31
2-3-2 I/O Control Units
An
I/O Control Unit must be mounted to the CPU Rack in order to connect
the
CPU
Rack to an Expansion CPU Rack or to more than one Expansion I/O Rack.
Three
I/O Control Unit models
are available, the CV500-IC101 for connecting an
Expansion CPU Rack and/or CV
-series Expansion
I/O
Racks, the CV500-IC201
for connecting just CV-series Expansion I/O Racks, and the CV500-IC301 for
connecting C500 Expansion I/O Racks. An I/O Control Unit can be mounted
even
if no Expansion I/O or Expansion CPU
Rack is used. The I/O Control Unit
must be mounted to the leftmost slot on the CPU Backplane.
Display
Display
mode selector
Changes the data displayed
on the display
.
CPU Bus Connector
For connect
-
ing an Expansion CPU Rack
I/O Connector
T
wo series of Expan
-
sion I/O Racks can be connected.
Both connectors have identical func
-
tions.
To connect an Expansion CPU Rack,
connect one I/O connecter and the
CPU bus connector to the corre
-
sponding connectors on the I/O Inter
-
face Unit on the Expansion CPU
Rack.
CV500-IC101 CV500-IC201
Display
Display mode selector
Changes the data displayed
on the display
.
I/O Connector
T
wo series of Ex-
pansion I/O Racks can be con-
nected. Both connectors have
identical functions.
Display
Display mode selector
Changes the data displayed
on the display
.
I/O Connector
Connects the I/O
Connecting cable for the C500 Ex
-
pansion I/O Racks.
CV500-IC301
Rack Components Section 2-3