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 in Table
.
3.2
Table 3.2: Unity 552 Front Panel Status LED Alarm and Warning Indications
Diagterm
The Serial Port (RS-232) can be used to connect to a terminal console. After the IRD is
Terminal
powered on, a diagterm command-line interface (CLI) can be used to monitor and control
the system. For more information on diagterm and syntax of the individual commands,
(Commands)
please see an appendix. Figure 3.3 illustrates the Help screen on the diagterm terminal.
www.wegener.com
Mode
LED Status
Red blink = 2
Red blink = 3
Alarm
Red blink = 4
Red blink = 5
Red blink = 11
Amber blink = 1
Amber blink = 2
Amber blink = 4
Warning
Amber blink = 5
Amber blink = 6
Amber blink = 7
Normal
Green
Figure 3.3: Diagterm Terminal Help Screen
800089-01 Rev. C
Unity 552 User's Manual
Condition
No carrier
No RF signal
In recovery
Eb/No alarm
Not authorized
No response from SEC_MICRO
Marginal Eb/No
Selected audio not available
RF too low
RF too high
Application download failed
Normal operation
15