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6.4 DeviceNet Physical Layer and Media
lines made of thick or thin cable. The baud rate, maximum distance from end-to-end of the net-
work, and cable size are dependent on each other. See the table Features of a DeviceNet Net-
work on page 63 for further details.
3
Multiple Node
Branching
Drop Line
2
Terminating
Resistor
Node
1
Zero-Length Drop Line
Figure 6-1. Trunk Lines and Drop Lines Made of Thick and Thin Cable
Item
1
2
3
4
5
6
7
8
9
10
DeviceNet allows devices to be powered directly from the bus, and devices can use the same
cable to communicate with other devices on the bus. DeviceNet nodes are hot-pluggable —
you can remove or add components on the bus without powering down the network.
62
1
1
Node
Node
4
1
Multi-port
Tap
Node
Node
Node
1
1
8
Tap
1
Node
1
Node
9
Table 6-2. Topology Description
Node
Terminating Resistor
Multiple Node Branching Drop Line
Multi-Port Tap
Drop Line
Trunk Line
Multiple Node Daisy Chain Drop Line
Tap
Zero-Length Drop Line
Short Drop Lines (6 m)
SmartController EX User's Guide
5
6
Drop Line
Trunk Line
Node
Node
4
Node
Multi-port
Tap
Node
1
Drop Line
1
5
Node
Short Drop Lines (6 m / 20 ft)
10
Description
2
Terminating
Resistor
1
7
1
Multiple Node
Daisy Chain
Drop Line
1
1
Node
11069-000 Rev. H
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