Tektronix SPG8000 Technical Reference page 163

SYSTEM button menu
Hardware Fault. When enabled, sends an alarm signal to the selected GPI output
when a hardware fault in the instrument is detected. Use the left (◄) or right (►)
arrow button to select Enable or Disable. Press the ENTER button to confirm the
selection. Use the System button DIAGNOSTICS submenu to view information
for all conditions that can trigger this fault. (See page 157, DIAGNOSTICS
submenu.)
Power Supply Fault. When enabled, sends an alarm signal to the selected GPI
output when a fault with either Power Supply module is detected. Use the left
(◄) or right (►) arrow button to select Enable or Disable. Press the ENTER
button to confirm the selection.
Lock Error. When enabled, sends an alarm signal to the selected GPI output when
a loss of lock to the GPS or genlock reference input signal to the instrument is
detected. Use the left (◄) or right (►) arrow button to select Enable or Disable.
Press the ENTER button to confirm the selection.
Lock Warning. When enabled, sends an alarm signal to the selected GPI output
when a near loss of lock to the GPS or genlock reference input signal to the
instrument is detected. The threshold for near loss of lock is approximately 2 ×
10e-6 from the ends of the tune range. Use the left (◄) or right (►) arrow button
to select Enable or Disable. Press the ENTER button to confirm the selection.
Time Error. When enabled, sends an alarm signal to the selected GPI output
when the selected time input is invalid. For example, if LTC is the selected time
input and the signal is missing or discontinuous. Use the left (◄) or right (►)
arrow button to select Enable or Disable. Press the ENTER button to confirm
the selection.
Time Warning. When enabled, sends an alarm signal to the selected GPI output
when the selected time input is present and valid, but not meeting all expectations.
For example, if LTC is the selected time input but the timing between LTC and the
genlock input does not meet the SMPTE 12M specification. Use the left (◄) or
right (►) arrow button to select Enable or Disable. Press the ENTER button to
confirm the selection.
Alarm Time. When enabled, sends an alarm signal to the selected GPI output for
the one second when the program time counter matches the Alarm Time value
configured in the TIME button menu. (See page 175, ALARM TIME.) Use the left
(◄) or right (►) arrow button to select Enable or Disable. Press the ENTER
button to confirm the selection.
SPG8000 Technical Reference 151