dear vishwa, there are no SFP+ to RJ45 cables, but you can purchase SFP+ to SFP+ cables, and use these cables to connect a Roach2 to another Roach2, or to a 10Gbit SFP+ switch, or a 10Gbit SFP+ network interface card in a computer.
these SFP+ cables are made by several dozen vendors. for short cables (< about 10 meters) copper cables are fine, but i recommend heavier gauge cables (26 AWG) as they don't cost much more ($30 instead of $20). for longer cables (up to 80 km), you can purchase SFP+ fiber transceivers ($28 for 100 meter multimode fiber transceivers, $150 for 40 km single mode transceiver). see for example fiberstore.com best wishes, dan On Mon, May 4, 2015 at 7:01 AM, Vishwa Seneviratne <mp...@zips.uakron.edu> wrote: > Hi All, > > We are new to using ROACH boards and currently we need to to configure the > network cards (Mezzanine) such that we can transmit data at 10G between two > ROACH2 boards. > We need to know the following, > 1. What is the recmmended SFP+ tranceiver (copper) with RJ45 interface to > be used in a mezzanine card and compatible with ROACH2? > 2. Where can we buy it? > 3. Can we use an ordinary copper cable (Cat6e/Cat7) or do we have to use a > specific Direct-attachched copper cable for this purpose? If so what do you > recommend? > > Thank you > Vishwa > >
