Teledyne 9110T - Nitrogen Oxides Analyzer - Manual (Page 364)

Model 9110T NOx Analyzer Principles of Operation
Teledyne Analytical Instruments 364
13.8.1. LVDS TRANSMITTER BOARD
The LVDS (low voltage differential signaling) transmitter board converts the parallel display bus to a
serialized, low voltage, differential signal bus in order to transmit the video signal to the LCD interface
PCA.
13.8.2. FRONT PANEL TOUCHSCREEN/DISPLAY INTERFACE PCA
The front panel interface PCA controls the various functions of the display and touchscreen. For driving
the display it provides connection between the CPU video controller and the LCD display module. This
PCA also contains:
 Power supply circuitry for the LCD display module
 A USB hub that is used for communications with the touchscreen controller and the two
front panel USB device ports
 The circuitry for powering the display backlight
13.9. SOFTWARE OPERATION
The 9110T NO
x
Analyzer has a high performance, VortexX86-based microcomputer running
WINDOWS CE. Inside the WINDOWS CE shell, special software developed by Teledyne interprets
user commands via the various interfaces, performs procedures and tasks, stores data in the CPU’s
various memory devices and calculates the concentration of the sample gas.
Figure 13-31: Basic Software Operation