[TROUVÉ] Câble Cisco AOC orange

[Fredo31]

Hello
J'ai besoin d'un cable DAC de préférence le Cisco AOC orange, petite longueur.

Si vous avez ça qui traine dans un carton... faites moi une offre !



merci

(édité pour le titre)

[mishelinka]

Salut, c’est certainement un détail, mais il me semble que le fameux câble CISCO orange (que je possède - en 2M car impossible de trouver plus court) n’est pas un DAC (pour Direct Attach Cable, qui est en général en cuivre), mais bel et bien une fibre optique… 

[bbill]

J'ai besoin d'un cable DAC 

prendre le câble DAC FS utilisé notamment par Taiko (il se trouve en direct chez FS)
https://taikoaudio.com/taiko-2020/produc...dac-cable/

[Audiodémat]

J'en ai un en vente ici : https://forum-hifi.fr/thread-37928-post-...#pid854728

[mishelinka]

Il est moins cher en « direct » chez FS (le câble DAC): https://www.fs.com/fr/products/21269.htm...id=4417449 

[bbill]

absolument !

et l'explication technique :
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"The ethernet cabling system that we use in our homes is designed to transport large amounts of data at high speeds over an as economical as possible cabling system. For this to work, block coding and error correction enable data to pass through a cheap (economical) cable and connector system without error. The block encoding requires reading the data block into the transmitter, running a mathematical function on the data, and sending the encoded data over the link. The opposite happens at the receiving end, and error correction is applied.

To provide an indication of the processing overhead, this is standardized to take 2.6 microseconds, where the actual data transfer latency is 0.1 microseconds for fiber and 0.3 microseconds for copper (or times 8.6 for copper and times 26 for fiber). But more important is the increase in power consumption which is between 5 and 25 times higher for RJ45 over SFP (for EACH port).

At first glance, SFP fiber appears to be the ideal solution. Unfortunately, it is not as straightforward as an SFP fiber module, which converts an electrical signal into an optical signal and uses a substantial amount of power. A single fiber SFP module consumes more power than our entire switch design, and the additional noise this generates is multiple times higher than that of the switch itself.

Inside the system, there is an accumulation of several types of noise:
Processing noise
Noise generated by power consumption (and associated heat)
Interface noise
We have managed to achieve the absolute lowest possible noise by minimizing these 3 by designing a Network Card and Switch by producing the lowest possible noise, consuming the lowest possible power, and with the least possible processing overhead around using a so-called DAC SFP cable between Network card and Switch."
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[mishelinka]

Pour la fibre CISCO, bon tarif ici : https://www.ebay.fr/itm/256532872667?mkc...media=COPY 

[poprock]

Il est moins cher en « direct » chez FS (le câble DAC): https://www.fs.com/fr/products/21269.htm...id=4417449 

NON, il ne faut pas prendre un câble "adaptable" mis l'original orange

[mishelinka]

Patrice, mon lien pointait vers le câble DAC de chez FS, nullement vers la fibre CISCO orange, que j’ai indiqué ensuite ici: https://www.ebay.fr/itm/256532872667?mkc...media=COPY 

[poprock]

Oui j'ai bien compris Michel, mais il faut éviter le câble DAC de chez FS. C'est loin de valoir l'original