1-22 N67xx DUT Power Supply Installation
Inhibit Input
Pin 3 can be configured as a remote inhibit input. The polarity of pin 3 can also be
configured. Pin 8 is the common for pin 3.
The Inhibit Input function lets an external input signal control the output state of all
the output channels in the DUT power supply. The signal latency is 5 microseconds.
Pin 3 can be programmed for the following Inhibit modes, which are stored in
non-volatile memory:
From the front panel:
1 Select System\IO\DigPort\Pins.
2 Select pin 3, then Function, then Inhibit In.
3 In the Polarity field, select either Positive or Negative.
4 Select Protect\Inhibit.
5 Select either Latching or Live.
6 To disable the Inhibit signal, select Off.
Using SCPI commands:
To configure the Inhibit function:
DIG:PIN3:FUNC INH
To select the inhibit input polarity:
To latch the Inhibit signal:
OUTP:INH:MODE LATC
To set the Inhibit signal live:
OUTP:INH:MODE LIVE
To disable the Inhibit signal:
OUTP:INH:MODE OFF
Table 1-7 Inhibit modes
Mode Description
LATChing Causes a logic-true transition on the Inhibit input to disable all outputs. The
outputs will remain disabled after the inhibit signal is received.
LIVE Allows the enabled outputs to follow the state of the Inhibit input. When the
Inhibit input is true, the outputs are disabled. When the Inhibit input is false, the
outputs are re-enabled.
OFF The Inhibit input is ignored.
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