Description
R&S
®
TS-PWA3
33
User Manual 1157.8143.12 ─ 17
●
4 x optocoupler inputs (for PLC or handling systems)
●
2 x enable for additional supply voltages
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4 x measurement of the cPCI supply voltages
●
1 x measurement of the internal temperature
PXI Trigger
The input/output of trigger signals (X20) is controlled separately for each signal. On the
output side the signals are terminated by pullup resistors and protected by self-healing
fuses and d.c. clamp diodes. The external trigger lines are available at connector X30.
Floating Outputs
4 PhotoMos relays (with internal current limiter) are triggered by a µC port. The signals
are available at connector X30.
Floating Inputs
A µC port reads the status of 4 optocoupler inputs (2 x 2-pin). The current at the inputs
is limited so that inputs signals can be fed in unconditioned within a wide voltage
range. These inputs are available at connector X30.
Output Voltages
Two voltage regulators with output-enable control generate switchable, short-circuit
proof voltages at X30. These voltages can be used to supply external components
(e.g. signal lamps).
Dependent on variant, the following voltages are provided:
Table 3-10: R&S TS-PSYS2 1157.8508.02
X30.20
4.5 V
X30.21
11.5 V
Table 3-11: R/S TS-PSYS2 1157.9910.20
X30.20
5.0 V
X30.21
12.0 V
Measuring the cPCI Supply Voltages
The supply voltages present at connector X20 (+5 V / +12 V / -12 V) are measured
with the A/D ports of the
μ
C.
Temperature Measurement
An A/D port of the
μ
C is used to measure the ambient temperature of the plug-in mod-
ule. A temperature-to-voltage converter is used as the sensor. The temperature-pro-
portional analog voltage is also output at connector X30 for monitoring purposes
(TEMP_OUT).
System Module R&S TS-PSYS2
