Cabling Standards; 100Base-Tx Cabling; Creating A Valid Network - 3Com 3C8S5007 - SuperStack II PathBuilder S500 Switch User Manual

86 A C: C
PPENDIX ONNECTORS AND

100BASE-TX Cabling

C
ABLES

Cabling Standards

Cabling should be installed in accordance with the following standards:
EIA/TIA-568 – Commercial building telecommunications wiring
standard
TSB-36 – Additional cable specifications for unshielded twisted pair
cables
IBM cabling guidelines
Table 15 lists supported 100BASE-TX cable types and emissions classes.
Table 15 Cable Support and Emissions Compliance
Cable Type
Category 5 UTP
Category 5 shielded UTP Category 5 RJ-45
* Shielding of all cable types should be terminated 360º at the cable plug.
The three types of Fast Ethernet interfaces are:
TX — Runs over Category 5 UTP and Category 5 shielded UTP.
FX — Runs over fiber. FX does not connect to the PathBuilder switch,
but you can use FX in your network between appropriate devices.
T4 — Runs over Category 3 or better UTP or shielded UTP. T4 does
not connect to the PathBuilder switch, but you can use T4 in your
network between appropriate devices.
Follow the steps in the next section to design a valid Fast Ethernet
network.

Creating a Valid Network

A Fast Ethernet network consists of collision domain diameters formed by
cabling and/or repeaters between two DTE devices. A DTE device is a
bridge/router, switch, or end station that contains a media access
controller (MAC). Repeaters usually do not contain a MAC.
Connectors
Category 5 RJ-45
(including jacks)
(including jacks)
Emissions Compliance
FCC Class A EN55022 Class B
VCCI Class A VDE Class B
Yes No
Yes Yes
*