Round Cable Ii - Omron CJ Series Operation Manual

3 Wiring Configurations
3-2-2

Round Cable II

• The two communications signal lines and the two communications power supply lines are connected
in parallel between the Master Unit or Repeater Unit and multiple Slave Units.
• A DCN4-TB4 Open Type Connector is used to connect the communications cable between the Mas-
ter Unit or a Repeater Unit and a Slave Unit.
• Connect the communications power supply (24 VDC) to the communications power supply connector
for the Master Unit or Repeater Unit.
• A DCN4-TR4 Flat Connector Socket and a DCN4-TM4 Terminating Resistor must be connected at
the end of the network.
Master Unit or
Repeater Unit
Communications
power supply
BS+
BDH
BDL
BS−
Open Type Connector
Open Type Connector
Multidrop connections can also be used to connect the Slave Units in parallel.
Master Unit or
Repeater Unit
Communications
power supply
BS+
BDH
BDL
BS−
Open Type Connector
Open Type Connector
3-6
Communications power supply connector
Communications
power supply, 24 VDC
Relay terminal block
Communications signal lines (2)
Slave Unit
BDH BS− BDH BS−
BS+ BDL BS+ BDL
Communications signal lines (2)
Communications power
supply lines (2)
BS−
BS+ BDH BDL BS+ BDH BDL
Slave Unit
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
Communications power supply lines (2)
Slave Unit Slave Unit
BDH BS−
BS+ BDL
BS− BS−
BS+ BDH BDL
Slave Unit
Slave Unit
Terminating
Resistor (121 Ω)
Terminating
Resistor (121 Ω)