Cheap GSM Modules With CE Certificate Support PCM

EM56 is an ultra compact reliable wireless module. It is a complete quad-band GSM/GPRS(also support EDGE downlink) module in a SMT type which is designed specially for Chinese mainland market and overseas market. It allows you to benefit from small dimensions and cost-effective solutions.

Featuring an industry-standard interface, the EM56 delivers GSM/GPRS 850/900/1800/1900MHZ performance for voice, SMS, Data and Fax in a small form factor and with low power consumption. With a tiny configuration of 30.2mm X 21mm X 2.4mm, EM56 can fit almost all the space requirements in your applications, especially for slim and compact demand of design.

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General Features

*Quad-Band 850/900/1800/1900MHZ

*GPRS multi-slot class 12

*GPRS mobile station class B

*Support EDGE downlink data transmission

*Compliant to GSM phase 2/2+

-Class 4 (2W @850MHZ)

-Class 4 (2W @900MHZ)

-Class 1 (1W @1800MHZ)

-Class 1 (1W @1900MHZ)

*SAIC (Single Antenna Interference Cancellation) support

*Dimensions: 30.2mm X 21mm X 2.4mm

*Weight: about 7g

*Control via AT commands (GSM 07.07, 07.05 and OVIPHONE enhanced AT Commands)

*SIM application toolkit

*Supply voltage range: 3.4…4.2V

*Low power consumption: 0.8mA (sleep mode & BS-PA-MFRMS=9)

*Operation temperature: -30°C to +70°C

*Peak current: Maximum 2A

*Operation current: Average 220mA

*Average current (Idle): 5mA

Customized Features

*FOTA

*MMS

*Embedded AT

Specifications for GPRS/EDGE Data

*GPRS class 12: Max. 85.6 kbps (Downlink), max 42.8 kbps (uplink)

*EDGE: Max 384 kbps (downlink)

*PBCCH support

*GPRS Coding schemes CS 1, 2, 3, 4

*EDGE Coding schemes MCS1~9

*PPP-stack

Specifications for CSD Data

*CSD up to 14.4 kbps

*USSD

*Non transparent mode

Specifications for SMS via GSM/GPRS

*Point to point MO and MT

*SMS cell broadcast

*Text and PDU mode

Specifications for Voice

*Tri-codec

-Half rate (HR)

-Full rate (FR)

-Enhanced Full rate (EFR)

*AMR

-Half Rate (HR)

-Full rate (FR)

*Hands-free operation

(Echo suppression)

Interfaces

*Interface to external SIM 3V/1.8V

*Analog audio interface

*Two Serial interfaces

*Antenna pad

*GPI0

*Two INT interface

*PCM

Compatibility

*AT cellular command interface

Certifications

*CE