SimCom SIM900D Hardware Design page 14

SIM900D Hardware Design
GPRS connectivity
Temperature range
DATA GPRS:
CSD:
SMS
FAX
SIM interface
External antenna
Audio features
Serial port and
Debug port
Phonebook management
SIM Application Toolkit
Real time clock
SIM900D_Hardware Design_V1.04
Class 1 (1W) at DCS 1800 and PCS 1900
GPRS multi-slot class 10 （default）
GPRS multi-slot class 8 (option)
GPRS mobile station class B
Normal operation: -30°C to +80°C
Restricted operation: -40°C to -30°C and +80 °C to +85°C
Storage temperature -45°C to +90°C
GPRS data downlink transfer: max. 85.6 kbps
GPRS data uplink transfer: max. 42.8 kbps
Coding scheme: CS-1, CS-2, CS-3 and CS-4
Supports the protocols PAP (Password Authentication Protocol) usually used
for PPP connections.
Integrates the TCP/IP protocol.
Support Packet Switched Broadcast Control Channel (PBCCH)
CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps, non-transparent
Unstructured Supplementary Services Data (USSD) support
MT, MO, CB, Text and PDU mode
SMS storage: SIM card
Group 3 Class 1
Support SIM card: 1.8V, 3V
Antenna pad
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 Cancellation
Noise Suppression
Serial Port:
7-wire modem interface with status and control lines, unbalanced,
asynchronous.
1.2kbps to 115.2kbps.
Serial Port can be used for AT commands or data stream.
Supports RTS/CTS hardware handshake and software ON/OFF flow control.
Multiplex ability according to GSM 07.10 Multiplexer Protocol.
Autobauding supports baud rate from 1200 bps to 57600bps.
Debug port:
2-wire null modem interface DBG_TXD and DBG_RXD.
Can be used for debugging and upgrading firmware.
Support phonebook types: SM, FD, LD, RC, ON, MC.
Support SAT class 3, GSM 11.14 Release 99
Implemented
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2010.10.09