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Laipac Technology Inc.
4
SIM CARD RECOMMENDATIONS
If you will be using the M2M 3350 primarily for data transferring such as surfing the internet or
downloading email it is best to have a large or unlimited GPRS data plan. If not, you may be
charged for data over usage at a much higher rate. If you plan on sending/receiving SMS text
messages you will also need to have an SMS plan. If you plan on using the voice and calling
features you will need a voice plan with minutes. Not all of these things are needed if you are not
using them. The most important thing is the data plan on the SIM card. It is not recommended to
use the SIM card from your mobile phone to surf the internet as most standard SIM cards do not
have much data allowed per month. You may quickly use more than your standard SIM allows.
Having a SIM card to use specifically for the M2M 3350 is highly recommended. Check with
your GSM provider for details on their data plans.
5
HARDWARE DETAILS
5.1
GSM Modem Specifications
Standard GSM 850/900MHz Class 4 (2W) and GSM 1800/1900 Class 1 (1W)
Interface Serial Interface RS232 and USB with optional Bluetooth Serial Dongle
Mobile Originated (MO) and Mobile Terminated (MT) in accordance
SMS
with GSM 07.05
Asynchronous 2400, 4800, 9600, 14400 bps
Data
2400/4800/7200/9600 bps. Class 2 Group 3 Compatible.
Fax
Class 10
GPRS
2.5mm Stereo jack for mono speaker and mic. Single ended.
Audio
• Designed for M2M and automotive applications
• R&TTE, GCF-CC, EMC, Safety and Chinese approved
5.2
GSM Antenna Specifications
Frequency Range
Polarization
© 2002-2007 by Laipac Technology Inc. All Rights Reserved.
Bands
Impedance
VSWR
Gain
Radiation
M2M 3350 User's Manual & Reference Guide
850/900/1800/1900 MHz
824~960 MHz // 1710~1990 MHz
50 Ohm
≤3.5
0 dBi
Near Omni in the Horizontal Plane
Vertical
Page 21
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