SIM Tech SIMCom SIM900-DS Hardware Design page 9

Transmitting power
GPRS connectivity
Temperature range
Data GPRS
CSD
USSD
SMS
FAX
SIM interface
External antenna
Audio features
Serial port and
debug port
Phonebook management
SIM application toolkit
Real time clock
Physical characteristics
Firmware upgrade
*
SIM900-DS does work at this temperature, but some radio frequency characteristics may deviate from the GSM specification.
SIM900-DS_Hardware Design_V1.00
Class 4 (2W) at GSM 850 and EGSM 900
Class 1 (1W) at DCS 1800 and PCS 1900
GPRS multi-slot class 10（default）
GPRS multi-slot class 8 (option)
Normal operation: -30°C ~ +80°C
Restricted operation: -40°C ~ -30°C and +80 °C ~ +85°C
Storage temperature -45°C ~ +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
Integrate the TCP/IP protocol.
Support Packet Broadcast Control Channel (PBCCH)
Support CSD transmission
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:
Full modem interface with status and control lines, unbalanced,
asynchronous.
600bps to 460800bps.
Can be used for AT commands or data stream.
Support RTS/CTS hardware handshake and software ON/OFF flow control.
Multiplex ability according to GSM 07.10 Multiplexer Protocol.
Autobauding supports baud rate from 600bps to 115200bps.
Debug port:
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.
GSM 11.14 Release 99
Support RTC
Size: 24*24*3mm
Weight: 3.4g
Firmware upgradeable by debug port.
Smart Machine Smart Decision
9
*
2013-01-20