Справочник Пользователя для 3com SuperStack II

A

PPENDIX

 D: C

ONNECTORS

 

AND

 C

ABLES

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

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 SuperStack II 
NETBuilder SI bridge/router, 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 SuperStack II NETBuilder SI bridge/router, 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.

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. 

Table 22   Cable Support and Emissions Compliance

* Shielding of all cable types should be terminated 360º at the cable plug.

Category 5 UTP 

Category 5 RJ-45 
(including jacks)

Yes

No

Category 5 shielded UTP Category 5 RJ-45 

(including jacks)

Yes

Yes