Rockwell Automation 1770-SC A-B Data Highway/Data Highway+ Installation Date User Manual
Page 3
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1
1.. To maintain signal integrity, twist together the same colour wires from each
trunkline cable before securing the wires under their respective screw-clamp
terminals. Connect blue wires to terminal 1, drain wires to terminal 2, and clear
wires to terminal 3 as shown in the wiring diagram.
2
2.. Feed the free end of the dropline cable through its cable clamp at the bottom of
the enclosure.
3
3a
a.. If your dropline is between 10 and 100 feet, connect the drain wire of your
dropline cable to terminal 7.
3
3b
b.. If your dropline cable is less than ten feet, isolate the shied of the dropline cable
from the enclosure. Tape the drain wire and an protruding shield or foil for
electrical isolation.
4
4.. Connect dropline cable wires, blue to terminal 6 and clear to terminal 8 as shown
in the wiring diagram.
5
5.. Secure the trunkline and dropline cables by tightening the cable clamps.