RS232 GSM / GPRS / GPS Modem SIM548

GSM/GPRS/GPS Modem Model G-548R General features: Industrial design Aluminum casing Wireless access to internet Based on Simcom module SIM548Z 850/900/1800/1900MHZ SIM Application Toolkit RS232 interface for GSM/GPRS RS232 interface for GPS(SiRF output) RS232 interface for GPS(NMEA output) RJ11 interface for phone 3-meter GSM antenna with glued stand 3-meter GPS antenna with magnetic stand Output Power Class 42W @ 850/900MHz Class 11W @ 1800/1900MHz Input voltage12V-36V DC Input current1A-2A Standby current: 96mA Working current: 150-250mA Working temperature -20 -+55 Storage temperature:-25 -+70 Size103*65*28mm Weight170g Accessories: AC/DC adaptor, 2 RS232 data cable, 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 fax Group 3, class 1. 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 1μs 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