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Joined: Jan 2005
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Moderator-Vertical, Vodavi, 1A2, Outside Wire
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Moderator-Vertical, Vodavi, 1A2, Outside Wire
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That along with the fact that Commscope's 4-pair CAT3 cable is now CAT5 cable that fails certification testing. I've noticed that with some other manufacturers, Paul. I suspect that this is cable that failed factory testing, the process was set up incorrectly, or anything else that would cause it to not meet specs. Since CAT5 is the new norm, I suspect that they just sell their products that fail to meet this spec as CAT3. Personally, I hate working with CAT5 or above for voice use, but the reality is, voice and data are now the same by industry standards, so we have to adapt. CAT4 and above wasn't ever meant to be used with voice systems. There aren't a lot of suppliers that stock CAT3 cable in the four pair size anymore, at least not in large quantities. A few of our suppliers offer to sell us CAT5E for the same price as CAT3 just to avoid the hassle of a special order from the factory.
Ed Vaughn, MBSWWYPBX
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Joined: Dec 2005
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Spam Hunter
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Hey Ed! The failed CAT5 cables are fine if termination is on 110, BIX or Krone hardware. It becomes a bit of a hassle when punching the stuff down on 66 blocks. I still have some boxes of old style Systimax CAT3 cables...as well as most of the AT&T shielded 2-pair that I bought from you years ago. I'm going to religate them to reserve status....not that I'm doing much in the way of cabling at this point.
I Love FEATURE 00
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Very interesting, the Remee cable that certified as Cat 6 or better at around 225 feet bears the ETL mark and the Syston that barely cracked 5e at 104 feet carries the UL plus hologram stamp. Maybe Just a bad box? The Syston stuff is definitely off shore stuff according to my distributor and Remee is US made.
John 807
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Joined: Dec 2002
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ADI sells Remee and Honeywell brand cable - I have used both without any issues. Just did a small Cat 6 plenum job, all Honeywell cable and ICC jacks/panel.
Jeff Moss Moss Communications Computer Repair-Networking-Cabling MBSWWYPBX, JGAE
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Joined: Feb 2005
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Very interesting, the Remee cable that certified as Cat 6 or better at around 225 feet bears the ETL mark and the Syston that barely cracked 5e at 104 feet carries the UL plus hologram stamp. Maybe Just a bad box? The Syston stuff is definitely off shore stuff according to my distributor and Remee is US made. UL or ETL testing has NOTHING to do with whether the cable meets any manufacturers certification specification. The listing is only to determine compliance with voltage breakdown between conductors(150 volts for CL2 or CM cable) and that the cable meets smoke emission and flame spread for the particular type of cable (general purpose- CM, riser- CMR or plenum- CMP). -Hal
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Thanks Hal, Just rolling with what another poster said. So basically all the ETL or UL says for what ever the rating is. Is a burn and emission rating. Not a speed rating.
John 807
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Moderator-1A2, Cabling
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Moderator-1A2, Cabling
Joined: May 2007
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The only people that I figure would give a "Speed rating" to would be the EIA/TIA and possibly BICSI.
Sam
"Where are we going and why are we in this hand basket?"
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Thanks Hal, Just rolling with what another poster said. So basically all the ETL or UL says for what ever the rating is. Is a burn and emission rating. Not a speed rating. All the NEC cares about is the protection of life and property. They couldn't give a rat's patoot whether your CAT5e passes data, only that it doesn't harm anybody or burn the building down. -Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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Is everyone ready for the new LP communications cable and all of the NEC that will go with it?
Experiencing EMI on data cable can be very common these days with the higher speeds that are being pushed through the cabling. Run a data cable over the dimmers for several LED lights and it will cause EMI on the cable most of the time . Even the high-end equipment will be affected by it. I've had to fix this problem way to many times lately
Patrick T. Caezza Santa Paula, CA 93060 C-7 - Low Voltage System Contractor - Lic# 992448
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We use West Penn Wire. Their CAT 5E certifies as CAT 6 out to 300 feet. We only use CAT 6 anymore. I just got tired of carrying several spools of the different cables, so everyone in the company only carries CAT 6 Plenum.
Hal is correct. The UL ratings only address conformance to voltage breakdown and smoke emissions when burning. The NEC is a Life Safety code and there is no specifications for BERT or speed compliance.
IEEE makes specification on data carrying bandwidth and the TIA/EIA usually follows the IEEE specifications.
Rcaman
Americom, Inc. Where The Art And Science Of Communications Meet
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