23
2-2 Racks
This
section describes the Racks used to construct a PC System. The individual
components used to construct the Racks are described in the next section.
2-2-1 CPU Racks
The following figure shows the parts of the CPU Rack. There are five Back-
planes
available for the CPU Rack. Any CPU can be mounted to any Backplane.
The
only dif
ferences in the Backplanes is the number of slots that they provide
for
Units, their
expansion capability
, and the number of slots for CPU Bus Units.
The CV500-BC031, CV500-BC051, and CV500-BC101 provide complete ex-
pansion capability and provide 3, 5, and 10 slots, respectively, for Units other
than the CPU, Power Supply Unit, and I/O Control Unit.
The
CVM1-BC053 and CVM1-BC103 do
not support I/O Control Units and pro
-
vide
5 and 10 slots, respectively
, for Units other than the CPU and Power Supply
Unit. Because I/O Control Units are not supported, these Backplanes can be
connected only to a single Expansion I/O Rack as illustrated on page 18.The
CPU
Backplane cannot be used for an Expansion
CPU or Expansion I/O Rack.
CPU Backplane No. of slots CPU Bus Unit slots I/O Control Unit
CV500-BC031 3 3 Yes
CV500-BC051 5 5 Yes
CV500-BC101 10 10 Yes
CVM1-BC053 5 Rightmost 3 No
CVM1-BC103 10 Rightmost 6 No
I/O Control Unit
An I/O Control Unit must be mounted to the Rack in order to
connect an Expansion CPU or more than one Expansion I/O
Rack. The model of I/O Control Unit used determines the
other Racks can be connected.
Units
(Up to 3/5/10 or the following Units: SYSMAC NET Link
Units, SYSMAC LINK Units, SYSMAC BUS/2 Masters,
BASIC Units, Personal Computer Unit, C500 I/O Units,
C500 Special I/O Units, SYSMAC BUS Masters)
CPU Backplane
CV500-BC031/051/101 (3/5/10 slots)
CVM1-BC053/103 (5/10 slots)
CPU
CV500-CPU01-EV1,
CV1000-CPU01-EV1,
CV2000-CPU01-EV1,
CVM1-CPU01-EV2,
CVM1-CPU1
1-EV2, or
CVM1-CPU21-EV2
Power Supply Unit
CV500-PS221/PS211
CVM1-PA208
I/O Control Units are
not supported by
CVM1 Backplanes.
Racks Section 2-2
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