Branching A Communications Cable - Omron CJ Series Operation Manual

4 Installation and Wiring

4-2-3 Branching a Communications Cable

There are two ways to branch the trunk line, sub-trunk lines, and branch lines: T-branches and multi-
drop connections.
T-branching
Round Cable I or II
Use a commercially available relay terminal block, and connect the cable wires to the block.
Example for Round Cable I
Slave Unit
Precautions for Correct Use Precautions for Correct Use
Attach an M3 crimp terminal to the cable wire before you connect the wire to a Terminal Block.
6.0 mm max.
Flat Cable I
Attach a DCN4-BR4 Flat Connector Plug to a DCN4-TR4 Flat Connector Socket which has already
been mounted to the communications cable.
DCN4-TR4
Flat Connector
Socket
• Mounting Procedure
Hold the Flat Connector Plug with the side with the line colors (red, white, black, and blue) facing
down, and push the Connector Plug inward until it clicks into place.
Note To remove a Connector Plug which has been attached, hold the latches on both sides of the
Connector, and pull out the Connector Plug.
4-10
Relay terminal block
6.0 mm max.
DCN4-BR4
Flat Connector
Plug
Slave Unit
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)