Siemens SCALANCE W1780 Configuration Manual page 244

Configuring with Web Based Management
6.6 "Interfaces" menu
The second graphic contains the following elements:
● Bar (left)
In the bar on the left-hand side the transfer attempts and the data rate of the client / access
point are displayed according to the color scheme.
● Color scheme
The range > -35 dBm (blue) is the overmodulation range, in other words the WLAN signal
is too strong and is received overmodulated. As of approximately -60 dBm (yellow) the
WLAN signal is weaker. The individual colors are described again under the graphic.
● x axis
The x axis shows the course of the measurement in random samples and seconds.
● Measurement data
– Client
– Access point
Beside the graphics the following values are displayed:
● Status
Shows whether or not the signal recorder is recording values.
● Current Sample
The number of the current measurement
● CL RX-Signal [dBm] / AP RX-Signal [dBm]
The effective user signal of the client / access point in dBm
● CL NF [dBm] / AP NF [dBm]
The background noise of the client / access point in dBm
● CL Retries [%] / AP Retries [%]
The transfer repetitions of the client / access point as a percentage.
● CL RSSI / AP RSSI
The raw value of the RSSI (Received Signal Strength Indication) of the client / access point
● CL TX-Rate [Mbps] / AP TX-Rate [Mbps]
The average data rate of the sent data packets during the current random test
● CL M-Signal [dBm]
If the client has an iPCF-MC connection, the user signal of the management channel is
displayed.
● Roaming Counter
The roaming counter shows how often the client has changed access points during the
recording. After 4,294,967,295 changes, the counter is reset.
244
The measurement data shows the transfer attempts according to the color scheme
shown. The transfer attempts are shown as a bar. The data rate of the sent data packets
is represented as a line. If the client changes access points during a measurement
(roaming) or reconnects, this is displayed by a vertical black line.
The measurement data shows the transfer attempts according to the color scheme
shown. The transfer attempts are shown as a bar. The data rate of the sent data packets
is represented as a line.
If the client changes access points during a measurement (roaming) or reconnects, this
is displayed by a vertical black line. If the access point does not support the setting
"Bidirectional Recording" no data is displayed.
SCALANCE W1780/W1740 according to IEEE 802.11ac Web Based Management
Configuration Manual, 11/2019, C79000-G8976-C485-03