Novatel Wireless NRM-U630 Manual Do Utilizador

 

GU-90023  
Revision 1 

 

 

 
 

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Determine the current state of your UMTS Merlin, by interpreting the cadence (flashing sequence) and  
colour of the Light Emitting Diode  

 
 

The Light Emitting Diode (LED) is a device that lights up when power is applied to it.  Interpreting the LED’s 
flashing sequence and color, will provide you with the current state of your UMTS Merlin.  See Table 1 below. 

 

 (1/4sec) 250ms ON  
(1/4sec) 250ms OFF 

RED 

Merlin trying to read SIM 

The modem is unable to 
read the SIM. 
An error has occurred in the 
modem firmware. 

See 
Section 5, 
Problem 5  

ON (Not flashing) 
 

RED 

Merlin Searching for wireless service 

The Merlin is not receiving a 
signal from the wireless 
network 

See 
Section 5, 
Problem 6 

(1/4sec) 250ms ON 
(1 3/4sec) 1750ms 
OFF 

BLUE 

Your Merlin is currently receiving a 
UMTS circuit switched (CS) signal 
from the network and has registered 
on the circuit switched (CS) domain 

 

 

 (1/4sec) 250ms ON 
 (1/4sec) 250ms OFF 
 (1/4sec) 250ms ON 
(1 3/4sec) 1750ms 
OFF 

BLUE 

Your Merlin is currently receiving a 
UMTS packet switched (PS) signal 
from the network and has registered 
on the packet switched (PS) domain 
(also CS i.e PS or PS+CS ) 

 

 

ON (Not flashing) 

BLUE 

Your Merlin is currently PDP context 
activated on the UMTS system. 

 

 

(1/4sec) 250ms ON 
(1 3/4sec) 1750ms 
OFF 

GREEN 

Your Merlin is currently receiving a 
GSM circuit switched (CS) signal from 
the network and has registered on 
the GSM circuit switched (CS) domain 

 

 

 (1/4sec) 250ms ON 
 (1/4sec) 250ms OFF 
 (1/4sec) 250ms ON 
(1 3/4sec) 1750ms 
OFF 

GREEN 

Your Merlin is currently receiving a 
GSM/GPRS packet switched (PS) 
signal from the network and has 
registered on the GSM/GPRS packet 
switched (PS) domain. (also CS i.e PS 
or CS)  

 

 

ON (Not flashing) 

GREEN 

Your Merlin is currently PDP (Packet 
Data Protocol) context activated on 
the GSM/GPRS system