Omron CJ Series Operation Manual page 143

With Repeater Units
Master Unit
BS+
BS-
BS+
BDH
BDL
BS-
Overcurrent
Communications
protection (*1)
power supply
(current limit: 4 A)
V
Power
Open Type
supply
Connector
G
Overcurrent
Communications
protection (*1)
power supply
(current limit: 4 A)
V
Power
Open Type
supply
Connector
G
Round Cable I
Precautions for Correct Use Precautions for Correct Use
The I/O power supply to multi-power supply Slave Units may be a source of noise depending on
the connected devices. Even when supplying the communications power supply together to all
Slave Units, use a separate I/O power supply so that noise does not affect the network.
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
Round Cable I
Communications
power supply
Repeater
Unit
Power
Port 1
supply
BS+1
Port 2
BDH1
BS+2
BDL1
BDH2
BS-1
BDL2
BS-2
Trunk line
Port 1: Upstream
Port 2: Downstream
I/O power supply
Round Cable I
Power
supply
Communications
power supply
Repeater
Unit
Power
Port 1
supply
BS+1
Port 2
BDH1
BS+2
BDL1
BDH2
BS-1
BDL2
BS-2
Port 1: Upstream
Port 2: Downstream
Terminating
Resistor
I/O power supply
Power
supply
*1: When complying with UL standards, install a device to limit the
current between the external power supply and the Unit to 4 A
or less for the communications power supply.
Overcurrent
protection (*1)
(current limit: 4 A)
V
G
Sub-trunk
Open Type
Connector
Slave Unit
Multi-power
supply
V G
V
G
Overcurrent
protection (*1)
(current limit: 4 A)
V
G
Sub-trunk
Open Type
Connector
Slave Unit
Multi-power
supply
V G
V
G
4 Installation and Wiring
Round Cable I
Terminating
Resistor
Open Type
Connector
Slave Unit
Multi-power supply
V G
Round Cable I
Terminating
Resistor
Open Type
Connector
Slave Unit
Multi-power supply
V G
4
4-35