SFP+ Direct Attach: 10G; copper cable for next-generation DCs

R&M introduces new line of small-form high speed copper assemblies to meet today’s data, energy and environmental needs.

  • Tuesday, 8th April 2014 Posted 10 years ago in by Phil Alsop

Data centres increasingly need higher speeds, design flexibility and a cost-effective migration path. A new family of SFP+ Direct Attach Copper Cables (DAC), also known as Twinax cables, has been designed to perfectly meet these requirements.


SFP+ direct attach is the optimum choice for highly cost-effective networking connectivity within a single rack and between adjacent racks. The cables meet application requirements for a high density cabling interconnect system capable of 10G per channel transmission rates and are ideal for point-to-point Top of Rack (ToR) applications.


The full portfolio includes eight cable lengths, from half a meter to seven meters. SFP+ assemblies are offered in different wire gauges (AWG) depending on length.


Hot-pluggable, ‘green’ and easy to identify
The cables have been designed with practical installation and network management in mind: they can be removed and replaced without powering off the switch or server. A programmed EEPROM signature allows the host to differentiate between a copper cable assembly and a fibre optic module and provides length and serial number data for traceability, which can lead to considerable time and cost savings when patching and re-patching systems. Thanks to the low power consumption, the passive copper cable can make a significant contribution to energy savings and sustainability.


Swiss precision & broad compatibility
The SFP+ connectors meet R&M’s demanding quality standards for external operating conditions, including temperature, humidity and EMI interference. By design form factor and optical/electrical connections of all cables’ are fully compatible with the SFP Multi-Source Agreement. R&M SFP+ DAC assemblies are compliant to all equipment with MSA compliant ports according to SFF-8431, SFF-8432, SFF-8472, SFF-8083.