DAC cable CBO Alcatel-Lucent OS6560-CBL-40 40Gbps, 1 m

Direct attach copper (DAC) cable CBO Alcatel‑Lucent OS6560-CBL-40 is a 1 m passive twinax assembly designed for 40Gbps short‑reach connections. It provides a low-latency, low-power physical link between compatible switches, routers and network interface cards, enabling straightforward, plug-and-play connectivity in dense rack environments and data centre topologies.

Advantages

This DAC cable supports 40Gbps data rates over a 1 metre length while operating passively without external power, which reduces energy consumption and simplifies deployment. Its fixed‑length twinax design delivers stable signal integrity and low latency for high-throughput links. The cable is compatible with common module interfaces for direct attach use, offering a compact solution for short patching and uplink scenarios within racks and across adjacent racks.

Suitable for

• Data centre switch-to-switch uplinks and spine-to-leaf connections
• Server-to-switch connections in high-density racks
• Short-reach interconnects inside the same rack or adjacent racks
• High-bandwidth links for virtualization, storage access and clustering

Key specifications

• Data rate: 40 Gbps
• Length: 1 metre
• Cable type: Passive twinax (direct attach copper)
• Latency: Low-latency physical link suitable for high-throughput applications
• Operation: Passive, no external power required
• Connector style: Fixed direct-attach ends for compatible 40Gb interfaces

How to use

Connect one end of the DAC cable to the 40Gb interface on the source device and the other end to the corresponding 40Gb port on the destination device. The plug-and-play design requires no additional configuration at the physical layer; the devices will negotiate link parameters automatically. Ensure both ports are rated for 40Gb operation and that firmware or driver support is present on network devices. Route the cable to avoid sharp bends and maintain recommended bend radius for twinax assemblies.

Recommendations

Use this 1 m passive DAC cable for short-distance, high-bandwidth links where low latency and minimal power consumption are priorities. Avoid extending beyond the specified length and keep the cable within the same rack or between adjacent racks to maintain signal performance. Verify hardware compatibility with vendor port specifications before deployment.