Npaq® Hardware Manual
Installation and Configuration
2.7.1. PSO Opto Output (J7)
The PSO OPTO OUT is electrically isolated and does not require an external power source to operate. The
output may be used to source (or sink) current (as shown in
and
).
By default, JP16 is installed in the 1-2 position for normally open operation. If the PSO-NC option is ordered,
JP16 is installed in the 2-3 position giving normally-closed operation. This mode should be used with caution
since the Npaq cannot maintain the closed state when its AC mains power is turned off. The PSO-NC (JP16
2-3 setting) should not be used when fail-safe operation is required. JP16 jumper settings are shown in
. Refer to
for the JP16 jumper location.
Table 2-23:
PSO Output Polarity Settings for JP16
PSO Output Polarity
JP16 Setting
Normally Open
1-2 * (Recommended)
Normally Closed
2-3
Table 2-24:
Output Specifications
Description
Specification
Maximum Voltage
24 V
Current
250 mA
Latency
120 ns
Maximum Frequency
12.5 MHz
Figure 2-26:
PSO Output Sources Current
Figure 2-27:
PSO Output Sinks Current
60
Chapter 2
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