sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
Overview
The SC Multimode 50μm Loopback plug is designed to provide test engineers with an effective method for testing the transmission capabilities and receiver sensitivity of optical network equipment. By creating a temporary signal loop, it allows for accurate assessment of hardware performance in various network environments.
This loopback plug features a compact, durable construction suitable for demanding testing applications. It includes integrated A and B channel markers for clear identification and a custom-designed strain relief boot for enhanced cable longevity. The internal optical fiber is shielded by a flexible, fire-retardant PVC jacket, ensuring reliable operation in data center and field testing scenarios.
Key Features
-
Multimode 50μm Fiber
Optimized for multimode signal testing to ensure compatibility with standard enterprise network equipment. -
SC Connector Interface
Standard SC connector design provides seamless, secure connections into existing optical ports. -
Integrated Channel Markers
Molded A and B markers facilitate correct orientation and minimize configuration errors. -
Custom Strain Relief Boot
Specially engineered boot reduces cable fatigue and prevents damage at the connector interface. -
Fire-Retardant Jacket
Durable PVC outer jacket meets standard safety requirements for controlled testing environments. -
Compact Design
Small form factor allows for use in high-density port environments without interfering with adjacent connections.
Applications
- Optical network equipment testing
- Transceiver sensitivity verification
- Network link troubleshooting
- Signal integrity validation
- Data center maintenance
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 682X276 |
| Model | LBK-SC-M5-NC |
| Fiber Type | Multimode |
| Core Size | 50μm |
| Connector Type | SC |
| Jacket Material | PVC (Fire-Retardant) |
Frequently Asked Questions
What is the purpose of a loopback plug?
It is used to route an optical signal back to the transmitting source to verify the operation of network equipment, such as transceivers and switches.
Is this plug compatible with single-mode fiber?
No, this model is specifically designed for 50μm multimode fiber applications.
Does this include a protective case?
No, this specific model (NC) refers to a version without an external hard case.
Can I use this in high-density rack environments?
Yes, the compact design is specifically suited for high-density testing environments.
What do the A and B markers indicate?
They denote the A and B channels of the fiber, helping ensure proper polarity matching during testing.

