Cat7 100m

[Melissa Hassel]

Eeeksya, 5e was good up to about 10 years ago. Its not recommended to mixed CAT versions, espeically with older versions of CAT#. I just pulled down 1 last 5e I had forgot about today. All CAT6 now for me.

My house is wired with Cat5e. I have a QNAP 10Gbe NAS in the closet, and 10Gbe on my desktop computer. When I copy files over a mixture of Cat6 and the Cat5e cables in the wall, I get around 850MB/sec (yes, MB/sec, not Mbps.)

Cat5e is rated up to 1Gbe, but any tech person knows that it can go faster than than. Linus Tech Tips says Cat5e can easily push 5Gbe. (And I go beyond that since I get close to 900MB/sec on my NAS.) So I don't quite reach 10Gbe over Cat5e, but I get pretty darn close.

CAT5e will easily do 1 GBit/s (1000BASE-T), that's what it's specified to do, up to 100m total cable length. It will also cope at full performance with 2.5GBASE-T (also up to 100m), 5GBASE-T and 10GBASE-T should still do a decent job at shorter cable runs, provided it's installed correctly and undamaged.

Today,there is an increased demand for faster internet and data transferspeeds across a wide range of commercial and industrial sectors. Cat7cableis intended to support much higher frequenciesofsignals thantheCat5e and Cat6 cables.

Cat7cables have become increasingly popular with home users across a widerange of domestic Cat7LANcablenetworks and connectivity setups, in addition to enthusiast gamingsetups.

Category7 wire has four shielded twisted copper pairs and an overall cableshield. This helps it meet the strict signal loss over distancecriteria and ensures Cat7 cable is better at protecting againstpossible degradation caused bycrosstalk and EMI.

MostCat7 Ethernet cablesare already terminated at both ends with an RJ45 jack for immediateplug-and-play use. This is the plug required by the cable sockets onany standard home router or LANcableswitch and is a standard in almost all Ethernet connectivity setups.

Cat7(a) UTP cable refers to an Unshielded Twisted Pair design. The four pairs of twisted copper wires that comprise a Cat7 Ethernet cable are sheathed only by their own interior jacketing and that of the external cable in this configuration.

Theseacronyms stand for Shielded Twisted Pair and Foiled Twisted Pair,respectively. STP and FTP indicate that the cable is provided withextra wrapping around every pair of twisted wires made of protectivefoil screening.

SFTP(Shielded Foiled Twisted Pair) or SSTP (Shielded Spliced Pair)(Shielded Screened Twisted Pair). Cat7(a) SFTP or SSTP designatestwisted pairs with a foil shield/screen between the outer cablejacketing and the inner wires, as well as an additional wrappingaround each twisted pair individually.

Thephysical makeup of the Cat7cableis similar to that of the previous Cat6 cable. Both versions employthe same twisted and sheathed four-pair cable design,which iscapable of carrying 10 Gbps Ethernet signals spanning distances up to100m.

Supposeyou need to increase your internet speed or connect additionalappliances. In that case, Cat7standardcables are the way to go, while Cat6 cables provide enough speed torun most of the connected applications and devices in your home oroffice.

Theadditional jacketing allows for higher bandwidth of up to 1000MHz.Individual pairs of wires are shielded with foil to preventelectromagnetic interference (EMI), which is critical in electricallynoisy environments like data centers. The overall braided shieldingthat wrapped around all four pairs provided additional EMIprotection. Once terminated, the Cat7Acableincludes a drain wire to ground the electricity.

Yes,many people were early adopters of Ethernet connectivity in the homehub and naturally looked to the most recent versions when replacingor upgrading older cables. For example, those planning to wire asmart home today may prefer Cat7 and Cat7a, anticipating thecontinued acceleration of home hardware and connection speeds in thecoming years.

Cat7andCat7a versions are significantly thicker, stiffer, and heavier thantheir Cat5 predecessors, which may limit your ability to route thecables neatly in areas where space is limited or very precise bendsare required.

Cat7 UTP cable The Unshielded Twisted Pair cable comprises four pairs of twisted copper wires that are sheathed only by their own interior jacketing and that of the Cat7 external ethernet cable. UTP Cat7 cable is typically the most cost-effective version of Cat7 and Cat7a Ethernet cable, with adequate EMI and signal attenuation protection.

Cat7STP cableandFTP cable.ShieldedTwistedPair and FoiledTwisted Pair havea protective foil wrapped around each pair of twisted wires inside.Again, this is a step closer to optimal protection than the previousversion.

Thiscan be done under a stereomicroscopein a suitable fixturebylaser weldingthe wire ends together. There would be no soldering, and the splicewould be staggered, with one pair spliced every inch or two. This isto reduce crosstalk.

