Rockwell Automation 1770 DH,DHII,DH485 CABLE - Manual (Page 27)

Planning a Data Highway or Data Highway Plus
Cable System
Chapter 2
2-11
Terminators
Figure 2.6 shows the terminators that must be installed in your DH or DH+
cable system if you use the 1770-XG connector kit. These terminators are
included in the 1770-XG connector kit. You must install two terminators
(one plug terminator and one jack terminator) for a complete DH or
DH+ network.
Figure 2.6
Two terminators must be installed for a complete DH or DH+ cable
system.
Plug Terminator Jack Terminator
11608
Figure 2.7 illustrates how the terminators can be positioned in a DH or
DH+ network.
Figure 2.7
Typical placement of terminators in a DH or DH+ network.
PLC-2
Station
PLC-3
Station
Mini-PLC-2
Station
PLC
Station
Computer
Station
Dropline
Dropline
Dropline
Dropline
Dropline
Terminator
Terminator
Trunkline
T-Connectors
11605