Comtech EF Data SFC1800A - Manual (Page 32)

User Interfaces SFC1800A Synthesized Frequency Upconverter
4-8 TM111 - Rev. 1.0
+15V VOLTAGE: Displays the voltage of the System Supply +15V.
- 15V VOLTAGE: Displays the voltage of the System Supply -15V.
MON DACS:
MIXER DAC VAL: Displays the decimal value written to the RF Attenuation
DAC. This value is not under user control.
MIXER DAC VOL: Displays the expected voltage output of the RF
Attenuation DAC.
REF DAC VALUE: Displays the decimal value written to the VCO Reference
Control DAC. This value is entered by the user in the
TEST\REF OFFSET Menu, and cannot be changed from
this Menu.
REFDAC VOLTAGE: Displays the expected voltage output of the VCO
Reference Control DAC.
EVENT BUFF
The Event Buffer stores any faults that occur, including
start up procedures, along with a time/date stamp.
PRESS CLR TO
ERASE EVENTS:
Pressing the when this screen is displayed
will erase all of the events currently stored in the Event
Buffer.
4.2.5 Alarms Menu Options and Parameters
For the alarms listed below, the PASS/FAIL displayed is only an indicator and cannot be changed
by the user. The MASK/UNMASKED Field, however, does allow user input. Masking an alarm
will cause it to be ignored by the unit if that alarm fails. The LCD will display FAIL, but the unit will
otherwise not respond to the Fault. This function can aid in troubleshooting system problems.
ACTIVE ALRMS:
MAJOR:
LO FAULT: {PASS, FAIL/UNMASKED, MASKED}
Reports an alarm when the Synthesizer Module
indicates an unlocked condition.
SIGNAL FAULT: {PASS, FAIL/UNMASKED, MASKED}
Reports a failure when there is an IF Detect Fault.
BACKUP FAULT: {PASS, FAIL/UNMASKED, MASKED}
backup converter only. Indicates that a Backup process
has failed.
NO BACKUP: {PASS, FAIL/UNMASKED, MASKED}
backup converter only. Indicates that a Faulted Prime
could not be backed up.