
Installing the AIM module into a rack
AIM2505A Technical Manual V2.03
16
3.3.2 Status Indicator LEDs
There are three status indicator LEDs (green and red) on the circuit board, which can
be seen if there are no other modules next to it in the rack (refer to “Module
identification” on page 10).
Table 3.1
Indicator LEDs and their functions
Colour
Reference
designator
Name
Meaning when
Off
On
Blinking
Red
H1
System error
(SE)
System OK
System error
occurred,
module in
reset
Self-tests failed
Green
H2
Status
(ST)
If SE (red) led
is also off, no
power
System OK
System OK,
communication
with host CPU
Green
H3
FPGADONE
FPGA Not
initialized,
module in
reset
System OK,
FPGA
initialized
Module in “reset-
loop”
If all leds are off, there is no power provided to the module.
3.3.3 Using the Portable System Tester (PST) software
The EKE-Trainnet Portable System Tester (PST) software can be used to examine
the AIM module’s operation through the Coach Computer. For further details and
instructions refer to the PST User’s Manual.