启明云端 GPRS 模块SIM900A优势价格

SIM900A Description;

It is a complete dual-band GSM/GPRS module in a SMT type which is designed specially for Chinese mainland market, allowing you to benefit from small dimensions and cost-effective solutions

General specifications:

Dual-band: 900/1,800MHz

GPRS multi-slot class 10/8

GPRS mobile station class B

Compliant to GSM phase 2/2+

Class 4 (2W at 900MHz)

Class 1 (1W at 1,800MHz)

SAIC (single antenna)

Interference cancellation) support

Dimensions: 24* 24 * 3mm

Weight: 3.4g

Control via AT commands (GSM 07.07, 07.05 and SIMCOM enhanced AT commands)

SIM application toolkit

Supply voltage range: 3.2-4.8V

Low-power consumption: 1.0mA (sleep mode and BS-PA-MFRMS=9)

Operating temperature: -40 to +85°C

Specifications for fax:

Group 3, class 1

Specifications for GPRS data:

GPRS class 10: 85.6kbps (maximum) (downlink)

PBCCH supported

Coding schemes CS 1, 2, 3, 4

PPP-stack

Specifications for CSD data:

CSD up to 14.4kbps

USSD

Non-transparent mode

Specifications for SMS via GSM/GPRS:

Point to point MO and MT

SMS cell broadcast

Text and PDU mode

Software features

0710 MUX protocol

Embedded TCP/UDP protocol

FTP/HTTP

Customized features:

FOTA

MMS

Embedded AT specifications for voice:

Tricodec–half rate (HR)–full rate (FR)–enhanced full rate (EFR)

AMR–half rate (HR)–full rate (FR)

Handsfree operating（Echo suppression）

Interfaces

Interface to external SIM 3/1.8V

Analog audio interface

RTC backup

SPI interface

Two-serial interfaces

Antenna pad

I2C

GPIO

PWM

ADC

Compatibility: AT cellular command interface

Certifications: RoHS, TA, REACH