User's Manual

M50 Hardware Design
M50_HD_V2.0 - 16 -
Temperature range  Normal operation: -35°C ~ +80°C
 Restricted operation: -40°C ~ -35°C and +80°C ~ +85°C
1)
 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/PPP/HTTP/NTP/PING
 Support Packet Broadcast Control Channel (PBCCH)
 CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps non-transparent
 Support Unstructured Supplementary Service Data (USSD)
SMS  Text and PDU mode
 SMS storage: SIM card
SIM interface Support SIM card: 1.8V, 3V
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
 Echo Cancellation
 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, GPRS data and CSD data
 Multiplexing function
 Support autobauding from 4800 bps to 115200 bps
Debug Port:
 Two lines on debug port interface DBG_TXD and DBG_RXD
 Debug Port only used for firmware debugging
Auxiliary Port:
 Used for AT command
Phonebook management Support phonebook types: SM, ME, ON, MC, RC, DC, LD, LA
SIM Application Toolkit Support SAT class 3, GSM 11.14 Release 99
Real time clock Supported
Physical characteristics Size:
24.5 (±0.15) × 25.3 (±0.15) × 2.6 (±0.2) mm
Weight: 3.3g
Firmware upgrade Firmware upgrade via UART Port
Quecctel
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