CB-M12-4LC-MMF3M=: What Is This Cisco Cable U
Core Design and Functionality The CB-M12-4LC-MMF3...
Product Overview and Primary Use
The CBL-SCAP-C240M6= is a Cisco-certified single-mode fiber (SMF) cable engineered for high-capacity storage and data center networks. With a 240-meter reach and OS2 fiber construction, it enables low-latency, high-bandwidth connectivity between Cisco storage systems and switches, ideal for environments prioritizing data integrity and scalability.
Key Technical Specifications
- Cable Type: OS2 single-mode fiber (1310nm/1550nm wavelengths).
- Length: 240 meters (optimized for cross-building or campus deployments).
- Connectors: Duplex LC/LC termination for seamless integration with Cisco transceivers.
- Data Rates: Supports 16G/32G Fibre Channel and 25G/100G Ethernet protocols.
- Compatibility: Cisco MDS 9700/9500 switches, Nexus 5600/9300 series, and UCS storage arrays.
Core Deployment Scenarios
- Enterprise SANs: Connects storage arrays to fabric switches in large-scale storage area networks (SANs).
- Cloud Backup Solutions: Facilitates high-speed replication between primary and backup data centers.
- Media Production Networks: Ensures rapid transfer of high-resolution video/audio files.
Critical Compatibility Requirements
- Switch Validation: Confirm compatibility with Cisco MDS 9148S or Nexus 9336C-FX2 switches running NX-OS 8.x+.
- Transceiver Pairing: Use Cisco DS-SFP-FC-16G-SW or QSFP-100G-LR4 modules for end-to-end signal integrity.
- Firmware Updates: Ensure storage controllers and switches run Cisco’s latest recommended firmware.
Addressing Key User Concerns
Q: Can this cable support both Fibre Channel and Ethernet simultaneously?
A: No—the CBL-SCAP-C240M6= is protocol-specific. Configure transceivers for either Fibre Channel or Ethernet.
Q: Is the 240-meter length suitable for metro-area links?
A: Yes, but distances beyond 500 meters may require signal amplification or DWDM solutions.
Q: Does it require special handling due to fiber brittleness?
A: No—OS2 cables are durable, but adhere to Cisco’s bend radius guidelines (≥30mm) to prevent signal loss.
Why Authenticity Matters: Sourcing from itmall.sale
Generic SMF cables often lack the polished connectors and attenuation tolerances required for 100G/32G performance. For guaranteed reliability, purchase the CBL-SCAP-C240M6= from [“CBL-SCAP-C240M6=” link to (https://itmall.sale/product-category/cisco/), which provides Cisco-certified cables with full warranty coverage.
Performance Comparison: Cisco vs. Third-Party Cables
| Feature | CBL-SCAP-C240M6= | Generic OS2 Cable |
|---|---|---|
| Latency at 32G Fibre Channel | <1 μs | 2–4 μs (variable) |
| Cisco TAC Support | Full | None |
| Maximum Bend Radius | 30mm | 40mm (higher loss risk) |
Engineer’s Perspective: The True Cost of Compromise
In storage networks, even minor signal degradation can cripple throughput for latency-sensitive applications like real-time analytics. While third-party cables might cut costs by 15–20%, their inconsistent performance often leads to costly outages and rework. For enterprises building scalable, future-proof infrastructures, the CBL-SCAP-C240M6= isn’t just a component—it’s a strategic investment in operational continuity.