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REV H
Operation, Rack and Digital HPAs
Figure 1, Rackmount Front Panel LED Display
Front Panel Display and Softkeys
The display is four lines by twenty characters. The display
shown in Figure 2 is the Status 1 menu. The information
displayed is generated by the amplifier microprocessor. The
softkeys are shown to the right of the display. The softkeys are
associated with the display line to the left of the softkey. For
example, the top softkey (Softkey No.1) is associated with the
top line of the display.
Table 1, LED Indicator Definitions
Nomenclature Color
Functional Description (When lit)
Power
Green Indicates AC Power Switch (circuit breaker) is ON, and
prime power is applied to amplifier.
FTD
Amber Filament Time Delay cycle (FTD) in process. Goes dark
when cycle completed. Typically a 3 minute cycle.
Standby
Amber Amplifier in “ready” state. High voltage can be turned
ON. Mode is deactivated when High Voltage is turned
ON.
HV ON
Green Indicates high voltage is ON.
Htr Standby
Amber Indicates amplifier in Heater Standby Mode. Mode is
deactivated when High Voltage is turned ON.
Local
Green Amplifier in LOCAL
Remote
Green Amplifier in REMOTE
Summary Fault Red
Amplifier is faulted.
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