hi rick,

there are no cx4-sfp+ cables, as there's a format conversion
(8/10 encoding to 64/66) so you need electronics.

you can purchase single cx4-sfp+ adapters,
made by ~three different companies, $1Kish.

there are less expensive CX4 fiber cables than the one you received a quote
on.
details on various cable vendors are on the casper web site.
but as far as i know, the fiber cables all  need power through the
connector.
we might have some you can try out.  perhaps you could open the
connector, and solder a wire, and feed 12 volts in.


best wishes,

dan







On Thu, Oct 4, 2012 at 3:07 PM, rick raffanti <[email protected]> wrote:

>  Hi Casperions,
> See below from Anton Tremsin at SSL.  We are using the ROACH-I and have no
> need for the power of ROACH-2.  So we're stuck with CX4 cables, and a CX4
> NIC.  Are there any other ways to go here?  I saw a posting here about a
> 4-channel CX4-to-SPF+ box, but that's big and unwieldy and power hungry.
> Is it possible to go CX4 to SFP+ in the cable and then buy an SFP+ NIC?  Or
> something like that?
> Thanks,
> Rick Raffanti
>
>
> -------- Original Message --------  Subject: 10Gb fiberoptic cable  Date: Thu,
> 04 Oct 2012 14:21:10 -0700  From: Anton Tremsin 
> <[email protected]><[email protected]>  To:
> Rick Raffanti <[email protected]> <[email protected]>
>
> Hi Rick,
>
> I found the company which can sell us the 10Gb fiberoptic cable, exactly
> the same as I have now.  I went through a long chain of very helpful
> people and in the end here it is.
>
> If anyone at Casper need that one we can share the access to those guys.
> They did not ask for the minimum order, but their price is quite a bit
> higher than what we had before. Since we do not have choice and do need
> those I guess we should buy a couple of them before they become obsolete
> in that company.
>
> Do you think they will keep active the network cards with CX4 (this new
> version T420)? Or we will have to deal with the conversion to SFP(?)
> fiberoptic on one side and a converter (quite expensive and bulky) on
> Roach side?
>
>
>
> Anton
>
>
>
>
>
>

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