It was first defined by the IEEE Maximum distance over copper cable is meters but because of its bandwidth requirements, higher-grade cables are required. The adoption of 10 Gigabit Ethernet has been more gradual than previous revisions of Ethernet : in , one million 10GbE ports were shipped, in two million ports were shipped, and in over three million ports were shipped,   with an estimated nine million ports in To implement different 10GbE physical layer standards, many interfaces consist of a standard socket into which different physical PHY layer modules may be plugged.
PHY modules are not specified in an official standards body but by multi-source agreements MSAs that can be negotiated more quickly.
When choosing a PHY module, a designer considers cost, reach, media type, power consumption, and size form factor. A single point-to-point link can have different MSA pluggable formats on either end e.
X2 and XPAK were later competing standards with smaller form factors.
SMF has a narrower core 8. MMF has a wider core 50 or The advantage of MMF is that it can be driven by a low cost Vertical-cavity surface-emitting laser VCSEL for short distances, and multi-mode connectors are cheaper and easier to terminate reliably in the field.
The advantage of SMF is that it can work over longer distances. In the This has a The OM1 has a However, in fiber optics there is no uniform color for any specific optical speed or technology with the exception being angular physical connector APC , it being an agreed color of green.
There are also active optical cables AOC. These have the optical electronics already connected eliminating the connectors between the cable and the optical module.
They are lower cost than other optical solutions because the manufacturer can match the electronics to the required length and type of cable. It delivers serialized data at a line rate of The range depends on the type of multi-mode fiber used. MMF has the advantage over SMF of having lower cost connectors; its wider core requires less mechanical precision.
DFB lasers are more expensive than VCSELs but their high power and longer wavelength allow efficient coupling into the small core of single-mode fiber over greater distances.
No mode conditioning patch cord is required for applications over OM3 or OM4.
It uses four separate laser sources operating at 3. This is explained in subclauses Its PMD sublayer is specified in Clause Downstream delivers serialized data at a line rate of Each lane carries 3. This cable is fairly rigid and considerably more costly than Category 5 or 6 UTP.
What is PoE Standard IEEE 802 3bt?
Short Direct Attach cables use a passive twin-ax cable assembly while longer ones, sometimes called active optical cable AOC use short wavelength optics. Backplane Ethernet , also known by its task force name This operates over four backplane lanes and uses the same physical layer coding defined in IEEE This operates over a single backplane lane and uses the same physical layer coding defined in IEEE Transmission characteristics are now specified to MHz.
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10 Gigabit Ethernet
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