Description of the device
4.5 LED display
SCALANCE W788-x / W748-1
30
Operating Instructions, 03/2022, A5E03678333-17
LED
Color
Meaning
Flashing green
and yellow
Data transfer over the Ethernet interface P1.
R1
Off
The WLAN interface 1 is deactivated.
Green
Access point mode:
The WLAN interface 1 is initialized and ready for operation.
Client mode:
There is a connection over the WLAN interface 1.
Flashing green
and yellow
Data transfer via the WLAN interface 1.
Flashing yellow
Client mode:
The client is searching for a connection to an access point.
Flashing yellow
Interval:
100 ms on /
100 ms off
Access point mode:
With DFS (802.11h), the channel is scanned for one minute for
competing radar signals before the channel can be used for data
traffic.
Client mode:
The client waits for the MAC address due to the setting "Automatic"
for the "MAC mode" parameter and is not connected to an access
point.
Flashing yellow
and green
Interval:
3x (100 ms on /
100 ms off)
1x 1000 ms on
Client mode:
The client waits for the MAC address due to the setting "Automatic"
for the "MAC mode" parameter and is connected to an access point.
R2
Off
The WLAN interface 2 is deactivated.
Client mode:
The LED is always off because WLAN interface 2 is not available in
client mode.
Green
Access point mode:
The WLAN interface 2 is initialized and ready for operation.
Flashing green
and yellow
Access point mode:
Data transfer via the WLAN interface 2.
