GSM/GPRS/GPS Modem (G-548R)

Product Description

General features:
Industrial design
Aluminum casing
Wireless access to internet
Based on Simcom module SIM548Z
SIM Application Toolkit
RS232 interface for GSM/GPRS
RS232 interface for GPS(SiRF output)
RS232 interface for GPS(NMEA output)
RJ11 interface for voice(handset)

LED for GSM signal
3-meter GSM antenna with magnetic stand
3-meter GPS antenna with magnetic patch
Output Power:
Class 4(2W @ 850/900MHz)
Class 1(1W @ 1800/1900MHz)
Input voltage: 12V-36V DC
Input current: 1A-2A
Standby current: 96mA
Working current: 150-250mA
Working temperature: -20 -+55 degrees
Storage temperature: -25 -+70 degrees
Size: 103*65*28mm
Weight: 170g
Accessories: AC/DC adaptor, RS232 data cable, 2 USB+RS232 data cables, GSM antenna, GPS antenna, CD

GSM/GPRS specifications:
850/900/1800/1900MHz
GPRS class 10
GPRS mobile station class B
Compliant to GSM phase 2/2+
Control via AT commands (GSM 07.07 and 07.05 and SIMCOM enhanced AT commands)

Specification for SMS via GSM and GPRS:
Point to point MO and MT
SMS cell broadcast
Text and PDU mode

Specifications for audio
Tricodec: HR, FR, EFR
Hands-free operation
Echo suppression

Specifications for data transfer
GPRS class 10
Max. 85.6kbps(downlink)
PBCCH support
Coding schemes CS1, 2, 3, 4
CSD up to 14.4kbps
USSD
Non transparent mode
PPP stack
Integrated TCP/IP stack

Specifications for GPS:
Receiver 20 channels, L1 1575.42 MHz, C/A code 1, 023MHz chip rate
Accuracy Position 10 m CEP,
Without SA/Velocity 0.1m/s,
Without SA/Time 1¦Ìs synchronized to GPS time
DGPS accuracy 1 to 5m, typical, 0.05m/s, typical
Date WGS-84
Acquisition rate
(TTFF defined at 95% of first position local station)

Hot start < 1s, average, open sky
Warm start < 38s, average, open sky
Cold start < 42s, average, open sky
Operating voltage 3.3V DC ± 5%
Low power consumption about 200mW at 3.3V
Protocols
NMEA-0183
SiRF binary
RTCM SC-104
Crystal oscillator (TCXO), temperature compensated with frequency stability of ± 0.5ppm
Memory: On-chip 4MB FLASH and 1 MB SRAM