Справочник Пользователя для Cabletron Systems 8H02-16

 

This chapter contains general networking guidelines. Before attempting 
to use the 8H02-16 or to install a Fast Ethernet Interface Module 
(FE-100TX or FE-100FX), review the requirements and specifications 
outlined in this chapter.

The network installation must meet the guidelines included in this chapter 
to ensure satisfactory performance of this equipment. Failure to follow 
these guidelines may produce poor network performance.

Refer to the following sections that apply to your specific network 
configuration. 

When connecting a 10BASE-T twisted pair segment to any of the 
8H02-16 ports (Interfaces 1 through 14), ensure the network meets the 
following requirements:

The IEEE 802.3 standard for 10BASE-T requires that 10BASE-T devices 
transmit over a 100 meter (328 foot) link using 22–24 AWG Unshielded 
Twisted Pair (UTP) wire. However, cable quality largely determines 
maximum link length. If you use high quality, low attenuation cable, you 
can achieve link lengths of up to 200 meters. Cable delay limits the 
maximum link length to 200 meters.

Losses introduced by connections at punch-down blocks and 
other equipment reduce total segment length. For each 
connector or patch panel in the link, subtract 12 meters from 
the total length of the cable.