-IO Expansion Board Ensemble Epaq Hardware Manual
3.6. Opto-Isolated Outputs
The outputs are software configurable as sourcing or sinking. The outputs are driven by PS2802-4 opto-
isolators rated for 24 volts maximum and up to 80 mA/output @ 20°C.
Outputs must be connected in either all sinking or all sourcing mode. Figure 3-11 and Figure 3-12 illustrate
how to connect to an output in current sinking and current sourcing modes, respectively.
N O T E : Power supply connections must always be made to both the Output Common Plus (OP) and
OutputCommon Minus (OM) pins as shown in Figure 3-11 and Figure 3-12.
Table 3-14: Port 1 Opto-Isolated Output Connector Pin Assignment
Pin# Label Description In/Out/Bi
1 OP Output Common Plus Input
2 OM Output Common Minus Input
3 0 Output 0 (Optically-Isolated) Output
4 1 Output 1 (Optically-Isolated) Output
5 2 Output 2 (Optically-Isolated) Output
6 3 Output 3 (Optically-Isolated) Output
7 4 Output 4 (Optically-Isolated) Output
8 5 Output 5 (Optically-Isolated) Output
9 6 Output 6 (Optically-Isolated) Output
10 7 Output 7 (Optically-Isolated) Output
Table 3-15: Opto-Isolated Output Mating Connector
Type Aerotech P/N Phoenix P/N
Tightening
Torque (Nm) Wire Size: mm
2
[AWG]
10-Pin Terminal Block ECK01294 1881406 N/A 0.5 - 0.080 [20-28]
W A R N I N G : Opto-isolated inputs and outputs should not be powered by the user output
power. Doing so would compromise the isolation provided by the opto-isolator.
N O T E : Outputs must be connected as all sourcing or all sinking.
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