StarTech.com MSA Uncoded SFP Transceiver Module - 1000BASE-BX BiDi SMF

This StarTech.com MSA Uncoded SFP Transceiver Module delivers a compact, reliable solution for Gigabit Ethernet over single‑mode fiber. Engineered for 1000BASE-BX BiDi functionality, it enables high‑quality, long‑haul links with minimal fiber use, making it ideal for campus networks, data centers, and edge deployments. The module is designed, programmed and rigorously tested to work with 1000BASE-BX compatible MSA switches and routers, ensuring seamless interoperability across a wide ecosystem of vendors. As a downstream SFP, it pairs with StarTech.com's SFP1000BXUST to complete a BiDi fiber pair, simplifying network layouts while maintaining superior performance, energy efficiency, and hot‑swappability in modern infrastructure.

• 1 Gbps Gigabit Ethernet over BiDi SMF: The SFP1000BXDST operates as a BiDi (bidirectional) transceiver on single‑mode fiber, using distinct transmit and receive wavelengths to carry duplex traffic over one fiber strand. This approach reduces fiber count, simplifies cabling, and helps you maximize fiber capacity without compromising data rates.
• MSA Compliant for Broad Interoperability: Built to MSA specifications, this transceiver is compatible with a wide range of 1000BASE-BX capable switches and routers. Its standardized form factor and electrical interface enable straightforward integration into existing networks and across mixed vendor environments.
• Long‑Reach Capability up to 10 km: The module supports links extending up to 10 kilometers (approximately 6.2 miles) on single‑mode fiber, unlocking campus backbones and data‑center interconnects with minimal infrastructure changes. This reach is achieved without the need for repeaters or signal boosters, preserving network simplicity and cost efficiency.
• Designed to Pair with SFP1000BXUST: When used as the downstream component, this SFP module pairs with StarTech.com’s upstream SFP to form a complete 1000BASE‑BX BiDi solution. This pairing enables downstream/upstream separation on the same fiber path, offering flexible deployment options for fiber‑constrained environments.
• Plug‑and‑Play, Hot‑Swappable Convenience: As a hot‑swappable SFP module, it can be installed or swapped without powering down compatible devices, minimizing downtime during upgrades, maintenance, and scaling. Its small form factor fits compact network devices, switches, and routers, delivering a low‑drama upgrade path for growing networks.

Technical Details of StarTech.com MSA Uncoded SFP Transceiver Module - 1000BASE-BX - 1GbE BiDi SMF

• Form Factor: SFP Transceiver
• Technology: 1000BASE-BX BiDi over SMF
• Wavelengths (Tx/Rx): 1310 nm / 1550 nm BiDi pair (Tx on 1310 nm; Rx on 1550 nm)
• Distance: Up to 10 km over single‑mode fiber
• Compatibility: MSA compliant; designed to work with 1000BASE-BX switches and routers
• Pairing: Optimized for use with StarTech.com SFP1000BXUST downstream module to enable complete BiDi fiber links

How to install StarTech.com MSA Uncoded SFP Transceiver Module

• Power down the host device if required by your operational policies, then locate an available SFP slot on the network switch or router.
• Insert the SFP transceiver into the empty SFP slot until it seats securely and you hear a click. Ensure the module is fully seated to avoid intermittent link issues.
• Connect your single‑mode BiDi fiber patch cable to the transceiver’s fiber port, following the network design for downstream or upstream direction as applicable. Use the correct fiber pair and confirm cable cleanliness and fiber type (single‑mode) to prevent signal loss.
• Power up the device and monitor the LED indicators on both ends of the link. A steady link light typically indicates a healthy connection and negotiated speed of 1000 Mbps. If the link does not come up, verify fiber polarity, connector cleanliness, and port configuration.
• Configure the network device for 1000BASE‑BX operation if required by the vendor. Some switches/routers auto‑detect SFP modules, while others may require explicit port settings to enable BiDi fiber mode and the correct downstream/upstream pairing.

Frequently asked questions

• Q: What is 1000BASE-BX BiDi? A: 1000BASE-BX BiDi is a bidirectional Gigabit Ethernet standard that uses different wavelengths for transmit and receive on a single fiber, enabling full‑duplex communication over one fiber strand. This reduces fiber counts and simplifies fiber management in long‑reach links.
• Q: How far can this SFP transceiver reach? A: The module supports links up to 10 kilometers over single‑mode fiber, making it suitable for campus backbones, data‑center interconnects, and remote site connections where fiber runs are extended but still within typical BiDi design constraints.
• Q: Is this module compatible with non‑StarTech equipment? A: Yes. The transceiver is designed to be MSA compliant, ensuring broad interoperability with 1000BASE‑BX capable switches and routers from multiple vendors that adhere to the MSA standard.
• Q: Do I need a matching upstream module to use this downstream module? A: This module is intended to pair with StarTech.com’s SFP1000BXUST downstream counterpart to achieve a complete BiDi fiber link. For full BiDi functionality, verify the upstream/downstream pairing requirements of your network gear and plan accordingly.
• Q: Can I replace this SFP module without powering down my equipment? A: In many cases, SFP modules are hot‑swappable in compatible devices, allowing you to replace or upgrade modules without powering down the system. Always follow your equipment manufacturer’s service guidelines when performing hardware changes.
• Q: What cabling is required? A: You will need single‑mode fiber cabling designed for BiDi operation with the appropriate LC connectors in most deployments. Ensure the fiber is clean, properly terminated, and compatible with the BiDi wavelengths used by the transceiver pair.