Cisco ONS-SI-155-L1= Single-Mode Transceiver:
Functional Overview and Deployment Context ...
Function and Design Overview
The CBL-R3BS3-C240M6L= is a Cisco-specific single-mode fiber (SMF) cable tailored for long-haul, high-bandwidth applications in enterprise and data center networks. With a 240-meter length and OS2 fiber construction, it supports ultra-low latency and high-speed data transfer over extended distances, making it ideal for mission-critical infrastructures.
Core Technical Specifications
- Cable Type: OS2 single-mode fiber (1310nm/1550nm wavelengths).
- Length: 240 meters (optimized for cross-building or campus links).
- Connectors: Duplex LC/LC termination for compatibility with Cisco transceivers.
- Data Rates: Supports 10G/25G/100G Ethernet and 16G/32G Fibre Channel.
- Compliance: Cisco MDS 9000, Nexus 5600/9300, and UCS Director ecosystem.
Primary Deployment Scenarios
- Campus Network Backbones: Connects distributed buildings with low signal attenuation.
- Cloud Storage Replication: Enables synchronous data mirroring between geographically separate data centers.
- Media Streaming Hubs: Reduces latency for high-volume content delivery networks (CDNs).
Critical Compatibility Checks
Before deploying the CBL-R3BS3-C240M6L=:
- Switch Validation: Confirm compatibility with Cisco Nexus 9336C-FX2 or MDS 9148T switches.
- Transceiver Pairing: Use Cisco SFP-10G-LR or QSFP-100G-LR4 modules to avoid protocol mismatches.
- Firmware Requirements: Ensure switches run NX-OS 7.0(3)I7(1) or later for 100G support.
Addressing Common User Questions
Q: Can this cable be used for mixed Fibre Channel and Ethernet traffic?
A: No—it supports either protocol based on the transceiver configuration (e.g., Fibre Channel SFP+ vs. Ethernet QSFP28).
Q: Is the 240-meter length sufficient for metro-area connectivity?
A: Depends on the use case. For standalone links, yes. For multi-kilometer metro setups, consider DWDM/CWDM solutions.
Q: Does it require special grounding or shielding?
A: No—OS2 fiber is immune to EMI, unlike copper cables, making it ideal for electrically noisy environments.
Why Purchase from itmall.sale?
Third-party cables often lack precision polishing or Cisco’s attenuation tolerances, risking signal loss at 100G speeds. For guaranteed performance, source the CBL-R3BS3-C240M6L= from [“CBL-R3BS3-C240M6L=” link to (https://itmall.sale/product-category/cisco/), which offers Cisco-certified cables with end-to-end testing.
Performance Comparison: Cisco vs. Generic SMF Cables
| Criteria | CBL-R3BS3-C240M6L= | Unbranded OS2 Cable |
|---|---|---|
| Attenuation at 1550nm | ≤0.22 dB/km | ≤0.35 dB/km (typical) |
| Cisco TAC Support | Full | None |
| Bend Radius Handling | Tight (10mm) | Relaxed (15mm+ risk) |
Engineer’s Perspective: Balancing Cost and Performance
In high-stakes networks, compromising on cable quality is like using a frayed lifeline—it works until it doesn’t. The CBL-R3BS3-C240M6L= might carry a premium over generic SMF cables, but its engineering precision ensures predictable performance under load. For enterprises scaling AI/ML or real-time analytics, “good enough” isn’t an option—certified reliability is the only path forward.