User guide

Appendix B: Cables
Page B-6 Ethernet Switch Module User Guide
B.5 5 - 4 - 3 RULE
Between any two nodes (i.e., PCs or other stations) on the network, there
may be:
• Up to 5 segments in series
• Up to 4 repeaters or multi-port hubs
• Up to 3 populated segments (that is, segments attached to two or more
PCs).*
* The remaining two segments are unpopulated; these are known as
inter-repeater links or IRLs. This distinction between populated and
unpopulated segments is significant for coax networks only.
14 VS Voltage Shield
Shell PG
Protective Ground
(Conductive Shell)
NOTE
Voltage Plus (VP) and Voltage Common (VC) use a single
twisted-pair in the AUI cable.
NOTE
This rule completely consistent with the IEEE 802.3
specification, and is meant only to summarize the configuration
specification.
Table B-10 AUI Pin Assignments (Continued)
Pin Circuit Signal Name