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LC/UPC Duplex Single Mode 9/125 Fiber Loopback Module
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Product Highlights:
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High-precision LC/UPC duplex single-mode loopback module designed for equipment testing, troubleshooting, and port verification in OS2 9/125 networks.
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Each module is fully factory-tested to ensure stable insertion performance, low reflectance, and reliable loopback operation.
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Ideal for telecom, FTTH, and data-center environments requiring quick and accurate link diagnostics.
Table of Contents
Description
The FiberMania LC/UPC Duplex Single Mode 9/125 Fiber Loopback Module is an essential diagnostic tool used to verify the integrity and functionality of optical network equipment. Built with precision LC/UPC connectors, this loopback module provides a stable optical return path for testing transmission ports, identifying network issues, or validating transceiver performance.
The OS2 single-mode fiber ensures low attenuation and long-distance stability, making it suitable for telecom carriers, FTTH deployments, and laboratory environments that require high accuracy. A durable yellow PVC jacket enhances protection, while the duplex clip ensures quick, correct alignment during insertion. Each loopback module is 100% functionally tested before shipment to guarantee consistent product quality.
Specification
| Connector Type | LC/UPC |
|---|---|
| Connector Polishing | UPC |
| Fiber Mode | OS2 Single Mode |
| Fiber Size | 9/125 µm |
| Core Diameter | 9 µm |
| Jacket Type | PVC |
| Jacket Color | Yellow |
| Loopback Type | Duplex |
| Durability | >500 cycles (≤0.2 dB loss change) |
| Reflectance | ≥20 dB |
| Insertion Loss | Typically ≤0.3 dB (industry standard for OS2 loopbacks) |
| Operation Temperature | −20°C to +70°C (typical) |
| Storage Temperature | −40°C to +85°C |
| Use Case | Port testing, diagnostics, FTTH systems, telecom verification |
| Compliance | RoHS |
| Packaging | Standard or OEM/Private label |
| Compatibility | LC/UPC single-mode transceivers & test ports |
Features
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Designed specifically for single-mode 9/125 (OS2) fiber testing.
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LC/UPC duplex connectors for stable performance.
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Duplex clip ensures accurate and easy insertion every time.
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Fully tested prior to shipment for guaranteed reliability.
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Rugged, compact, and suitable for repeated field use.
Applications
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Fiber optic laboratories and R&D centers
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Telecom equipment port testing
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FTTH network troubleshooting
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Transceiver burn-in and validation
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System diagnostics for switches, routers, OLT/ONT, media converters
Frequently Asked Questions (FAQ)
Q1: What is the purpose of a loopback module?
It creates an optical return path, allowing you to test TX/RX functionality, verify port health, or troubleshoot network issues.
Q2: Is this module compatible with LC/APC ports?
No. This model uses LC/UPC connectors. APC versions are available on request.
Q3: Can this be used for multimode testing?
No. This loopback is OS2 single mode. FiberMania offers OM1/OM2/OM3/OM4/OM5 multimode versions.
Q4: Does FiberMania support private-label or custom builds?
Yes, complete OEM/ODM customization—including logos, colors, and fiber types—is available.
Q5: How durable is the module?
It is rated for over 500 mating cycles with ≤0.2 dB performance change.
Quality Qulifications and Compliance
To get the detailed certification, please go to the Compliance.
Please Note: Our products comply with all internationally recognized and industry-standard specifications. For customized or special requirement products, we carry out testing and standards in accordance with the conformity criteria specified in the contract.
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