Tektronix SPG8000A, Руководство пользователя

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SPG8000A User Manual 127
System menu factory default settings .)
Use these buttons to re call, save, delete, or rename existing presets:
• Recall : Click to recall the instrument settings saved in the selected preset.
•
Save : Click to save the current instrument settings to one of the 13
available presets, shown in the drop - down list.
•
Delete : Click to delete the contents of the specified preset in the drop - down
list. You cannot delete the se presets: Power on Default, User Default, and
Factory Default.
•
Rename : Click to rename the selected preset from the drop - down list.
When you click the Rename button, another menu appears where you can
enter the new name. You can enter a text string of up to 32 characters.
Click OK after entering the new name.
General Settings Submenu
Select this submenu to enable or disable the alarm beeper, adjust the front panel
LCD contrast, select the active power supply, and to update the firmware through
the Network.
•
Enable Alarm Beeper : Select the check box to enable the beeper function
in the instrument. When enabled, the beeper alerts the user when a fan fault
condition has been detected. Clear the check box to disable the alarm
beeper.
• Front Panel LCD Contrast : Enter a number between 0 and 40 to adjust the
contrast of the LCD display. The default value is 8.
•
Active Power Supply
: When two power supply modules are installed in
the instrument (Option DPW) and both are connected to power, use this
menu item to select which of the two supplies is the primary (active)
supply.
Note: It is recommended that you configure the supply with the most temperature
weighted hours to be used as the primary supply. This allows for the newer supply
to be preserved so it can provide the best possible backup should the primary
supply fail. For more information about how to operate an instrument with two
power supplies, see SPG8000A Installation and Safety Instructions .
•
SPG A/V output EPOCH Selection . Use this setting to change the timing
on the Black outpu ts.
Note: For PTP systems, set this to the 1970 epoch.
•
Upgrade Firmware (through Network) . Click this button to upgrade the
instrument firmware using the Network. To upgrade the firmware using a
USB drive, you must use the instrument front panel to perform the
upgrade. (See Upgrade the instrument firmware .)
When you click the Upgrade Firmware button, a dialog box displays a
warning that the firmware upgrade procedure will disrupt instrument