Measurement Computing STLITE-CPCI-xxx - Manual (Page 5)

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1. INTRODUCTION
The STLITE-CPCI-8R(+) and -16R(+) are expansion chassis having either eight or sixteen slots for expanding
the Compact Peripheral Component Interconnect (CPCI) local bus of a Compact PC computer system. If more
than sixteen additional slots are required, additional chassis can be daisy-chained together. A CPCI Expansion
Chassis is transparent to the user. The expansion chassis complies with the Compact CPCI Local Bus
specification.
With standard usage, no special driver or software support is required to install and use Compact CPCI boards in
the STLITE-CPCI-16R Expansion Chassis.
The expansion chassis provides special features not usually found in expansion chassis. These include:
•
Backplane temperature monitoring.
•
Power supply voltage monitoring.
•
Optional individual card-slot temperature monitoring (16R+ and 8R+ models).
•
An optional rack-mounted cooling fan housing having four fans.
•
Fan current monitoring for the optional fans.
The basic expansion chassis consists of a standard rack-mounted enclosure, a circuit board for installation in the
host computer, and a three-foot shielded ribbon cable to connect the two.
Figure 1-1 shows the functional relationships of both model versions and special features of the unit.
Figure 1-1. Functional Block Diagram- STLITE-CPCI-8R/16R Expansion Chassis
Host
PCI
Bridge
Host Primary Bus
Cable
Chassis
PCI
Bridge
A/D 1
A/D 2
Compact PC
Voltage Monitors
Fan Voltages
to A/D
A/D 0
ATX
Power
Supply
3.3VDC
5VDC
−
12VDC
12VDC
Backplane
Temperature
Sensor
Chassis Secondary Bus
8 9 2 10 11
Optional
Slot Temperature Sensors
STLITE CPCI-8R/16R Compact PCI Expansion System
Chassis Secondary Bus
CPCI
Card
Slots
Optional
Slot Temperature Sensors
Chassis
PCI
Bridge
12 14 13 15
12VDC
Fan Voltages
OPTIONAL FAN HOUSING
STLITE-CPCI-16R+
Only
STLITE-CPCI-8R
7 6 5 4 3 1 0