User`s guide

Using the System Utilities 4
Model N6705A User’s Guide 93
After you have configured pin 3 as the remote inhibit input, you must
also configure the operating mode of the inhibit signal. Press the
Settings key to access the Source Settings. Navigate to and select
Protection. Then press Enter.
Select the Inhibit dropdown list. The inhibit signal can be live,
latched, or off. The Inhibit operating mode is stored in non-volatile
memory.
Inhibit Function Description
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.
Latched
Causes a logic-true transition on the Inhibit input to
disable all outputs, which will remain disabled.
Off
The Inhibit input is ignored.
Outputs can only be controlled by the inhibit signal if they have
previously been turned on by the front panel On/Off key or a remote
command. If an output is turned on while the Inhibit input is true,
the output will remain off.
When an Inhibit signal turns off the outputs, the front panel INH
indicator comes on and the INH bit is set in the Questionable Status
Event register. To re-enable the outputs if the inhibit signal was
latched, you must clear the protection function as explained in
chapter 3.
Fault/Inhibit System Protection
As shown in the following figure, when the Fault outputs and Inhibit
inputs of several mainframes are daisy-chained, an internal fault
condition in one of the mainframes will disable all of them without
intervention by either the controller or external circuitry. Note that
when using the Fault/Inhibit signals in this manner, both signals
must be set to the same polarity.