N
ETWORK
P
LANNING
2-8
10 Mbps Ethernet Collision Domain
SMC 5-4-3 Rule
Maximum Ethernet Cable Distance
Between any two PCs or other stations in the same 10 Mbps collision
domain, there may be:
•
up to 5 link segments in series,
•
up to 4 repeaters (hubs),
•
up to 3 populated cable segments, that is, segments attached to
two or more PCs (coax networks only).*
* 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.
Cable Type
Maximum Length
Twisted Pair, Categories 3, 4, 5
100 m (328 ft.)
Thin Coax
185 m (607 ft.)
External Transceiver Drop
50 m (165 ft.)
Summary of Contents for 48-Port
Page 2: ......
Page 14: ...TABLE OF CONTENTS viii ...
Page 34: ...NETWORK PLANNING 2 10 ...
Page 46: ...MAKING NETWORK CONNECTIONS 4 6 ...
Page 50: ...TROUBLESHOOTING A 4 ...
Page 58: ...CABLES B 8 ...
Page 64: ...SPECIFICATIONS C 6 Warranty Limited lifetime ...
Page 66: ...SPECIFICATIONS C 8 Network Management Module Model SMC6948NMM Ports RS 232 console port ...
Page 68: ...ORDERING INFORMATION D 2 ...
Page 74: ...GLOSSARY Glossary 6 ...
Page 79: ......