DCA077534
CAE030387
Rev. B | 08.10.17
7
Operating Instructions
Remote Voltage/Signal Monitoring
VPX supply voltages and SYSRESET signal can be monitored remotely from an enclosed chassis. All the signals are pinned
on the DSUB-15 connector. Table 4 provides the DSUB-15 connector pin out.
Pin Name
1
2
3
Signal
CH) ( White Pin, Yellow Wire, Top Thermocouple)
ALOMEGA(-) ( Green Pin, Red Wire, Top Thermocouple)
-12V Aux (Remote Voltage Monitoring)
4
5
6
3.3V Aux (Remote Voltage Monitoring)
+12V Aux (Remote Voltage Monitoring)
Vs3 +5V (Remote Voltage Monitoring)
7
8
9
Vs1 +12V (Remote Voltage Monitoring)
Vs2 +12V (Remote Voltage Monitoring)
CH) ( White Pin, Yellow Wire, Bottom Thermocouple)
10
11
12
ALOMEGA(-) (Green Pin, Red Wire, Bottom Thermocouple)
No Connection
V CNTRL GND (Voltage Control GND)
13
14
15
V CNTRL (Voltage Control)
GND (Remote Voltage/Signal Monitoring GND)
SYSRESET (Remote Signal Monitoring)
Table 4
Any standard DSUB-15 mating female connector and pins can be used to connect to the DSUB-15 connector on the load
card. The only exception is the set of pins used for K-Type thermocouples. This is discussed in the next section.
Temperature Monitoring
The thermal impedance of the thermal management interfaces is very critical in order to transfer all the heat generated by
plug-in modules. Therefore two K-Type thermocouples are placed inside each thermal management interface to monitor their
temperature. Any standard off-the-shelf K-Type thermocouple acquisition hardware can be used to record the temperature
for analysis. The thermocouple output connections are provided on the DSUB-15 connector using K-Type thermocouple
crimps. When making a harness to connect to the thermocouples mating pins, the K-Type extension wire with K-Type crimps
must be used. Using regular crimps and wire to interface to the thermocouple on DSUB-15 connector would give incorrect
temperature readings. Table 5 provides the recommended crimp and wire part numbers available from Omega.
