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CAT5 Installation info
- To: <ukha_d@xxxxxxx>
- Subject: CAT5 Installation info
- From: "Dr John Tankard" <jtankard@xxxxxxx>
- Date: Wed, 29 Mar 2000 09:02:58 +0100
- Delivered-to: rich@xxxxxxx
- Delivered-to: listsaver-egroups-ukha_d@xxxxxxx
- Mailing-list: contact ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
Following the links to Leviton offered yesterday I read the Wiring
Strategies Paper and for those who Have not read it I thought this might be
interesting, its about cabling system performance some of the figures were
much worse than I expected.
CONDITION Performance Reduction
Full Channel Properly Installed Benchmark
Cable Flexed 1000 times No Change
Replace 2ft CAT5 with 2 ft Cat 3 8.0 dB
Replace 2ft CAT5 with 20 ft Cat 3 13.0 dB
Coiled Cable in 6i Cicle 2" Dia x section No Change
Bundled and secured with ties (20Lbs) No Change
Remove 1" of Sheath at station end 1.2dB
Remove 12" of Sheath at station end 2.0 dB
Untwist 0.5" at station end 1.5 dB
Untwist 2" at station end 3.8 dB
Untwist 6" at station end 11.6 dB
Bend cable around 3" Dia 1.9 dB
Bend cable around 1" Dia 2.1 dB
Kink cable 2.4 dB
Cable in Aluminium conduit No Change
John
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