User's Manual
NPort W2150A/W2250A Series  Getting Started 
2-3 
LED Indicators 
Top Panel LED Indicators 
Name  Color  Function 
Ready 
Red 
Steady on:  Power is on, and the NPort is booting up. 
Blinking:  An IP conflict exists, or the DHCP/ BOOTP server did not 
respond properly. 
Green 
Steady on:  The NPort is functioning normally. 
Blinking:  The unit is responding to Locate function. 
Off  Power is off, or a power error condition exists. 
WLAN 
Green 
Steady on:  Wireless enabled 
Blinking:  The NPort can’t establish WLAN connection with AP 
(Infrastructure) or station (Ad-Hoc) 
Off Wireless not enabled. 
Serial 1 
Serial 2 
Orange  Serial port is receiving data. 
Green  Serial port is transmitting data. 
Off  No data is flowing to or from the serial port. 
Signal Strength 
(5 LEDS) 
Red 
1 Red - the signal strength (RSSI) is worse 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 
End Panel LED Indicators 
Name  Color  Function 
Ethernet 
Orange 
10 Mbps Ethernet connection 
Green 
100 Mbps Ethernet connection 
Off Ethernet cable is disconnected 










