Information Technology Reference
In-Depth Information
Ethernet Media Specifications
This section lists the physical media specifications, including range limitations for Ethernet,
FE, and GE.
10Base5 Thick Ethernet
Commonly referred to as Thick Ethernet or Thicknet, this specification uses 0.4 inch, 50-ohm
coaxial cable. The specifications for Thicknet are as follows:
•
0.4 inch, 50 ohm coax cable.
•
Maximum segment length is 500 m.
•
Maximum number of attachments per segment is 100.
•
Maximum AUI cable length is 50 m.
•
Minimum separation between attachments (MAU) is 2.5 m.
•
Cable ends terminate with 50 ohm terminators.
•
MAU attach workstations.
•
Maximum network length is 5 segments and 2500 m.
•
Maximum number of stations on the network is 1024.
Figure 4-8 shows a sample 10Base5 Ethernet network.
Sample 10Base5 Network
Figure 4-8
MAU
0.4 inch 50 ohm coaxial cable
2.5 m minimum
AUI Cable
50 m max
50 ohm
Terminators
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