Omron CJ Series Operation Manual page 146

4 Installation and Wiring
Restrictions
The following restrictions apply when supplying communications power through a Round Cable II,
Flat Cable I, or Flat Cable II cable.
• The communications power supply can be connected at only one location for the trunk line and
one location each for the sub-trunk lines.
• Communications power to the trunk line can be supplied only through the communications power
supply connector on the Master Unit. Communications power to a sub-trunk line can be supplied
only through the downstream port of communications power supply connector on the Repeater
Unit. Communications power cannot be supplied at any other locations.
Power Can Be Supplied
Master Unit or
Repeater Unit
Communications
power supply
Master Unit or
Repeater Unit
Trunk line or
sub-trunk line
4-38
3 m max.
Trunk line or
Round Cable II, Flat Cable I, or Flat Cable II
sub-trunk line
Repeater Unit
Communications
power supply
Sub-trunk
line
Power Can
Be Supplied
Repeater Unit
Sub-trunk
line
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
Round Cable II, Flat Cable I, or Flat Cable II
Power Cannot Be Supplied
Communications
power supply
Round Cable II, Flat Cable I, or Flat Cable II
Slave
Round Cable II, Flat Cable I, or Flat Cable II
Power Cannot Be Supplied
Slave
Communications
power supply