Led Behavior; Power-On Procedure; Table 3.2: Unity 550 Status Led Indications - Wegener Unity 550 User Manual

Note: ms = 1/1000 second.

LED behavior

Within approximately 15 seconds of power up, the IRD gives an indication of stable
operation. It initializes all system components and supplies an operational status. A steady
Green LED indicates that it is locked on a carrier and is capable of producing output (Audio/
Video/Data).
If there is some problem with the IRD or the signal it is receiving the LED flashes Red for
alarm conditions or Amber for warning conditions. In general, alarms indicate that the unit
cannot produce output, while Warnings indicate that, although output is being produced,
there is a problem that could require attention. The most common conditions that produce
alarms or warnings are listed below.
Mode
Power Up
Alarm
Warning
Normal

3.3 Power-On Procedure

Apply power to the IRD. The unit initializes various devices and configures itself according
to the EEPROM settings. It then waits for the receiver section to complete its power up test,
which takes about 10 seconds.
When the receiver section passes its test, the IRD sends a tune command and the
Welcome Banner screen to the serial port.(An example is shown in Figure 3.2 below.) If the
unit is in Terminal mode, the banner displays on the terminal screen. The IRD then enters
Alarm mode until all of the alarm conditions are cleared.
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by blinking 5 times, etc. The LED blinking RED indicates an alarm,
while AMBER indicates a warning.

Table 3.2: Unity 550 Status LED Indications

Condition
IRD is in process of powering up
Installation Mode
Carrier Table Search
Header Search Mode
Eb/NO Alarm
Not Authorized
Alarm Selected Program not available
Selected Audio not available at Port 1
Marginal Eb/NO
COMPEL COMPEL
Required but No
Selected Audio not available at Port 2
RF Level Low
RF Level High
COMPEL
Normal Mode for a
COMPEL
Addressed within last 5 seconds
COMPEL within last 2 minutes
800072-01 Rev. A
Unity 550 User's Manual
in the last 2 minutes
-not-Required Unit
Status LED Display
Amber flutter
Red Blink = 3
Red Blink = 4
Red Blink = 5
Red Blink = 7
Red Blink = 11
Red Blink = 12
Amber Blink = 1
Amber Blink = 2
Amber Blink = 3
Amber Blink = 4
Amber Blink = 5
Amber Blink = 6
Green
Green Flutter
Green
15