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228 Chapter 11
Peripheral Devices
N5102A Digital Signal Interface Module
Generating Digital Data
Press the
N5102A Off On softkey to On.
Digital data is now being transferred through the N5102A module to the device. The green status
light should be blinking. This indicates that the data lines are active. If the status light is solidly
illuminated (not blinking), all the data lines are inactive. The status light comes on and stays on
(blinking or solid) after the first time the N5102A module is turned on (
N5102A Off On to On). The
status light will stay on until the module is disconnected from its power supply.
The interface module can only be turned on while a modulation format is active. If the modulation
format is turned off while the module is on, the module will turn off and an error will be reported.
NOTE If changes are made to the baseband data parameters, it is recommended that you first
disable the digital output (
N5102A Off On softkey to Off) to avoid exposing your device and the
N5102A module to the signal variations that may occur during the parameter changes.
Operating the N5102A Module in Input Mode
This section shows how to set the parameters for the N5102A Option 004 module using the signal
generator UI in the input direction. Each procedure contains a figure that shows the softkey menu
structure for the interface module function being performed.
Refer to “Connecting the Clock Source and the Device Under Test” on page 216 and configure the test
setup.
Accessing the N5102A Module User Interface
All parameters for the N5102A module are set with softkeys on the PSG signal generator.
Press
Aux Fctn > N5102A Interface.
This accesses the UI (first-level softkey menu shown in Figure 11-15) that is used to configure the
digital signal interface module. Notice the graphic, in the PSG display, showing a setup where the
N5102A module is generating its own internal clock signal. This graphic changes to reflect the
current clock source selection.