User Manual Chapter 3

Chapter 3: Installing the Hardware Infrastructure 3-5
CBS Installation
The following sections describe the preparation, cabling, and
installation of the CBS and its related components.
CBS Ethernet Cable Connections
The Release 3.0 CBS uses a star topology and has an integrated
Ethernet hub that can connect to three other CBSs. DecisioNet III
supports up to three (3) levels below the primary CBS. This topology
results in the 40 CBS maximum mentioned in the General Layout
Guidelines section. The following illustration shows an example 40 CBS
configuration, its Ethernet cable connections, and the maximum
number of CBSs on each level.
Ethernet Hub
WS
WS
WS
WS
Level 1
Level 2
Level 3
Primary CBS
In Out
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Out Out
In Out
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Out Out
In Out
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Out Out
In Out
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Out Out
In Out
87654321
87654321
87654321
87654321
Out Out
In Out
8765432187654321 8765432187654321
Out Out
In Out
8765432187654321 8765432187654321
Out Out
In Out
87654321
87654321
87654321
87654321
Out Out
In Out
8765432187654321 8765432187654321
Out Out
In Out
8765432187654321 8765432187654321
Out Out
In Out
8765432187654321 8765432187654321
Out Out
In Out
8765432187654321 8765432187654321
Out Out
In Out
87654321
87654321
87654321
87654321
Out Out
In Out
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Out Out
In Out
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Out Out
( 3 CBSs)
( 9 CBSs)
( 27 CBSs)
CBS 24-26
CBS 1
CBS 27-29
CBS 40-48 CBS 49-57
11
12
13
21 22 23
31
32
33
34
35 36
37
38
39
18885
Power
Uplink
D DDDCCCC
12 3
Ground
+24VDC