sales@foscoconnect.com
(510) 319-9878
Silicon Valley, CA, USA
Overview
The LC Multimode 62.5µm Loopback is designed for test engineers to efficiently verify the transmission capability and receiver sensitivity of active optical network equipment. It provides a reliable signal loop path for testing network components and infrastructure.
This loopback plug features a compact, durable construction suitable for demanding test environments. It includes a long thumb release for ease of use, molded A and B channel indicators for correct orientation, and a custom strain relief boot. The internal fiber is protected by a flexible, fire-retardant PVC jacket, and the entire assembly is housed in a protective hard shell case for storage and transport.
Key Features
-
LC Connector Interface
Standard LC connector form factor ensures broad compatibility with modern networking hardware ports. -
62.5µm Multimode Fiber
Optimized for testing legacy or standard OM1 multimode fiber network systems. -
Hard Shell Protective Case
Included case protects the delicate internal components when not in use or during transport. -
Long Thumb Release
Designed for improved ergonomics, allowing for easier insertion and removal from tight spaces. -
Channel Identification
Molded A and B channel markers prevent improper connection or testing errors. -
Custom Strain Relief
Reduces fiber stress at the connector interface to ensure longevity under repeated use. -
Fire-Retardant PVC Jacket
Durable outer jacket provides physical protection while meeting standard safety requirements for optical cabling.
Applications
- Testing of optical network equipment transmission capabilities
- Receiver sensitivity verification
- Network component loopback testing
- Data center equipment maintenance
- Fiber optic system troubleshooting
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 682X266 |
| Model | LBK-LC-M6-HS |
| Connector Type | LC |
| Fiber Type | Multimode |
| Core Size | 62.5 micron |
| Jacket Material | PVC (Fire-Retardant) |
Frequently Asked Questions
What is the purpose of this loopback plug?
It is used to route an optical signal directly from a transmitter to a receiver, allowing engineers to test the functionality and sensitivity of network equipment ports.
Is this compatible with 50-micron equipment?
No, this loopback uses 62.5-micron fiber. Mismatched fiber sizes can lead to significant insertion loss and inaccurate test results.
What is included with the loopback?
This specific part includes the LC loopback plug and a protective hard shell case.
Is this TAA compliant?
No, this model is marked as Non-TAA Compliant.
Can this be used in high-heat environments?
It features a standard fire-retardant PVC jacket; please refer to your facility's safety guidelines for acceptable operating temperatures.

