High-Density Optical Verification Solution for Transceiver and Network Testing
DIMI MPO Loopback Test Modules provide a reliable closed-loop connection between transmitter and receiver ports. Designed for optical testing, troubleshooting, and performance verification of MPO based systems, these modules enable accurate diagnostics of transceivers, fiber links, and high-speed data networks.
Key Features
Broad Compatibility
Supports QSFP, QSFP28, QSFP-DD, and OSFP optical transceivers.
Flexible Fiber Counts
Available in 8, 12, 16, and 24-fiber configurations.
Full Fiber Specifications
Supports Single Mode (OS2) and Multimode (OM3/OM4/OM5) fibers.
Comprehensive Customization
Tailored polarity (Type A/B/C), customized attenuation, and specific cable lengths.
Industrial Compliance
Manufactured to meet IEC, TIA, and Telcordia standards.
Technical Specifications
|
Parameter |
Specification |
|
Product Type |
MPO Loopback Test Module |
|
Connector Type |
MPO |
|
Fiber Count |
8 / 12 / 16 / 24 Fibers |
|
Fiber Mode |
Single Mode OS2 (9/125μm) / Multimode OM3, OM4, OM5 (50/125μm) |
|
Connector Polish |
PC / APC |
|
Polarity Mapping |
Type A / Type B / Type C / Customized |
|
Insertion Loss |
Standard Loss: ≤ 0.60dB / Low Loss: ≤ 0.35dB |
|
Return Loss |
≥ 35dB (Multimode), ≥ 60dB (Single Mode APC) |
|
Standards Compliance |
Telcordia GR-1435-CORE, IEC 61754-7, TIA-604-5 (FOCIS 5) |
|
Environmental Safety |
RoHS, REACH Compliant |
|
Operating Temperature |
-20°C to +70°C |
|
Storage Temperature |
-40°C to +85°C |
Main Applications
Transceiver Manufacturing & Verification
Factory-floor testing of TX/RX channels for high-speed optical modules.
Data Center Deployment
Network link verification, port diagnostics, and infrastructure troubleshooting.
R&D Testing Laboratories
Optical signal validation and network equipment development.
Quality Control Standards
Every module undergoes a strict quality control workflow prior to shipment:
Fiber End-Face Inspection: Visual inspection via high-resolution digital microscopes to ensure a scratch-free optical path.
3D Geometry Testing: Interferometer verification to monitor crucial geometric parameters-including fiber height, radius of curvature, and apex offset-ensuring optimal physical contact.
Optical Measurement: 100% individual insertion loss (IL) and return loss (RL) testing.
Polarity Verification: Verification of internal fiber mapping to prevent loop errors.
Traceable Test Reports: All shipments include individual optical performance test data to guarantee compliance with project specifications.
Why Partner with DIMI?
1. Direct Factory Production with Full Traceability
We are a direct, specialized fiber optic manufacturer, not a trading company. This ensures complete visibility into the manufacturing process and an optimized supply chain.
Cost Efficiency: By eliminating middleman markups, we pass direct factory pricing to our clients, ensuring competitive cost-per-unit for large-scale deployments.
Component Transparency: We use strictly compliant, standardized raw materials. Every batch of ceramic ferrules and optical fibers is fully traceable from incoming quality control (IQC) to the finished module.
2. Tailored Technical & Custom Customization
Standard off-the-shelf loopback testers often fail to match specialized laboratory setups or unique transceiver port architectures.
Simulated Link Loss: We can integrate precise attenuation values (from 1dB up to 10dB) internally into the loopback module, allowing engineers to simulate real-world fiber link budgets.
Tailored Form Factors: We support customized fiber routing loops (including specific cross-mapping), compact housing shells for high-density switches, or custom laser-etched barcoding for inventory tracking.
3. Transparent Commercial Capabilities
Flexible MOQ: We accommodate low-volume engineering samples for R&D validation, while maintaining the scalable production capacity required for mass manufacturing runs.
Direct Technical Support: When you contact DIMI, you communicate directly with our engineering team. Technical datasheets and custom drawings are delivered within 24 hours.
Turnaround Time: Standard samples are typically ready in 3-5 working days.
Frequently Asked Questions
Q: How does an MPO Loopback Module assist in testing?
A: It routes the signal directly from the transmitter side back to the receiver side within a single MPO port. This allows network engineers to isolate and verify the performance of the optical transceiver or network port without deploying a full-length fiber link.
Q: Can these modules be used with high-speed 400G or 800G ports?
A: Yes. By selecting the corresponding fiber count (e.g., 8-fiber or 16-fiber) and correct polarity, our loopbacks match standard QSFP-DD and OSFP transceiver interfaces.
Q: Do you provide 3D interferometer test reports?
A: Yes. We perform 3D geometric testing on the ferrules, and the corresponding test reports can be supplied along with the optical loss data upon request.
Q: Are the materials environmentally certified?
A: Yes, all DIMI MPO Loopback Test Modules are fully compliant with RoHS and REACH standards.
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