RS485 GSM/GPRS modem
Based on Simcom module SIM900
With TCP/IP stack
850/900/1800/1900MHZ
STK, SMS, data, internet

GSM/GPRS modem

Product description:

General Features

Industrial design

Aluminum casing

Wireless access to internet

Based on SIMCOM module SIM900  

With TCP/IP protocol stack

850/900/1800/1900MHZ

Comply with ETSI GSM phase 2+

1.8V-3V SIM card slot

RS485 interface:

PIN 1 for 485+B

PIN 2 for 485 -A

SIM Application Toolkit

Double tone multi-frequency function (DTMF)

Send and receive data, SMS

GPRS Class 10

Antenna with high sensitivity

Always on-line
Output Power
Class 4(2W @ 850/900MHz)
Class 1(1W @ 1800/1900MHz)
Input voltage 7.5V-30V DC
Input current 1A-2A

Standby current: 56mA

Working current: 100-140mA
Working temperature -30  to +75 degrees

Storage temperature:-40 to +85 degrees

Size 85*54*25mm
Weight 110g

Accessories: AC/DC adaptor, RS485 cable, antenna, 2 mounting plates, CD

Specification for Data

GPRS Class 10 max.85.6kbps(downlink

PBCCH support

Coding schemes CS 1,2,3,4

CSD up to 14.4kbps

USSD

Non-transparent mode

Transparent mode

Specification for SMS via GSM/GPRS

Point to point MO and MT

SMS cell broadcast

Text and PDU mode

Specification for Fax

Group 3, class 1