rs232 gprs modem with very competitive price

Feature

Implementation

Power supply

Single supply voltage 5.0V – 12V,

Frequency bands

● Quad-band: GSM850, GSM900, DCS1800, PCS1900.

● The module can search these frequency bands automatically

● The frequency bands can be set by AT command.

● Compliant to GSM Phase 2/2+

Transmitting power

●Class 4 (2W) at GSM850 and GSM900

●Class 1 (1W) at DCS1800 and PCS1900

GPRS connectivity

● GPRS multi-slot class 12 (default)

● GPRS multi-slot class 1~12 (configurable)

● GPRS mobile station class B

Temperature range

● Normal operation: -35°C ~ +80°C

● Restricted operation: -45°C ~ -35°C and +80°C ~ +85°C¹⁾

● Storage temperature: -45°C ~ +90°C

DATA GPRS:

CSD:

● GPRS data downlink transfer: max. 85.6 kbps

● GPRS data uplink transfer: max. 85.6 kbps

● Coding scheme: CS-1, CS-2, CS-3 and CS-4

● Support the protocols PAP (Password Authentication Protocol) usually used for PPP connections

● Internet service protocols TCP/UDP/FTP/HTTP/MMS

● Support Packet Switched Broadcast Control Channel (PBCCH)

● CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps non-transparent

● Unstructured Supplementary Services Data (USSD) support

SMS

● MT, MO, CB, Text and PDU mode

● SMS storage: SIM card

FAX

Group 3 Class 1 and Class 2

SIM interface

Port SIM card: 1.8V, 3V,Protected against ESD with a TVS diode array.

Serial interface

● Support from 4800 bps to 115200 bps, default auto baud rate

● Support TTL/RS232/RS485

● Embed standard AT command(GSM07.05 and 07.07)

Phonebookmanagement

Support phonebook types: SM, FD, LD, RC, ON, MC

SIM Application Toolkit

Support SAT class 3, GSM 11.14 Release 99

Physical characteristics

79*53*21mm