25
Relay
Control
Microcontroller
12V
GROUND
RESET
CLOCK
U1
U2
CR6
Sensor #1
12V
GROUND
RESET
CLOCK
Multiplexer/Terminal Board
AG
Sensor
Shield
U3
U4
Sensor #16
Sensor
Shield
1H
2H
1L
2L
S1
31H
32H
32L
31L
S16
Figure 27 - 16-Channel Switching Block Diagram
Relay
Control
Microcontroller
12V
GROUND
RESET
CLOCK
U1
U2
CR6
Sensor #1
Sensor #32
12V
GROUND
RESET
CLOCK
Multiplexer/Terminal Bo
AG
Sensor
Shield
Sensor
Shield
1H
1L
S1
32H
32L
S16
Figure 28 - 32-Channel Switching Block Diagram