- 4 -
Name
Color Function
WLAN
Green
Steady on: Wireless enabled
Blinking: The NPort can’t establish a WLAN
connection with AP (Infrastructure) or
station (Ad-Hoc)
Off
Wireless not enabled
Serial 1
Serial 2
Orange The serial port is receiving data
Green The serial port is transmitting data
Off
No data is flowing to or from the serial port
Signal
Strength
Red
1 Red -
The signal strength (RSSI) is lower
than -88 dBm
2 Red -
The signal strength (RSSI) is between
- 87 to -79 dBm
Green
3 Green - The signal strength (RSSI) is between
-78 to -68 dBm
4 Green - The signal strength (RSSI) is between
-67 to -60 dBm
5 Green - the signal strength (RSSI) is between
-59 to -45 dBm
Pull-High/Low Resistors and Terminal Resistor
for RS-422/485
You may need to set the pull-
high/low resistors when
termination resistors are used in
certain RS-422 or RS-485
environments.
S2(Serial 1)
S3(Serial 2)
DIP 1
DIP 2
DIP 3
DIP 4
Pull-high
Resistor
Pull-low
Resistor
Terminal
Resistor
Reserved
ON
1 kΩ
1 kΩ
120 Ω
–
OFF (Default)
150 kΩ
150 kΩ
N/A
–
S3 is for the NPort W2250A only.
