Overview
LC/UPC Singlemode Fiber Loopback Module is designed for fiber optic testing, signal routing, and network diagnostics in telecommunication and data communication systems. It provides a reliable solution for testing optical transmission capability and troubleshooting network equipment.
The module is equipped with LC/UPC connectors and OS2 singlemode fiber, ensuring low insertion loss, stable optical performance, and high reliability. Its compact plug-and-play design makes it suitable for quick deployment in network testing and maintenance applications.
Features
- LC/UPC connector interface
- OS2 singlemode fiber
- Low insertion loss and high return loss
- Stable optical signal performance
- Compact and durable structure
- Plug-and-play installation
Applications
- Optical transceiver testing
- Fiber optic network diagnostics
- Telecommunication systems
- FTTH / FTTx networks
- Data center cabling
- Network maintenance and troubleshooting
General Specification
| Fiber Adapter Type | LC/UPC loopback |
| Body Style | Duplex |
| Fiber Mode | Singlemode |
| Polish Type | UPC |
| Insertion Loss | ≤0.3dB |
| Mounting Type | No |
| Housing Color | Plastic |
| Durability | 1000 times |
| Alignment Sleeve Material | Ceramic |
| Flammability Rate | UL94-V0 |
| Compliant | Telcordia GR-326-CORE |

Ordering Information
| PART NO. | DESCRIPTION |
| G4491 | LC/UPC Fiber optic Loopback adapter singlemode |
If you need any further assistance, please feel free to contact us at sales@gorelink.com .