Omron CV500 Installation Manual page 46

Rack Components
2-3-3 I/O Interface Units
CV500-II101
CV500-II201
One I/O Interface Unit is needed on the Expansion CPU Rack and on each Ex-
pansion I/O Rack. Two models of I/O Interface Unit are available, the
CV500-II101 for the Expansion CPU Rack and the CV500-II201 for Expansion
I/O Racks. An I/O Interface Unit enable data communication between Racks.
The I/O Interface Unit must be mounted to the leftmost slot on the Expansion
CPU and Expansion I/O Backplane.
I/O connectors The connectors
are functionally identical and ei-
ther can be used to connect to
the preceding or succeeding
Rack.
I/O Connectors Both connectors
are functionally identical and ei-
ther can be used to connect to
the preceding or succeeding
Rack.
Attach a Termination Resistance Unit to the unused I/O Connecting Cable Con-
nector of the last Rack in a each series leading from the CPU Rack.
Section 2-3
CPU bus connector
Display
Rack number switch
Display mode switch Changes the
data displayed on the display.
Display
Rack number switch
Display mode switch
Changes the data dis-
played on the display.
Peripheral device connec-
tor cover
33