XC2 Hardware Manual
Chapter 3: -EB1 I/O Option Board
Isolated Signals
This output signal is a fully-isolated 5-24V compatible output capable of sourcing or sinking current. This
output is normally open and only conducts current when a PSO fire event occurs.
The PSO Isolated Outputs are overload protected and will turn off if the maximum output current is
exceeded.
Figure 3-2:
PSO Output Sources Current
Figure 3-3:
PSO Output Sinks Current
TTL Signals
This output signal is a 5V TTL signal which is used to drive an opto coupler or general purpose TTL input.
This signal is active high and is driven to 5V when a PSO fire event occurs.
Figure 3-4:
PSO TTL Outputs Schematic
www.aerotech.com
61
