CB-M12-2CS-SMF5M=: Why Is This Cisco Industri
What Is the CB-M12-2CS-SMF5M= Cable? The �...
Understanding the GLC-FE-100FX24= Module
The GLC-FE-100FX24= is a Cisco-compatible 100BASE-FX SFP (Small Form-Factor Pluggable) transceiver designed for high-speed fiber-optic network connections. This hot-swappable module operates at 1310nm wavelength and supports 2km transmission distances over multi-mode fiber (MMF), making it suitable for enterprise LANs, data centers, and campus backbone networks.
Key Technical Specifications
- Form Factor: SFP (mini-GBIC)
- Data Rate: 100 Mbps (Fast Ethernet)
- Wavelength: 1310nm
- Fiber Type: Multi-mode (OM1/OM2)
- Connector: Duplex LC
- Max Distance: 2km
- Temperature Range: 0°C to 70°C (32°F to 158°F)
- Power Consumption: <1W
This module complies with IEEE 802.3u 100BASE-FX standards and is backward-compatible with Cisco Catalyst 2960, 3560, 3750, and 4500 series switches.
Compatibility Verification
While Cisco’s official compatibility matrix does not explicitly list the GLC-FE-100FX24=, third-party testing confirms interoperability with:
- Cisco Catalyst 2960-X/XR
- Cisco Catalyst 3850/3650
- Cisco Nexus 3048/3064
To ensure error-free operation:
- Verify switch firmware supports third-party SFPs (use
show inventoryorshow hw-module slot X transceiver idcommands). - Confirm fiber-optic cable specifications match the module’s 62.5/125μm MMF requirement.
Installation Best Practices
- Pre-Installation Checks:
- Inspect fiber connectors for dust using a microscope.
- Validate switch port configuration for 100Mbps FDX operation.
- Insertion:
- Align the SFP’s notch with the switch slot groove.
- Firmly push until the latch clicks.
- Post-Installation:
- Monitor link status via
show interfaces status. - Check optical metrics with
show interfaces transceiver details.
- Monitor link status via
Common errors like “Rx Power Low” or “Not Supported” warnings often stem from:
- Dirty fiber connectors (clean with LC-specific tools).
- Mismatched speed/duplex settings.
Addressing Core User Concerns
Q: Is the GLC-FE-100FX24= genuine Cisco hardware?
No. The GLC-FE-100FX24= is a third-party module manufactured to Cisco specifications. Cisco’s official equivalent is the GLC-FE-100FX-RGD=, which carries a higher price tag but includes TAC support.
Q: Does using this void Cisco switch warranties?
Cisco’s policy states that third-party SFPs do not automatically void warranties, but support is limited to troubleshooting steps excluding the SFP itself. Documented cases show successful warranty claims when the module meets Cisco’s DOM (Digital Optical Monitoring) requirements.
Q: How does this compare to newer 1G/10G modules?
While the GLC-FE-100FX24= is limited to 100Mbps, its lower latency (≤0.5μs) and cost efficiency make it ideal for legacy industrial networks or budget-conscious upgrades. For modern 1G/10G deployments, consider Cisco’s GLC-SX-MMD= or SFP-10G-SR=.
Procurement Considerations
For reliable sourcing, “GLC-FE-100FX24=” modules are available here. Ensure vendors provide:
- Minimum 3-year warranty
- DOM and DDM (Diagnostic Monitoring) support
- Cisco MIB compatibility
Final Perspective: Balancing Cost and Reliability
The GLC-FE-100FX24= fills a critical niche for maintaining legacy infrastructure without costly overhauls. While purists argue for OEM modules, real-world deployments prove third-party SFPs like this deliver comparable performance at 40–60% cost savings. In non-mission-critical environments—think retail POS systems or warehouse inventory networks—this module strikes a pragmatic balance. Just pair it with rigorous pre-deployment testing and quarterly DOM checks to mitigate risks.
By focusing on verifiable technical thresholds rather than brand dogma, network engineers can extend hardware lifecycles while preserving budget flexibility—a necessity in today’s hybrid network ecosystems.