User's Manual

GSM/GPRS/GNSS Module Series
MC20 Hardware Design
MC20_Hardware_Design Confidential / Released 14 / 95
Power Supply
Single supply voltage: 3.3V ~ 4.6V
Typical supply voltage: 4V
Power Saving
Typical power consumption in SLEEP mode (GNSS is powered off):
1.2mA@DRX=5
0.8mA@DRX=9
Frequency Bands
 Quad-band: GSM850, EGSM900, DCS1800, PCS1900.
 The module can search these frequency bands automatically
 The frequency bands can be set by AT commands
 Compliant to GSM Phase 2/2+
GSM Class Small MS
Transmitting Power
 Class 4 (2W) at GSM850 and EGSM900
 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
DATA GPRS
 GPRS data downlink transfer: max. 85.6kbps
 GPRS data uplink transfer: max. 85.6kbps
 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, PPP, HTTP, NTP, PING
 Support Packet Broadcast Control Channel (PBCCH)
 Support Unstructured Supplementary Service Data (USSD)
Temperature Range
 Operation temperature range: -35°C ~ +75°C
1)
 Extended temperature range: -40°C ~ +85°C
2)
SMS
 Text and PDU mode
 SMS storage: SIM card
SIM Interface
 Support SIM card: 1.8V, 3.0V
 Support Dual SIM Single Standby
Audio Features
Speech codec modes:
 Half Rate (ETS 06.20)
 Full Rate (ETS 06.10)
 Enhanced Full Rate (ETS 06.50/06.60/06.80)
 Adaptive Multi-Rate (AMR)
 Echo Suppression
 Noise Reduction
 Embedded one amplifier of class AB with maximum driving power up
to 800mW
UART Interfaces
UART Port:
 Seven lines on UART port interface
 Used for AT command and GPRS data
 Used for PMTK command and NMEA output in all-in-one solution