Cabletron Systems NBR-420 사용자 설명서

This appendix contains general networking guidelines. Before attempting 
to install the NBR or any additional EPIMs or BRIMs, review the 
requirements and specifications outlined in this appendix.

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 below that apply to your specific network 
configuration. 

When connecting a 10BASE-T Twisted Pair Segment to an EPIM-T, 
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. 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 maximum link length to 200 meters, regardless of 
the cable type.

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