Flat Cable I/Ii - Omron CRT1 - 10-2008 Operation Manual

Communications Cable Wiring Examples
2-4-3

Flat Cable I/II

Master Unit or
Repeater Unit
Commu-
nications
power
Master Unit or
Repeater Unit
42
• The two communications signal lines and the two communications power
supply lines are connected to the Master Unit, Repeater Units, and Slave
Units using Flat Cable.
• Connect the communications power supply (24 VDC) to the communica-
tions power supply connector for the Master Unit or Repeater Unit.
• A Terminating Resistor (DCN4-TM4 or DCN5-TM4) must be connected at
the end of the network.
Communications
Communications
power supply
power supply,
connector
24 VDC
Communications
connector
Slave Unit
Slave Units can also be connected in parallel by using multidrop connections.
A DCN4-MD4 Multidrop Connector is required for this.
Flat Cable
Communications
connector
Slave Unit
Flat Cable
• Communications signal lines: BS+ (red) and BS− (black)
• Communications power supply lines: BDH (white) and BDL (blue)
Slave Unit
Flat Connector
Plug
Multidrop
Connector
Slave Unit
Section 2-4
Terminating Resistor
(121 Ω)
Terminating Resistor
(121 Ω)