Cat 7 cables require twisted wires to be fully shielded known as screen shielded twisted pair (SSTP) or screened foiled twisted pair (SFTP) wiring, which completely eliminates alien crosstalk while significantly improving noise resistance. Thus it allows the user to get higher possible speeds even with longer cables.

Cat8 cable, or category 8 cable, is an Ethernet cable which differs greatly from the previous cables in that it supports a frequency of up to 2 GHz (2000 MHz), and is limited to a 30-meter 2-connector channel. While Cat8 cable requires shielded cabling as well. Most importantly, Cat8 Ethernet patch cables can support a speed of 25 Gbps or even 40 Gbps. The physical appearance of Cat8 cable is similar to lower category cables and it can be terminated in RJ45 connections or non-RJ45 connections. Cat8 cable is also backward compatible with its previous versions. Therefore, there is no problem to use it with standard Cat7 connector.

On Cat6 vs Cat7 comparison, transmission frequency and cabling length are two important factors for one to consider. From the introduction above, Cat6 cable offers the performance of up to 250 MHz while Cat7 cable is rated for transmission frequency of up to 600 MHz. The maximum cabling length of Cat6 network cable is 100m with 1 Gbps while Cat7 of 100 m with 10 Gbps.

As for cable price of Cat6 vs Cat7, Cat7 cable is more expensive than Cat6 cable if they are compared under the same conditions. If you cannot afford both of them, and then Cat5e would also be a good choice for 10G network.

On Cat7 vs Cat8 comparison, transmission frequency and cabling length are also of great importance. Cat7 cable offers the performance of up to 600 MHz while Cat8 cable up to 2000 MHz. The maximum cabling length of Cat7 network cable is 100m with 10 Gbps while Cat8 of 30m with 25 Gbps or 40 Gbps.

does anyone can tell me about gigaACE maximum safest cable lenght between desk and mixrack? was tried and can confirm?

For example midas/behringer manufacturer telling 100m, but in real world not more that 50m.

so how it is with GigaACE?

All our transport protocols are Ethernet Layer 2 compliant and tested to work with 100m CAT5e (or higher) STP cables.

To the best of my knowledge AES50 (as used by Midas) uses the Physical Layer only, not Ethernet packets, which might explain different cable spec or performance.

If you use a pair of giggabit media converters even running Multimode you should achieve 550m between ends plus the length of the link ethercon cables. I think there is a note in the A&H help files about this.

The application requires use of CAT-type cabling. However, I cannot use CAT7 due to system requirements, CAT6 as maximum. The maximum cable length is only 10m, not the full 100m spec of CAT6. Will CAT6 cabling support a 917.504MHz line rate, if the cabling distance is limited to 10m?

Can you please check what the cable insertion and return loss specifications are for the CAT6 cable you are intending to use at the desired application length? Typical applications for DS90UA101-Q1 are using automotive STP or coax cable assemblies so we do not have detailed analysis on the cable parameters for CAT6 cable to compare.

I am working to get that information from cable vendor. In the meantime, can you give me a ballpark figure for acceptable insertion/return loss specifications are that will ensure decent margins, given a 917MHz line rate and 10m max cable length?

To make a determination we would need to understand the cable loss characteristic at the fundamental frequency of the forward channel signaling which is 458.752MHz in your case (38.768*28)/2. In the above spec the loss is only specified at frequency of 10MHz which doesn't give much visibility into the characteristic at the operating point for DS90UA101-Q1. Would it be possible to contact the cable vendor for more detailed information in the higher frequency range?

So it seems for 10m cable the insertion loss should only be about 5dB @ 458MHz. I think it is likely that this could be supported by DS90UA101-Q1. It would also be good to check the return loss specification from DC to 458MHz.

Today, 10GBase-T Technology is becoming more common and affordable. Low-Latency, Line-Rate 10G Copper Base-T is backward compatible with Fast Ethernet and Gigabit Ethernet and can automatically negotiate between higher and lower speed connections. Most importantly, 10GBase-T provides a cost-effective method for migrating from your current network to 10G Ethernet by utilizing your existing CAT5e/CAT6 RJ-45 short connections (up to 55m) and CAT6A/CAT7 connections (up to 100m). This reduces cabling complexity and ultimately results in significant savings for customers.

The T1700X-16TS features 12 10GBase-T RJ45 ports and four dedicated SFP+ fiber slots, which can support up to 320Gbps of combined switching bandwidth. This provides great resiliency, relieves congestion associated with bandwidth-intensive applications, and guarantees smooth data transmission.

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