Chapter 6 Network Wiring
154 BMTW-SVN01F-EN
Figure 71. Typical Tracer Summit (ARCNET) Star Topology
Ethernet LAN
For information about maximum cable length and maximum cable dis-
tance between two devices on a communication link, refer to Table 30 on
page 152. Termination is provided by installing a 50 Ω BNC terminator.
ARCNET LAN
Each coaxial cable must be terminated with 93 Ω terminators at the
devices, but not at the hub. For information about maximum cable length
and maximum cable distance between two devices on a communication
link, refer to Table 30 on page 152. The hub cards install into one of the
BCU card slots and use the BCU power for operation.
The maximum distance from a fiber-optic hub to a terminating device is
6,000 ft (1,829 m). This distance depends on the decibel loss of the com-
munication link. Refer to “Fiber-Optic Cable—Ethernet and ARCNET” on
page 7 for more information.
Combination Bus/Star Topology
To bridge a bus topology to a star topology requires a hub that acts as
both a terminator for the bus and a signal repeater for the network. It is
basically the same as the star topology, with the addition of devices set up
Note:
For further information on designing an Ethernet network,
refer to BAS-EB-70, Tracer Summit for Windows and Ethernet.
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