Omron 3G8F7-CRM21 User Manual page 223

Wiring for Power Supply
Restrictions
The following restrictions apply when supplying communications power
through a round cable II, Flat Cable I, or Flat Cable II.
• The communications power supply can be connected at only one location
for the trunk line and one location each for the sub-trunk lines.
• Communications power to the trunk line can be supplied only through the
communications power supply connector on the Master Board.
Communications power to a sub-trunk line can be supplied only through
the downstream port of communications power supply connector on the
Repeater Unit. Communications power cannot be supplied at any other
locations.
The communications power is supplied to
the communications power supply connector
on the Master Unit.
Master Board/
Communications
Repeater Unit
power supply
3 m max.
Trunk line or
sub-trunk line
Communications
power supply
The communications
power is supplied to
the downstream
communications port
power supply
connector on the
Repeater Unit.
Master Board/
Repeater Unit
Round Cable II, Flat Cable I
or Flat Cable II
Trunk line or
sub-trunk line
Round Cable II, Flat Cable I
or Flat Cable II
Repeater Unit
Sub-trunk
Round Cable II, Flat Cable I
line
or Flat Cable II
The communications power
can be supplied only to the
Communications
communications power supply
power supply
connector on the Master Unit.
Repeater Unit
Slave Unit
Sub-trunk
Round Cable II, Flat Cable I
line
or Flat Cable II
Slave Unit
Communications
power supply
Section E-5
The communications
power can be supplied
only to the down-
stream port communi-
cations power supply
connector on the Re-
peater Unit.
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