HP ProCurve 1600M Manuel d'installation - Page 24

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HP ProCurve 1600M Manuel d'installation
Specifications
18
Note on 1000Base-T Cable Requirements. The Category 5 networking
cables that work for 100Base-TX connections should also work for
1000Base-T, but for the most robust connections you should use cabling that
complies with the Category 5E specifications, as described in Addendum 5 to
the TIA-568-A standard (ANSI/TIA/EIA-568-A-5).
Because of the increased speed provided by 1000Base-T (Gigabit-T), network
cable quality is more important than for either 10Base-T or 100Base-TX.
Cabling plants being used to carry 1000Base-T networking must comply with
the IEEE 802.3ab standards. In particular, the cabling must pass tests for
Attenuation, Near-End Crosstalk (NEXT), and Far-End Crosstalk (FEXT).
Additionally, unlike the cables for 100Base-TX, the 1000Base-T cables must
pass tests for Equal-Level Far-End Crosstalk (ELFEXT), Multiple Disturber
ELFEXT, and Return Loss.
When testing your cabling, be sure to include the patch cables that connect
the switch and other end devices to the patch panels on your site. The patch
cables are frequently overlooked when testing cable and they must also
comply with the cabling standards.
Fiber-Optic
100Base-FX
Gigabit-SX
Gigabit-LX
62.5/125 µm or 50/125 µm (core/cladding) diameter, graded-
index, multimode fiber-optic cables, complying with the
ITU-T G.651 and ISO/IEC 793-2 Type A1b or A1a respec-
tively, fitted with SC connectors
62.5/125 µm or 50/125 µm (core/cladding) diameter, graded-
index, low metal content, multimode fiber-optic cables,
complying with the ITU-T G.651 and ISO/IEC 793-2 Type
A1b or A1a respectively, fitted with SC connectors
low metal content, single mode fiber-optic cables,
complying with the ITU-T G.652 and ISO/IEC 793-2 Type B1
standards, fitted with SC connectors
OR
62.5/125 µm or 50/125 µm (core/cladding) diameter, graded-
index, low metal content, multimode fiber-optic cables,
complying with the ITU-T G.651 and ISO/IEC 793-2 Type
A1b or A1a respectively, fitted with SC connectors