Chapter 2
Installation and Configuration
©
National Instruments Corporation
2-9
•
If the power switch LED is flashing green, the air-intake temperature
has exceeded the chassis operating range.
Caution
Power supply output voltages out of regulation may result in equipment
malfunction, incorrect data, or failure of system to boot.
•
If the power switch LED is flashing red, the power supply outputs are
not within voltage regulation requirements.
Remote Voltage Monitoring and Control
The PXI-1044 chassis supports remote voltage monitoring and inhibiting
through a male 9-pin D-Sub connector located on the rear panel. Table 2-1
shows the pinout of the 9-pin D-Sub connector.
Table 2-1.
Remote Inhibit and Voltage Monitoring Connector Pinout
D-Sub Pin
Signal
1
Logic Ground
2
+5 VDC
3
Reserved
4
+3.3 VDC
5
Inhibit (Active Low)
6
+12 VDC
7
Reserved
8
–12 VDC
9
Logic Ground
1
2
3
4
5
6
9
7
8
