Omron 3G8F7-CRM21 User Manual page 180

CompoNet Network Specifications
Precautions for Correct Use
Selecting applicable
cable types
Using Different Cable
Types
Precautions for Correct Use
Separating Cables of
a CompoNet System
from Others for
Another System
160
Types of Flat Cable II other than DCA5-4F10 can be used as long as they
conform to the CompoNet specifications. Ask the cable manufacturer for
information on which products are applicable to CompoNet.
•As for the products conforming the CompoNet specifications and their
manufacturers, check the ODVA website at the following address: http: //
www.odva.org/
•The characteristics of each conductor in Flat Cable I and Flat Cable II have
been adjusted to the respective application as listed in the table. Check the
line insulator colors, and use them only for the specified application only.
See the above description regarding cable types and select those that are
appropriate for the purpose.
All cables downstream from the Master Board must be of the same type. This
means the same type of cable must be used for the trunk line and branch
lines, for sub-trunk lines and branch lines, and for branch lines and their sub-
branch lines.
However, when a Repeater Unit is used the cables can be different upstream
and downstream from the Repeater Unit, i.e., for the trunk line and sub-trunk
lines, and for a sub-trunk line and another sub-trunk line.
Master Board
Cable (Trunk line)
Cables upstream the Repeater Unit can be different from those in downstream.
Repeater
Unit
Cable (Sub-trunk line)
Slave Unit
Round cable I, round cable II, Flat Cable I and Flat Cable II are all treated as
different types of cables.
When plural adjacent CompoNet systems use Flat Cables I or II, electrical
interference may disturb stable system operation. To prevent this, do not
bundle Flat Cables for different CompoNet systems. Instead, separate the
Cable for one network by a distance of at least 5 mm from the cable other for
another network.
All cables in this range must be same in type.
All cables in this range must be same in type.
Slave Unit
Section E-1