Comtech EF Data CPLINK - Manual (Page 17)

15
12. Current Fault Status
Main Menu > Current Fault Status (Ref. Fig. 12)
XCVR#
XCVR1 (transceiver #1 select)
XCVR2 (transceiver
#2 select)
XCVR Internal Voltages: The XCVR unit monitors the 6 internal DC voltages:
24,20,12,10, +5 and –5 for the currently selected XCVR. The monitor circuitry will
display a fault (FT) if any of these voltages are +/- 10% out of range. These voltages are
updated when the current fault status screen is entered, or if the currently selected XCVR
is changed, or if the (Get Data) button is pressed.
Lock Detects: The XCVR monitors the 4 phase lock loops (PLLs) for each XCVR. A
fault is displayed for any and each PLL that is not locked. These lock statuses are
updated when the (Get Data) button is pressed, or as in the above selection.
Currents & Temperatures: The LNA and
Fan are monitored for excessive and low
currents. A fault is displayed if these currents
are out of their prescribed window. If the
temperature rises out of specification for the
XCVR, a fault will appear in the Heat Sink
field. As the heat sink temperature continues
to rise, the XCVR will automatically disable
the FET amplifiers and display a shutdown
fault.
Processor: The Chksum (checksum), IIC
Bus, and the battery are monitored for proper
operation and will display a faulted condition
(FT) when the processor system is not
functioning properly.
(Return) button – returns the user back to the Main Menu and will NOT query the
currently selected XCVR for data.
(Get Data) button – will query the selected XCVR and refresh the current data screen.
Fig. 12