National Instruments PXI PXI-1006 用户手册
Chapter 2
PXI-1006 Features
© National Instruments Corporation
2-7
Remote Power Monitoring and Inhibiting Interface
The PXI-1006 chassis supports remote power monitoring and inhibiting via
a 9-pin D-sub connector located on the rear panel. Table 2-1 shows the
pinout of the DB-9 connector.
a 9-pin D-sub connector located on the rear panel. Table 2-1 shows the
pinout of the DB-9 connector.
Using the Inhibiting Feature
You can use the Inhibit signal (active low) to turn off the power supply
outputs. To use this feature, connect the Inhibit pin (pin 5) to a Logic
Ground pin (pin 1 or 9). Make sure the front (standby) switch is in the ON
position. As long as the connection is made, the power supply inhibits its
DC outputs. DC output resumes when Inhibit is no longer connected. Note
that the power (standby) switch, located on the front of the chassis, uses this
inhibiting feature. For remote reset, connect a momentary switch between
pin 5 and pin 1 (or pin 9).
outputs. To use this feature, connect the Inhibit pin (pin 5) to a Logic
Ground pin (pin 1 or 9). Make sure the front (standby) switch is in the ON
position. As long as the connection is made, the power supply inhibits its
DC outputs. DC output resumes when Inhibit is no longer connected. Note
that the power (standby) switch, located on the front of the chassis, uses this
inhibiting feature. For remote reset, connect a momentary switch between
pin 5 and pin 1 (or pin 9).
Table 2-1. DB-9 Connector Pinout
DB-9 Pin
Signal
1
Logic Ground
2
+5 V
3
Reserved
4
+3.3 V
5
Inhibit*
6
+12 V
7
Reserved
8
–12 V
9
Logic Ground
6
7
8
9
1
2
3
4
5