8/12/24 Fiber MPO/MTP Fiber Optic Loopback Module – for Network Testing and Port Validation

1. High-Quality MPO/MTP Connectors

• Supports both standard loss and super low-loss connectors.
• Options include SM APC (Green/Yellow), MM PC (Beige/Aqua), and MM OM4 (Heather Violet).

2. Optical Performance

• Low insertion loss: SM(G652D) <1.5dB, SM(G657A1) <0.7dB, SM Elite < 0.3dB, MM <1dB
• High return loss: ≥50dB (SM); ≥25dB (MM).
• Insert-pull durability of 500 cycles with IL variation ≤0.5dB.

3. Robust and Compact Design

• Compact housing offers space efficiency in high-density setups.
• Rugged construction for reliable performance in varied environments.

4. Customizable Options

• Available in 8F, 12F, and 24F configurations to support diverse testing scenarios.
• Multiple polarity options ensure compatibility with different transceiver models.

Product Specifications

Polarity for MPO/MTP Fiber Optic Loopback

Application Details

• Transceiver Testing: Ensures the performance of 40G and 100G MPO/MTP interface devices.
• Telecom and Data Networks: Validates equipment functionality and network continuity.
• Manufacturing and R&D: Enables burn-in testing to verify equipment reliability during production.
• Maintenance and Troubleshooting: Provides a looped signal path for easy diagnostics of fiber optic systems.

Choosing the Right Loopback for Specific Transceivers

 When selecting a loopback for a transceiver, it’s important to consider the connector type, polish type, and cable type. Below is a summarized guide for common transceiver models and their suited loopback options:

Table 1: Loopback Options for 10G SFP+ Transceivers

Table 2: Loopback Options for 40G QSFP+ Transceivers

Table 3: Loopback Options for 100G QSFP28 Transceivers

Table 4: Loopback Options for CFP Transceivers

FAQ

Q1: What is the purpose of an MPO/MTP loopback module?
It is mainly used for testing, diagnostics, and equipment burn-in by looping the signal from the transmitter back to the receiver, helping verify link performance and identify potential issues.

Q2: What fiber types are available for the loopback cable?
Both single-mode (OS2) and multimode (OM3/OM4) versions are available, allowing compatibility with different transceiver requirements.

Q3: Which transceivers are supported?
The loopback module is designed for 40GBASE-SR4, CSR4, and 100GBASE-SR4 transceivers, widely used in high-speed optical networks.

Q4: What is the difference between 8, 12, and 24 fiber loopback modules?
8-fiber is commonly used for 40G applications, while 12-fiber and 24-fiber modules support higher port density and 100G or future-proof testing scenarios.

Q5: How is the product tested before shipment?
Each loopback module undergoes rigorous optical testing for insertion loss, return loss, and polarity verification to ensure stable performance.

Q6: Can the loopback module be customized?
Yes. Options include fiber count (8/12/24), connector type (MPO or MTP), key-up/key-down orientation, jacket material, labeling, and packaging.

Q7: What environments are these loopback modules suitable for?
They are widely used in data centers, telecom operator networks, and equipment R&D or manufacturing testing setups.

Q8: What is the typical delivery time?
Standard loopback modules are usually in stock, while customized versions are delivered within 3–7 working days depending on specifications.