Triconex Trident - I⁄O Extender Modules

Input/Output Modules 99
Chapter 3 System Description
Model 3381 Pulse Input Module Simplified Schematic
+
–
Isolation
Filtering
Isolation
Filtering
Isolation
Filtering
Isolation
Filtering
Individual Point Field Terminations
Isolated
Bus
Transceiver
ASIC
Triplicate
d
I/O Bus
PI Module Typical Point (1 of 6)
A
B
C
Isolated
Bus
Transceiver
Isolated
Bus
Transceiver
ASIC
ASIC
Isolation
Filtering
Isolation
Filtering