Table 5.
NI 5421 AWG Module Front Panel Connectors
Connector
Use
CH 0
Connects to the IF INPUT connector on the NI 5610 front
panel.
This connector is the output terminal for an IF waveform
for upconversion to the desired RF frequency.
CLK IN
Connects to the REF OUT connector on the NI 5610 front
panel.
This connector is the input terminal for the NI 5421
Reference Clock signal.
PFI 0
Both connectors accept a trigger from an external source to
start or step through signal generation. Both terminals are
bidirectional SMB connectors.
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 AWG Module Front Panel LEDs
LED
Indications
ACCESS Indicates the basic hardware status of the module.
OFF—The module is not yet functional or has detected a problem with a power
rail.
AMBER—The module is being accessed.
Accessed
means that the device setup
registers are being written to in order to control the device or load waveforms.
GREEN—The module is ready to be programmed by NI-RFSG.
ACTIVE Indicates the state of the 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 a waveform.
RED—The module has detected an error state; this state may indicate a PLL lock
failure or a thermal shutdown condition.
14
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