National Instruments 323006A-01 User Manual download pdf (Page 19)

Chapter 2 PXI-1006 Features

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.

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

pin5andpin1(orpin9).

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

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 45 46

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National Instruments 323006A-01 User Manual Page 19