Overview
This is a ruggedized, industrial-grade BiDirectional (BiDi) SFP+ transceiver engineered for 100% compatibility with the Cisco SFP-10G-BX20D-I. It is purpose-built to operate reliably in harsh industrial environments with a wide operating temperature range of -40°C to 85°C (-40°F to 185°F).
This module revolutionizes fiber cabling by using Wave Division Multiplexing (WDM) technology to transmit and receive 10Gbps data over a single strand of single-mode fiber (SMF), effectively doubling the capacity of existing fiber infrastructure. As a Downstream (D) module, it transmits on the 1330nm wavelength and receives on the 1270nm wavelength. To complete a link, it must be paired with an upstream module (SFP-10G-BX20U-I) at the opposite end of the fiber link, enabling communication up to 20 kilometers.
Key Features
- Fully compatible with Cisco devices that specify the SFP-10G-BX20D-I part number.
- Industrial Grade: Hardened components support an operating temperature range of -40°C to 85°C.
- BiDirectional Operation: Transmits and receives data on a single fiber strand, reducing cabling costs and complexity.
- Downstream Module: Transmits (TX) at 1330nm and Receives (RX) at 1270nm.
- Pairing Required: Must be matched with an upstream module (SFP-10G-BX20U-I) for a functional link.
- Achieves a maximum link distance of 20km over Single-Mode Fiber (SMF).
- Features a Simplex LC connector.
- Hot-pluggable SFP+ form factor for installation without network interruption.
- Built-in Digital Optical Monitoring (DOM/DDM) for real-time performance tracking.
Applications
The rugged, single-fiber design of the SFP-10G-BX20D-I compatible module makes it ideal for:
- Networks in environments with extreme temperatures like factory floors, outdoor enclosures, and substations.
- Upgrading existing 1G BiDi links to 10G without laying new fiber.
- Fiber-constrained environments where new cable runs are impractical or expensive.
- Industrial Ethernet, mobile backhaul, and carrier access networks.
- Extending enterprise networks over long distances using a single fiber.
Specifications
| Parameter | Value |
|---|---|
| Compatible Part Number | SFP-10G-BX20D-I |
| Form Factor | SFP+ |
| Standard | 10GBASE-BX20-D |
| Data Rate | 10.3125 Gbps |
| Wavelength | TX: 1330nm / RX: 1270nm |
| Max Distance | 20km |
| Fiber Type | Single-Mode Fiber (SMF, OS2) |
| Connector Type | Simplex LC/UPC |
| DOM/DDM Support | Yes |
| Operating Temperature | -40°C to 85°C (-40°F to 185°F) |
Cross-Platform Compatibility
This module is programmed to be recognized as a genuine Cisco SFP-10G-BX20D-I in compatible industrial equipment. Its adherence to the SFP+ MSA also allows it to be used in a variety of other manufacturers’ devices that support 10G BiDi industrial optics.
| MANUFACTURER | EQUIVALENT PART NUMBER |
|---|---|
| Juniper | SFPP-10GE-BXD-I |
| Arista | SFP-10G-BXD-20-I |
| MSA Generic | SFP-10G-BX-D20-I |
| Extreme Networks | 10GB-BX20-D-SFPP-I |
Advantages
This industrial BiDi transceiver offers a dual advantage: unmatched environmental resilience and significant cabling savings. It provides the same robust performance as OEM industrial parts at a much lower cost, while its single-fiber operation can cut your fiber optic cabling needs in half for new deployments or double the connection density on existing fiber plants.
FAQ (Technical & Product Questions)
1. What is an industrial BiDi transceiver?
It’s a module that combines two key features. “Industrial” means it’s built to withstand extreme temperatures (-40°C to 85°C). “BiDi” (BiDirectional) means it uses two different wavelengths to send and receive data over a single strand of fiber, unlike standard transceivers that need one fiber for sending and another for receiving.
2. Does this SFP-10G-BX20D-I module work on its own?
No, it will not. This is a Downstream (“D”) module that transmits at 1330nm and receives at 1270nm. To create a working link, it must be paired with an opposite Upstream (“U”) module at the other end of the fiber, such as the SFP-10G-BX20U-I, which transmits at 1270nm and receives at 1330nm.
3. What kind of fiber cable do I need?
You need a single-mode fiber (SMF) patch cable that is terminated with a Simplex LC connector on each end.
4. Can I pair this industrial module with a commercial-grade BiDi module?
While a link might establish in a controlled environment, it is strongly discouraged. For a link to be truly industrial-rated and reliable across the full temperature range, both the upstream and downstream transceivers at both ends of the fiber must be industrial-grade.
5. What does the “BX20-D” in the part number mean?
This code breaks down as: ‘B’ for BiDirectional, ‘X’ for the 10 Gigabit standard, ’20’ for its maximum reach of 20 kilometers, and ‘D’ to signify it as the Downstream module in a BiDi pair.
6. Is this module compatible with standard dual-fiber SFP+ modules like the SFP-10G-LR-I?
No. BiDi transceivers operate on a single fiber using specific wavelengths and are not interoperable with standard dual-fiber (duplex) transceivers.
7. Will using this compatible module void my industrial switch’s warranty?
No. Laws like the Magnuson-Moss Warranty Act protect consumers from being forced to buy only OEM parts. Our transceivers are built to MSA standards to ensure they are fully compatible and will not cause harm to your equipment.
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