NI RF Signal Generators Getting Started Guide 26 ni.com
PFI 0 Bidirectional SMB connectors. As an input, the PFI terminals can accept
a trigger from an external source to start or step through signal generation.
PFI 1
DIGITAL DATA &
CONTROL
Routes the 16-bit digital pattern outputs, digital pattern clock output,
trigger outputs, trigger inputs, and a clock input.
Table 6. NI 5421/5441 AWG Module Front Panel LEDs
LED Indications
ACCESS Indicates the basic hardware status of the NI 5421/5441 AWG module.
This LED functions identically to the ACCESS LED on the
NI 5610 upconverter module front panel.
OFF—The module is not yet functional or has detected a problem with a power
rail.
AMBER—The module is being accessed.
GREEN—The module is ready to be programmed.
ACTIVE Indicates the state of the NI 5421/544 1 AWG module.
OFF—The module is not armed or triggered.
AMBER—The module is armed and waiting for a Start trigger.
GREEN—The module has received a Start trigger and is generating awaveform.
RED—The module has detected an error state; this may indicate PLL unlocking,
self-test failure, or calibration failure.
Table 5. NI 5421/5441 AWG Module Front Panel Connectors (Continued)
Connector Purpose