Acer Altos S300, User Manual

Page: 30 / 78

3 Cabling and configuration 20
I/O module LEDs
There are LEDs mounted on the ESM, CSM and TSM. This section will
explain what these LEDs mean.
ESM/CSM LEDs
TSM LED
Bus A
Bus B
Bus A Bus B
ES Activity
ES Activity
There are 5 LEDs in total on the ESM/CSM
located as shown. The ES Activity LED shows,
if the ES block of the ESM/CSM is active or in
standby mode. If the LED is ON, the ES block
is active, and if it is OFF, the ES block is in
standby mode. The Bus A and Bus B LEDs
show which bus each connector is associated
with, e.g. in single (joined) bus mode both
Bus A LEDs would be on, and in dual (split)
bus mode Bus A would be on for one
connector and Bus B would be on for the
other connector.
The ES Activity LED shows if the ES Block of
the TSM is active or in standby mode. If the
LED is on the ES block of the TSM is active
and if it is off the ES block is in standby
mode.