Cisco 1720 Hardware Installation Manual page 65

Appendix B Cabling Specifications
Ethernet Network Cabling Guidelines
Specification
Maximum segment length
Maximum number of segments per
network
Maximum hop count
Maximum number of nodes per
segment
Cable type required
1.Hop count = Routing metric used to measure the distance between a source and a destination.
Console Cable and Adapters
78-5405-03
Table B-2 describes some guidelines for creating Ethernet networks. Figures
might vary, depending on the manufacturer of the network equipment.
1
A console cable kit is provided with your router. Use this kit when connecting
your router to a PC or terminal.
The console cable kit contains:
RJ-45-to-RJ-45 console cable (blue)
•
RJ-45-to-DB-9 adapter (gray)
•
Table B-3 describes the wiring for the console port, the console cable, and the
included adapters. This table also includes pinouts for an RJ-45-to-DB-25
adapter. Figure B-1 illustrates how to identify the console cable, which is also
referred to as a rollover cable.
Table B-2 Ethernet Cabling Guidelines
10BaseT
100 meters
5
4
1024
UTP
Category 3, 4, or 5
Cisco 1700 Router Hardware Installation Guide
100BaseTX
100 meters
• With Class I repeaters: 1
• With Class II repeaters: 2
• With Class I repeaters: none
• With Class II repeaters: 1
1024
UTP Category 5 or STP
B-3