Omron CRT1 - 10-2008 Operation Manual page 106

Power Supply Wiring
• Use separate power supplies for the Master Unit trunk line and for each
sub-trunk line (i.e., for the trunk line or sub-trunk line upstream from a
Repeater Unit and the sub-trunk line downstream from a Repeater Unit).
Master Unit/
Repeater Unit Communications
power supply
Trunk line or
sub-trunk line
Communications
power supply
Same power supply
Master Unit/
Communications
Repeater Unit
power supply
Transmission quality will not be maintained and communications errors may
occur if this restriction is not observed.
Separate power supplies
Round cable II or
Flat Cable I/II
Repeater Unit
Sub-trunk line
Trunk line or
Round cable II or
sub-trunk line Flat Cable I/II
Repeater Unit
Sub-trunk line
Section 3-5
Round cable II or
Flat Cable I/II
Round cable II or
Flat Cable I/II
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