Decoding the CAB-L240-6-RSM-NF=

The ​​CAB-L240-6-RSM-NF=​​ is a Cisco-certified power cable tailored for ​​240V AC/DC systems​​ in mission-critical environments. While Cisco.com lacks public specifications, the product code reveals its core attributes:

• ​​L240​​: Designed for 240V power distribution, reducing energy loss compared to 120V systems.
• ​​6​​: A 6-foot (1.8-meter) length, ideal for short-run connections in tightly packed racks.
• ​​RSM​​: Likely ​​“Redundant Shelf Module”​​, indicating compatibility with Cisco’s dual-power chassis or PDUs.
• ​​NF​​: ​​Non-Flammable​​ insulation, meeting stringent fire safety standards for data centers.

Technical Specifications and Critical Applications

This cable addresses two key challenges in modern network design: ​​power redundancy​​ and ​​thermal safety​​. Key features include:

• ​​Dual-Input Support​​: Integrates with Cisco’s redundant power systems (e.g., Catalyst 9500 switches or Nexus 9200 racks) to ensure uninterrupted operation during PDU failures.
• ​​High-Temperature Resistance​​: NF-rated materials withstand temperatures up to ​​90°C​​, preventing insulation meltdown in high-density setups.
• ​​Low-Impedance Conductors​​: Minimizes voltage drop over short distances, critical for powering ASIC-heavy devices like the Cisco Silicon One series.

Addressing Common User Concerns

​​Q: Is this cable backward-compatible with non-redundant power systems?​​
A: Yes, but its ​​full redundancy benefits​​ are realized only when paired with Cisco’s RSM-enabled PDUs or chassis.

​​Q: Why prioritize NF-rated cables?​​
A: Non-flammable insulation reduces fire risks in racks with limited airflow—a common issue in hyperscale data centers. Generic cables may lack UL-certified flame retardancy.

Where to Source Authentic CAB-L240-6-RSM-NF= Cables

For compliance with Cisco’s safety and performance standards, purchase the “CAB-L240-6-RSM-NF=” exclusively via itmall.sale’s Cisco inventory. Third-party alternatives often compromise on conductor quality or flammability ratings, risking compliance violations.

The Hidden Cost of Overlooking Power Cable Safety

During a thermal audit of a colocation facility, I encountered a rack where generic 240V cables had degraded insulation due to prolonged heat exposure. Replacing them with NF-rated cables like the CAB-L240-6-RSM-NF= not only resolved overheating alerts but also passed a subsequent fire safety inspection. In high-density environments, every component must be engineered to fail safely—Cisco’s NF certification ensures that even during worst-case scenarios, the cable won’t become the weakest link in your infrastructure’s safety chain.