1 Modem Introduction 
1.1 Introduction 
Thank you for using ZTE USB Modem. 
To guarantee the modem always in its best condition, please 
read this manual carefully and keep it for further use. 
The pictures, symbols and contents in this manual are just for 
your reference. They might not be completely identical with your 
modem. We operate a policy of continuous development. We 
reserve  the right to update the technical specifications in this 
document at any time without prior notice. 
The  ZTE  USB Modem  is a type of multi-mode, 3G  modem, 
suitable  for GSM/GPRS/WCDMA/EDGE/HSDPA network. It 
adopts USB interface which provides an easy interface to laptop 
and desktop PC. With the GSM/ GPRS/ EDGE/ UMTS/ HSDPA 
mobile network, it can help you carry out SMS, data service and 
will help you break away from the limit of time and zone, and 
realize wireless communication at any moment everywhere. 
1.2 Warning and Notice 
To the owner 
 Some electronic devices are susceptible to electromagnetic 
interference sent by modem if inadequately shielded, such as 
electronic system of vehicles. Please consult the 
manufacturer  of the device before using the modem if 
necessary. 
 Operating of laptop and desktop PC and modem may 
interfere  with medical devices like hearing aids and 
pacemakers. Please  always keep them more than 20 
centimeters away from such medical devices when they are 
turned on. Turn the modem off if  necessary. Consult a 
physician or the manufacturer of the medical device before 
using the modem. 
 Be aware of the usage limitation when using a modem at