Maintenance Handbook

SBS-800 Series Operator & Planned Maintenance Handbook
Chapter 7: Local Control
KH-1601-2 Issue 6
Page 42 of 80
7.1.5 Alarms
When the system is in local control
Note
and an alarm condition exists, the lower right button will flash
red and an audible alarm will be generated.
VIEW ALARM CONDITION: To view the alarm
message/condition, select the status menu and the alarm
condition(s) will be displayed in the lower section of the LCD
display.
Where present, the  symbol against the lower right button
indicates that additional alarm conditions exist. Pressing the 
button scrolls through any additional alarm messages.
SILENCE THE AUDIBLE ALARM: To silence the alarm, select
the Status menu and then press the lower right hand (red/flashing)
button.
The audible alarm will be silenced but the message will continue
to display until the condition is cleared.
Example of RDU front panel
EXAMPLE: In the example shown below, an X-Band transceiver is in local control with a PSUB PWR
ALARM displayed indicating that the AC mains input B has failed, is switched OFF or there is a fault
with the power supply.
The  and  arrows allow navigation away from the alarm
messages to other functions available within the Status menu (see
section 7.2.3).
Additional alarms conditions are present as indicated by the 
symbol.
The  symbol returns the display to the main menu.
Example of system status
with active alarms
When an alarm has been acknowledged and more than one alarm condition exists, the display
automatically scrolls through the list of alarms.
NOTICE: ALARMS IN REMOTE MODE
When the Radar Distribution Unit is set to Remote, Alarm messages are still generated and displayed
on the RDU but the audible alarm is not sounded and flashing warning LED is not displayed.
CONTROL STATUS