
QD1 IO Expansion Module User Manual
16 Document Version V3.0 (2020-08-18)
Table 2-3 Description of modular QD1 LEDs
LED
Color
Function
Status description
Work LED
(LED1)
Green
Work LED
"
NO" indicates the module works
normally.
Communication
LED
(LAN1/LAN2)
Green
Communication
LED
"NO"
indicates
that
a
communication
connection
has
been established.
"Flashing" indicates communication
is being performed (100 Mbit/s).
Yellow
"NO"
indicates
that
a
communication
connection
has
been established.
"Flashing" indicates communication
is being performed (100 Mbit/s).
2.5.2 Economical QD1
Figure 2-11 LEDs on QD1 motherboard
LED
Green LED
Yellow LED