Overview
This is a versatile and high-performance optical transceiver, designed as a fully compatible equivalent to the Cisco QSFP-40G-UNIV. It is engineered based on the innovative 40GBASE-UNIV standard, which offers the unique advantage of operating over both standard single-mode fiber (SMF) and multi-mode fiber (MMF). This “universal” capability eliminates the need to stock separate short-reach (SR4) and long-reach (LR4) modules, simplifying network deployment, upgrades, and inventory management.
The module uses four 10 Gbps WDM lanes multiplexed internally, transmitted over a standard duplex LC connector. It supports link lengths up to 150 meters over OM3/OM4 MMF and up to 2 kilometers over SMF, making it an exceptionally flexible solution for a wide range of data center and enterprise networking applications.
Key Features
- 100% compatible with Cisco platforms that support the QSFP-40G-UNIV module.
- Universal Operation: Works seamlessly on both Single-Mode Fiber (SMF) and Multi-Mode Fiber (OM3/OM4).
- Standard: Compliant with 40GBASE-UNIV and QSFP+ MSA.
- Data Rate: 41.2 Gbps aggregate.
- Connector: Duplex LC/UPC, simplifying cabling compared to MPO-based modules.
- Reach: Up to 150m on MMF (OM3/OM4) and 2km on SMF (OS2).
- Built-in Digital Optical Monitoring (DOM/DDM) for real-time performance tracking.
- Hot-pluggable QSFP+ form factor for serviceability without powering down equipment.
- Low power consumption and excellent EMI performance.
Applications
The QSFP-40G-UNIV compatible module is the ideal choice for:
- 40 Gigabit Ethernet links in data centers and enterprise closets.
- Data center interconnects (DCI) where fiber types may vary.
- High-density 40G aggregation and core network connections.
- Future-proofing network builds by supporting both existing MMF and future SMF cabling.
Specifications
| Parameter | Value |
|---|---|
| Compatible Part Number | QSFP-40G-UNIV |
| Form Factor | QSFP+ |
| Standard | 40GBASE-UNIV |
| Data Rate | 41.2 Gbps |
| Wavelength | 4x WDM lanes (~1310nm) |
| Max Distance | 150m (MMF) / 2km (SMF) |
| Fiber Type | SMF (OS2) / MMF (OM3, OM4) |
| Connector Type | Duplex LC/UPC |
| DOM/DDM Support | Yes |
| Operating Temperature | 0°C to 70°C (32°F to 158°F) |
Cross-Platform Compatibility
Programmed to ensure out-of-the-box compatibility with Cisco equipment, this QSFP-40G-UNIV module’s adherence to MSA (Multi-Source Agreement) standards allows it to be used in a wide array of networking hardware from other leading manufacturers.
| MANUFACTURER | EQUIVALENT PART NUMBER |
|---|---|
| Juniper | JNP-QSFP-40G-UNIV |
| Arista | QSFP-40G-UNIV |
| Dell | 407-BBPI |
| HPE | JL250A |
| MSA Generic | QSFP-40G-UNIV |
FAQ (Technical & Product Questions)
1. What is a 40GBASE-UNIV transceiver?
40GBASE-UNIV (Universal) is a type of 40G QSFP+ optical module that can operate over both multi-mode and single-mode fiber using a standard duplex LC connector. This versatility simplifies network design and reduces the number of different part numbers you need to keep in inventory, as it can replace both 40GBASE-SR4 (MMF) and 40GBASE-LR4 (SMF) modules for short to medium distances.
2. How does the QSFP-40G-UNIV work on both SMF and MMF?
The module uses four WDM (Wavelength Division Multiplexing) laser lanes around the 1310nm window. These signals are multiplexed to be sent over a single fiber strand and demultiplexed at the receiving end. The receiver’s design is sensitive enough to correctly interpret the optical signal despite the different modal dispersion properties of MMF and chromatic dispersion of SMF over the specified distances.
3. What is the maximum distance for the QSFP-40G-UNIV?
The maximum link distance depends on the fiber type used:
- On Single-Mode Fiber (OS2): up to 2 kilometers.
- On Multi-Mode Fiber (OM4/OM3): up to 150 meters.
4. Does this module use an MPO or LC connector?
The QSFP-40G-UNIV uses a Duplex LC connector. This is a significant advantage over standard 40GBASE-SR4 modules, which require MPO/MTP connectors and parallel fiber cabling. The UNIV module allows you to reuse existing duplex LC cabling infrastructure that may have been deployed for 1G/10G links.
5. Can I use this compatible QSFP-40G-UNIV module in a 100G QSFP28 port?
Yes, in many cases. Most modern 100G QSFP28 ports are backward compatible with 40G QSFP+ modules. When you insert a QSFP+ module like this one into a QSFP28 port, the port will automatically operate at a 40G data rate. Always check your switch or router documentation to confirm port compatibility.
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