Annexes
R&S
®
ZNA
1779User Manual 1178.6462.02 ─ 29
12.2 System recovery
The system drive of the R&S ZNA is delivered with a recovery partition that allows you
to restore the original operating system image and firmware.
To access the recovery functionality, open the Windows control panel, select "Update &
Security" > "Recovery" > "Restart Now" and wait for the "R&S Recovery Environment"
to start.
You can also use the Recovery tab of the "System Config" dialog to boot into the
recovery environment.
To restore the original operating system image and firmware, proceed as follows:
1. In the "R&S Recovery Environment" select "Factory Default Restore"
2. Wait for the reimaging process to complete
3. Reboot the instrument
After the restore, upgrade to the desired firmware version (see Chapter 12.1.1, "Firm-
ware installation", on page 1774).
12.3 Interfaces and connectors
This chapter provides a detailed description of the rear panel connectors of the
R&S ZNA. An overview of the available front and rear panel is given in the Getting
Started guide (see Chapter 3.2, "Instrument tour", on page 34).
EMI Suppression
Notice the instructions in "Cable selection and electromagnetic interference (EMI)"
on page 27.
12.3.1 Rear panel connectors
The rear panel of the R&S ZNA provides various connectors for external devices and
control signals.
12.3.1.1 User Port
25-pole D-Sub connector used as an input and output for low-voltage (3.3 V) TTL con-
trol signals. Some of the lines can be configured (see CONTrol commands and OUT-
Put commands).
Interfaces and connectors
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