ETAS ES800 - Display of the Function State of Individual Interfaces (All Modules)

73 | Functions of the System
ETAS ES800 System | User Guide
"TEMP" LED
"SYNC" LED
11.1.3 Display of the Function State of Individual Interfaces (All Modules)
LEDs that indicate the function state of the interfaces are assigned to the connec-
tions of the modules. The displays of the LEDs are described in relation to the
assigned interface (see chapter
“Interfaces of the Modules” on page 88).
TEMP LED Description State
Off The temperature inside the housing is in
normal operating range
Flashing red,
0.5 s on/0.5 s off
The temperature inside the housing has
reached the critical range; the module is
still functional
Illuminated red The temperature inside the housing has
exceeded the critical range and the
module has shut down; if the tempera-
ture inside the housing returns to the
normal operating range, the module
starts up again
SYNC LED Description State
Off No synchronization
Flashing blue,
0.5 s on/0.5 s off
The module is the IEEE1588 synchroni-
zation master or the module is not
externally synchronized (module in
standalone mode)
Illuminated blue The module is the IEEE1588 synchroni-
zation slave; the module is synchronized
by another module
NOTE
If the LEDs "SYNC" flash simultaneously on several modules of an ES800 stack,
an IEEE1588 synchronization error has occurred. Observe the notes in chapter
“Problems with ES800 Modules” on page 137.