Vaisala LT31 - Figure 23 Block Diagram LTC112; Interface Unit LTI111;211

Chapter 3 ______________________________________________________ Functional Description
VAISALA _______________________________________________________________________ 55
The basic principle of LTC112 is shown in Figure 23 below.
CPU
including 8-channel
10bit ADC
Alignment
Control
Heater
Control
Blower
Control
Beeper
Window
Temperature
Measurement
EEPROM
Power
Supply
Interface
Enclosure
Temperature
Measurement
WinReceiver
Temperature
Measurement
2-channel
20bit ADC
Window Receiver
Detector
DC
Measurement
Window Transmitter
Module
Main
Receiver
Module
or
Main
Transmitte
r
Module
0401-038
Figure 23 Block Diagram LTC112
Interface Unit LTI111/211
The interface unit LTI111/211 (see Figure 24 on page 56) consists of the
AC power supply (FSP102, transformer, and switch), master CPU
LTC212 in the case of the receiver interface unit, and the optional backup
battery LTBB111.