User's Manual Part 1

Table Of Contents
3EM21522AAAA OPERATION
Issue 1, March 2008 DTR-0200-SA-SIRIUS
5-41
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Figure 5 - 46 Signal Processing Unit (SPU) Front Panel (Sheet 2 of 3)
SPU ALARMS
INDICATOR COMMENTS INDICATION
AC Fault occurs when 12 Vdc is out of limits Normal = Green
Fault Alarm = Red
MODULATOR Caused by any alarm from the modulator includ-
ing Communication error with the modulator
Normal = Green
Fault Alarm = Red
UPCONVERTER This LED is red when there is a communication
error with the upconverter or the upconverter’s
LO PLL is not locked
Normal = Green
Fault Alarm = Red
INPUT INTERFACE VSAT Communication error or any error coming
from the VSAT
Normal = Green
Fault Alarm = Red
SYNCHRONIZATION ALARMS
1 PPS/10MHz STATUS PLD not locked or 1PPS/10MHz alarms on the
modulator
Normal = Green
Fault Alarm = Red
STREAM LOCK No lock to input stream alarm from the modulator Normal = Green
Fault Alarm = Red
SFN TIMING An alarm from the modulator indicating that the
Single Frequency Network margins are violated
Normal = Green
Fault Alarm = Red
HPA ALARMS
OUT POWER HPA Forward Power Fault Normal = Green
Fault Alarm = Red
REFL POWER HPA Reflected power fault or Repeater Reflected
power fault
Normal = Green
Fault Alarm = Red
ALARM Any alarm from the HPA will cause the LED to go
red
Normal = Green
Fault Alarm = Red
AC MAINS Any summary alarm from the HPA power supply
modules will cause the LED to go red
Normal = Green
Fault Alarm = Red