3Com CoreBuilder 5000 User Manual page 6

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D E
ESIGNING AND XPANDING THE
Building a CoreBuilder 5000 Token Ring Network
Additional Configuration Information
Determining the Maximum Number of Stations on a Ring
Selecting Appropriate Cable Lengths
Calculating Cable Lengths (Copper Wiring)
Additional Cable and Lobe Length Recommendations
Maximum Attenuation
Signal to NEXT Ratio
Transmitter Variation
Temperature 2-6
Cabling Standards
3Com Lobe
Cable Length Recommendations
Lobe Cabling Requirements
STP Lobe Cables
UTP/Levels 3, 4, and 5 Lobe Cables
120 ohm (Screened Twisted Pair) Lobe Cables
Connection Hardware
3Com Trunk Cable Recommendations
Copper Trunk Cables
Fiber Trunk Cables
Determining Fiber Cable Lengths Using Alternate Fiber
Diameters 2-10
Using Media Filters 2-11
Configuration Examples
Traditional Backbone Ring
Collapsed Backbone Configuration
Ring 1 Description
Ring 2 Description
Ring 3 Description
Devices Internetworked in the Master Hub
Single Extended Ring Configuration
Where to Go From Here
N
ETWORK
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