Cabletron Systems ESX-1320 ユーザーズマニュアル

This chapter contains general networking guidelines. Before attempting 
to install the ESX, review the requirements and specifications outlined in 
this chapter.

Take care in planning and preparing the cabling and connections for your 
network. The quality of the connections, the length of cables, and other 
conditions of the installation play critical roles in determining the 
reliability of your network.

Refer to the sections which follow that apply to your specific network 
configuration. 

When connecting a 10BASE-T segment to the ESX-1320, ensure the 
network meets the following requirements:

•

Length: The IEEE 802.3 10BASE-T standard requires that 
10BASE-T devices transmit over a 100 meter (328 foot) link using 
22-24 AWG unshielded twisted pair wire. This is supported by 
Cabletron Systems. 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. 

Your network installation must meet the conditions, guidelines, 
specifications, and requirements included in this chapter to 
ensure satisfactory performance of this equipment. Failure to 
follow these guidelines may result in poor network 
performance.

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 your cable.