Netgear GS748Tv3 GS748Tv3 User Manual - Page 68

Cabling

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Smart Switch Software User Manual GS748T Figure C-3 Note: Flat "silver satin" telephone cable may have the same RJ-45 plug. However, using telephone cable results in excessive collisions, causing the attached port to be partitioned or disconnected from the network. Using 1000BASE-T Gigabit Ethernet over Category 5 Cable When using the new 1000BASE-T standard, the limitations of cable installations and the steps necessary to ensure optimum performance must be considered. The most important components in your cabling system are patch panel connections, twists of the pairs at connector transition points, the jacket around the twisted-pair cable, bundling of multiple pairs on horizontal runs and punch down blocks. All of these factors affect the performance of 1000BASE-T technology if not correctly implemented. The following sections are designed to act as a guide to correct cabling for 1000BASE-T. Cabling The 1000BASE-T product is designed to operate over Category 5 cabling. To further enhance the operation, the cabling standards have been amended. The latest standard is Category 5e, which defines a higher level of link performance than is available with Category 5 cable. If installing new cable, we recommend using Category 5e cable, since it costs about the same as Category 5 cable. If using the existing cable, be sure to have the cable plant tested by a professional who can verify that it meets or exceeds either ANSI/EIA/TIA-568-A:1995 or ISO/ IEC 11801:1995 Category 5 specifications. C-4 Network Cabling v1.0, October 2007

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Smart Switch Software User Manual GS748T
C-4
Network Cabling
v1.0, October 2007
Figure C-3
Using 1000BASE-T Gigabit Ethernet over Category 5 Cable
When using the new 1000BASE-T standard, the limitations of cable installations and the steps
necessary to ensure optimum performance must be considered. The most important components in
your cabling system are patch panel connections, twists of the pairs at connector transition points,
the jacket around the twisted-pair cable, bundling of multiple pairs on horizontal runs and punch
down blocks. All of these factors affect the performance of 1000BASE-T technology if not
correctly implemented. The following sections are designed to act as a guide to correct cabling for
1000BASE-T.
Cabling
The 1000BASE-T product is designed to operate over Category 5 cabling. To further enhance the
operation, the cabling standards have been amended. The latest standard is Category 5e, which
defines a higher level of link performance than is available with Category 5 cable.
If installing new cable, we recommend using Category 5e cable, since it costs about the same as
Category 5 cable. If using the existing cable, be sure to have the cable plant tested by a
professional who can verify that it meets or exceeds either ANSI/EIA/TIA-568-A:1995 or ISO/
IEC 11801:1995 Category 5 specifications.
Note:
Flat “silver satin” telephone cable may have the same RJ-45 plug. However, using
telephone cable results in excessive collisions, causing the attached port to be
partitioned or disconnected from the network.