Omron CRT1 - 10-2009, Operation Manual

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77
Connecting Cables and Terminating Resistor
Section 3-4
3-4-2 Branching Communications Cables
There are two methods that can be used to branch the trunk line, sub-trunk
lines, and branch lines: T-branches and multidrop connections.
T-branches
Using Round Cable I/II Connect the cable wires by using a commercially available relay terminal
block.
Example: Round cable I
Note Before connecting the cable wires to the terminal block, first attach the M3
crimp terminals shown below to the wires.
Using Flat Cable I Attach a DCN4-BR4 Flat Connector Plug to the DCN4-TR4 Flat Connector
Socket connected to Communications Cable.
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Installation Method
Be sure the surface of the Flat Connector Plug on which line colors are indi-
cated (red, white, black, and blue) is facing downward and press in the Con-
nector until it clicks into place.
Note To remove a Connector once it has been attached, press in on the
latches on both sides of the Connector and pull it out.
Relay terminal block
Slave Unit
6.0 mm max. 6.0 mm max.
Flat Connector Socket
Flat Connector Plug
Slave Unit