Rainbow Electronics M20 - Manual (Page 2)

General features
M20
Quad Band GSM/GPRS Module
35mm
32.5mm 3.1mm
Power supply
External SIM 3V/1.8V
Analog audio interfaces Two channels
PCM Interface ( optional)
Serial port and debug port
Antenna connector and
solder pad
Charge interface
Hirose 50-pin B2B connector
Interfaces
Contact us
Address
Room 801, Building E, No.1618,
Yishan Road, Shanghai, China
Email [email protected]
Tel + 86 21 51082965
GPRS class 12 max. 85.6 kbps (uplink
& downlink)
PBCCH support
Coding schemes
CS 1, 2, 3, 4
CSD
up to 14.4 kbps
USSD
Non transparent mode
Protocols
PPP
TCP/UDP
HTTP
FTP
MMS
Specifications for fax
Group 3, class 1 & class 2
Specifications for data
Specifications for SMS via GSM /
GPRS
Point-to-point MO and MT
SMS cell broadcast
Text and PDU mode
Drivers
MUX Driver
Compatibility
AT cellular command interface
Quad-Band 850/900/1800/1900MHz
GPRS multi-slot class 12/10/8
GPRS mobile station Class B
Compliant to GSM phase
2/2+
Class 4
( 2W @850/ 900 MHz)
Class 1
( 1W @1800/1900MHz)
Supply voltage range 3.4~4.5 V 4.0V nominal
Low power consumption 1.1mA @ DRX=5
0.7mA @ DRX=9
Operation temperature -45 °C to +85 °C
Dimensions
35mm × 32.5mm × 2.95mm
( incl. B2B connector:3.1mm)
Weight
Approx 6g
Control via AT commands (GSM 07.07, 07.05
and other enhanced AT Commands)
SIM application toolkit
Specifications for voice
Speech codec modes
Half Rate (HR)
Full Rate (FR)
Enhanced Full Rate (EFR)
AMR Half Rate
AMR Full Rate
Echo arithmetic
Echo Cancellation
Echo Suppression
Noise Reduction
Hands-free operation