Quick Answer: What replaced SFP-GLX/LCI-10E?
Discontinued: SFP-GLX/LCI-10E | Replacement: SFP-GSM-20K
Why B+B SMARTWORX Discontinued the SFP-GLX/LCI-10E
The B+B SMARTWORX SFP-GLX/LCI-10E is fully discontinued and marked obsolete by major distributors. Available channel data shows that SFP-GLX/LCI-10E is no longer available for purchase, with distributor listings identifying it as obsolete or end-of-life. For buyers supporting installed fiber networks, that means the practical outcome is clear: SFP-GLX/LCI-10E should be treated as unavailable for new procurement.
It is important to separate confirmed facts from assumptions. The reason for the discontinuation of SFP-GLX/LCI-10E has not been stated in the available sources. There is no published notice in the provided research that ties the end of sale to a component shortage, product refresh, standards change, or regulatory issue. Likewise, no formal end-of-life date has been announced for SFP-GLX/LCI-10E in the research data.
There is also a qualification procurement teams should note: while SFP-GSM-20K is being presented here as the replacement option for SFP-GLX/LCI-10E, the available research does not confirm SFP-GSM-20K as an official manufacturer-designated successor. In other words, SFP-GLX/LCI-10E is definitely discontinued, but buyers should verify fit, function, and interoperability requirements before standardizing on SFP-GSM-20K for a migration plan.
The confirmed technical profile for SFP-GLX/LCI-10E in the research is limited but useful. SFP-GLX/LCI-10E is identified as a 1000Base-LX single-mode SFP with 1310 nm wavelength, 10 km reach, Duplex LC interface, and an operating temperature range of -40 to +85°C. That baseline should guide any replacement review when comparing SFP-GLX/LCI-10E to SFP-GSM-20K.
What's New in the SFP-GSM-20K
Replacement positioning for SFP-GLX/LCI-10E buyers
For organizations searching for a path forward after the discontinuation of SFP-GLX/LCI-10E, SFP-GSM-20K is the part number to review. If your team has ongoing demand for B+B SMARTWORX fiber modules formerly covered by SFP-GLX/LCI-10E, the immediate next step is to evaluate SFP-GSM-20K against your existing link budget, connector type, fiber plant, and switch compatibility requirements.
What is confirmed versus unconfirmed
The key planning issue is data availability. The research confirms several specifications for SFP-GLX/LCI-10E, but it does not provide technical specifications for SFP-GSM-20K. Because of that, there is not enough verified information to state what is new in SFP-GSM-20K at the specification level. No source in the provided findings confirms speed, wavelength, distance, connector type, or temperature range for SFP-GSM-20K.
Likely migration focus areas
Even without full published comparison data, experienced IT buyers will want to validate the same core items when moving from SFP-GLX/LCI-10E to SFP-GSM-20K:
- Network speed and transceiver standard compatibility
- Single-mode versus multimode fiber requirements
- Optical wavelength and maximum supported distance
- Connector type, especially Duplex LC continuity
- Operating temperature range for industrial deployments
- Interoperability with installed B+B SMARTWORX or third-party equipment
That process is especially important because SFP-GLX/LCI-10E is known to support 1000Base-LX single-mode links at 1310 nm up to 10 km, while equivalent verified details for SFP-GSM-20K are not included in the research set.
At-a-Glance Comparison
| Feature | SFP-GLX/LCI-10E | SFP-GSM-20K |
|---|---|---|
| Manufacturer | B+B SMARTWORX | B+B SMARTWORX |
| Current status | Fully discontinued / obsolete | Available as replacement option to evaluate |
| Official replacement confirmed in research | No official replacement listed | Not confirmed by provided sources as official successor |
| Form factor | SFP | Not provided in research |
| Ethernet standard | 1000Base-LX | Not provided in research |
| Fiber type | Single-mode | Not provided in research |
| Wavelength | 1310 nm | Not provided in research |
| Reach | 10 km | Not provided in research |
| Connector | Duplex LC | Not provided in research |
| Operating temperature | -40 to +85°C | Not provided in research |
| EOL date announced | No | Not applicable |
Upgrade Checklist
- Identify every deployed SFP-GLX/LCI-10E across switches, media converters, and spares inventory so you know the total migration scope.
- Document current link requirements for each SFP-GLX/LCI-10E connection, including fiber type, distance, connector style, and temperature exposure.
- Review SFP-GSM-20K carefully before purchase because the provided research does not confirm it as the official replacement for SFP-GLX/LCI-10E.
- Validate interoperability with the exact B+B SMARTWORX hardware or third-party platforms in your environment.
- Check optical compatibility against the known SFP-GLX/LCI-10E baseline of 1000Base-LX, single-mode, 1310 nm, 10 km, and Duplex LC.
- Confirm environmental fit if your current SFP-GLX/LCI-10E installations depend on the -40 to +85°C industrial temperature range.
- Test before broad rollout by qualifying SFP-GSM-20K in a pilot link or lab setup.
- Plan for future sourcing since SFP-GLX/LCI-10E is fully discontinued and should not be relied on for ongoing procurement.
Bottom Line
SFP-GLX/LCI-10E from B+B SMARTWORX is fully discontinued, obsolete, and no longer available for purchase through major distributors. SFP-GSM-20K is the replacement part number to review, but the provided research does not confirm it as the official manufacturer successor and does not include enough technical data for a full side-by-side specification comparison.
For teams replacing SFP-GLX/LCI-10E, the safest approach is to treat SFP-GSM-20K as a candidate replacement and verify compatibility against the known SFP-GLX/LCI-10E requirements before deployment.
Ready to switch? Shop SFP-GSM-20K →
