DESCRIPTION
The SC Single-Mode & Multi-Mode Fiber Optic Loopback Module/Cable is a reliable tool for testing and troubleshooting optical networks. It simulates a live network environment by looping optical signals back into the transmitting device, allowing technicians to validate system functionality and pinpoint faults efficiently.
This versatile loopback module/cable supports both single-mode and multi-mode fibers, ensuring compatibility across a wide range of applications. Its durable construction and precise alignment minimize insertion loss and maximize signal integrity, making it an essential component for fiber optic testing and maintenance.
- Precision Testing:
- Ensures accurate testing with low insertion loss and high return loss.
- Perfect for verifying the performance of transceivers and active devices.
- Versatile Compatibility:
- Available for both SM (9/125μm) and MM (50/125μm or 62.5/125μm) fibers.
- SC connector ensures compatibility with a wide range of equipment.
- Robust Design:
- ABS plastic housing provides excellent protection.
- Compact and lightweight for ease of use in various testing environments.
- Custom Options:
- Custom loopback lengths available for specific diagnostic needs.
- Connector polish options include UPC or APC for tailored performance.
| Item | Specification |
|---|---|
| Product Type | Fiber Optic Loopback Module / Cable |
| Connector Type | SC Duplex |
| Polish Options | UPC / APC |
| Single-Mode Fiber | G.657A2 (9/125µm) |
| Multi-Mode Fiber | OM1 / OM2 / OM3 / OM4 / OM5 (50/125µm or 62.5/125µm) |
| Insertion Loss | ≤0.3 dB |
| Return Loss | UPC ≥50 dB, APC ≥60 dB |
| Repeatability | ≤0.1 dB |
| Changeability | ≤0.2 dB |
| Fiber Structure | Duplex |
| Cable Diameter Options | 0.9 mm / 2.0 mm / 3.0 mm |
| Working Temperature | -40°C to +80°C |
| Durability | 1000 mating cycles |
| Typical Applications | Telecom network testing, data center transceiver verification, equipment troubleshooting, calibration, R&D and training |
- Telecommunication Networks:
Essential for testing and maintaining high-speed optical communication systems.
- Data Center Operations:
Used for validating transceivers and active components in dense networking environments.
- R&D and Training:
Perfect for testing experimental setups and training new technicians.
- Equipment Calibration and Debugging:
Helps in pinpointing and resolving faults in optical systems.
SC Fiber Optic Loopback Modules and Cables are compatible with various transceiver types. The table below highlights specific loopback choices:
| Model | Interface Type | Cable Type | Suited Loopback |
| 10GBASE-ER | SC Duplex (UPC) | SMF | SC/UPC Duplex Single-Mode Fiber Loopback |
| 10GBASE-ZR | SC Duplex (UPC) | SMF | SC/UPC Duplex Single-Mode Fiber Loopback |
| 40GBASE-LR4 CFP | SC Duplex (UPC) | SMF | SC/UPC Duplex Single-Mode Fiber Loopback |
| 100GBASE-ER4 CFP | SC Duplex (PC/UPC) | SMF | SC/UPC Duplex Single-Mode Fiber Loopback |
Q1: What is the main purpose of SC fiber optic loopback modules and cables?
They are used for precision testing of fiber optic networks, helping verify transceiver performance and active devices with low insertion loss and high return loss.
Q2: Which fiber types are compatible with SC loopback modules?
They support both single-mode (9/125μm) and multimode (50/125μm or 62.5/125μm) fibers, making them suitable for a wide range of equipment and network environments.
Q3: What connector types and polish options are available?
SC loopback modules come with SC connectors, compatible with most devices. Polishing options include UPC for standard applications and APC for low-reflection requirements.
Q4: How is the SC loopback module designed for durability?
The module features a robust ABS plastic housing that provides protection while remaining compact and lightweight, ideal for various testing environments.
Q5: Can SC loopback cables be customized?
Yes, custom loopback lengths are available to meet specific diagnostic or testing needs, ensuring flexibility for different projects.
Q6: What are the typical performance specifications?
They offer low insertion loss (≤0.3dB) and high return loss (≥50dB for SM, ≥20dB for MM), guaranteeing accurate and reliable test results.
Q7: What applications are SC loopback modules suitable for?
Ideal for data centers, telecom networks, R&D labs, and fiber equipment production, they are widely used for functional verification and troubleshooting of fiber optic systems.
Q8: What is the typical delivery time?
Standard modules are usually shipped within 3–5 working days, while customized lengths or polish options may require 7–10 working days.
