these considerations to match the cable to your network needs.
Confirm Distance Requirements
Select singlemode when your installation requires long-range transmission and low attenuation.
Check Connector Compatibility
Verify that both ends match your hardware and that the ST and D4 terminations fit your system.
Match the Environment
Choose the correct jacket and build style for indoor, outdoor, or mixed-use deployments.
Plan for Routing Needs
Pick a cable length and diameter that support clean routing and reliable termination.
Why Choose iFiber Optix?
- Quality Assurance Each cable is built and tested for consistent optical performance before shipment.
- Custom Configurations Lengths, jackets, and connector options can be tailored to your project.
- Reliable Support Our team can help you choose the right fiber solution for telecom, data center, or industrial use.
- Built for Critical Deployments Designed to deliver dependable long-distance connectivity in demanding network environments.
Request Information
Ready to spec ST-D4 singlemode cables for your next deployment? Our team can help with custom lengths, jacket selection, and bulk pricing.