Rockwell Automation 1770-KF3 DH-485 Communication Interface User Manual - Manual (Page 15)

Installing the KF3
Chapter 2
2Ć7
Figure 2.9
Connection for Last Segment of a Multidrop Network
Third node
Jumper to
terminate node
Fourth node on the end of the multidrop network
* The black wire of the white/black pair should be cut back (no connection).
DHĆ485
Cable
Installing the DHĆ485 Cable
The DH-485 cable consists of a number of daisy-chained segments. The
total length of the combined segments must not exceed 4,000 feet. Cut the
cable segments long enough to route from one node to the next, allowing
sufficient slack to prevent strain on the connectors. Provide strain relief
for the cable after it is plugged in to prevent the cable wires from breaking.
Figure 2.10
Cable Connection on a DHĆ485 Link
ЛЛ
ЛЛ
BELDEN
#9842
BELDEN
#9842
Connector
(Phoenix MSTBĆ2.5/6ĆSTĆAU)
KF3
Link
Coupler
1747ĆAIC
Link
Coupler
1747ĆAIC