Black Box Recorder
This procedure only applies to instruments with serial number prior to MY59100101
(refer to Firmware Updates).
On units with later serial numbers MY59100101 and up, the BBR function is
integrated on the processor board and can only be ordered as a factory-installed
Option BBR. These units do not have an access cover located on the bottom of the
chassis as described in this section.
On units with prior serial numbers, the N7908A Black Box Recorder accessory board installs in an
access port on the bottom of the chassis. The following installation procedure applies to these units.
Refer to Black Box Data Recording for information about using the Black Box Recorder.
Installing the BBR
Turn off the instrument, remove the power cord, and turn the unit over.
Observe all precautions for handling electrostatic discharge sensitive devices when
installing the BBR board.
1. Remove the access cover by loosening the two screws.
2. Position the BBR board with the connector facing down and snap it into the unit.
3. Replace the access cover and tighten the screws..
4. Check the box labeled "Black Box Recorder" on top of the unit to indicate that the BBR option is
installed.
If the BBR drive has been removed from the instrument, refer to BBR Status for more
information.
Keysight N6900/N7900 Series Operating and Service Guide 91
2 Installing the Instrument
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