R&S SM300 Platform Concept
Version 04 89
Service Manual SM300: 1147.1652.00 Instrument Part No SM300: 1147.1498.03
4 Functional Description
4.1 Platform Concept
Components of
the modular
system platform
The modular system platform consists of the following components:
Housing with power supply unit
Front unit with display, keyboard and rotary knob as control elements
Control PC
With these components, configurations that optimally correspond to the
requirements for various types of instruments can be set up.
4.2 Components
4.2.1 Housing
Parts of housing
Fixed part for the power supply unit
Variable part for the generator modules
4.2.2 Front Panel with Display
Standard control
elements
The front panel, display and keyboard form a mechanical unit. The following
control elements are available as standard:
Numeric keypad + 4 special keys
7 vertical function keys
3 horizontal function keys
Rotary knob
Standard display
A 5 ½" TFT colour display with 320×240 pixel resolution is provided as the
standard display.
4.2.3 Control PC
Performance
The control PC provides the instrument's control and display functions via the
front unit. A "single-chip PC" (STPC from ST) provides an economical solution
with acceptable power consumption. The processor (5×86 core) supplies
sufficient performance for the operating and display functions. Processes that
have high requirements for computing power or short task-switchover times are
relocated to more dedicated processors in the generator modules.
Remote control
via USB
The control PC contains a USB host that handles communication with the
generator modules. This concept allows the instrument to be remotely controlled
by an external PC via the USB with software whose core functions are largely
identical to the internal control software.
Operating
system and
interface
The operating system on the control PC is Linux; the visualization and operating
interface is a runtime version of LabVIEW™.
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