Chapter 2 Hardware
NR/FWA Indoor Series User’s Guide
29
2.3 SIM Card Slot
The following figures show the Micro-SIM card slot on the Zyxel Device. Insert your SIM card provided by
your Internet Service Provider (ISP). Refer to the QSG for more information on hardware installations.
Internet Blue On The Zyxel Device is connected to the Internet using 5G.
Green On The Zyxel Device is connected to the Internet using 4G, or is
connected in Ethernet WAN mode.
Red On Internet connection is unavailable.
WiFi/WPS Green On WiFi is enabled.
Blinking WPS is activated, and the Zyxel Device is establishing a WPS
connection.
Off WiFi is disabled.
Table 6 NR5103E LED Behavior
LED COLOR STATUS DESCRIPTION
Power Green On The Zyxel Device is receiving power and ready for use.
Blinking The Zyxel Device is booting.
Off The Zyxel Device is not receiving power.
Red On Zyxel Device error, need to take action.
SMS Green On There is a new SMS message.
Blinking The Inbox is full.
Off There is no unread SMS message.
Cellular Signal
Strength
Blue On The signal strength is good.
Blinking No SIM card or invalid SIM card.
Green On The signal strength is medium.
Red On The signal strength is poor.
Blinking There is no cellular signal, or signal strength is below the poor
level.
Internet Blue On The Zyxel Device is connected to the Internet using 5G.
Green On The Zyxel Device is connected to the Internet using 4G, or is
connected in Ethernet WAN mode.
Red On Internet connection is unavailable.
WiFi/WPS Green On WiFi is enabled.
Blinking WPS is activated, and the Zyxel Device is establishing a WPS
connection.
Off WiFi is disabled.
Table 5 NR5103/FWA510 LED Behavior (continued)
LED COLOR STATUS DESCRIPTION
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