SimCom SIM808 Hardware Design page 11

Transmitting power
GPRS connectivity
Temperature range
Data GPRS
CSD
USSD
SMS
SIM interface
External antenna
Audio features
Serial port and
USB interface
Phonebook management
SIM application toolkit
Real time clock
Alarm function
Physical characteristics
SIM808_Hardware Design_V1.00
can search the 4 frequency bands automatically. The frequency bands also
can be set by AT command "AT+CBAND". For details, please refer to
document [1].
Compliant to GSM Phase 2/2+
Class 4 (2W) at GSM 850 and EGSM 900
Class 1 (1W) at DCS 1800 and PCS 1900
GPRS multi-slot class 12（default）
GPRS multi-slot class 1~12 (optional)
Normal operation: -40℃ ~ +85℃
Storage temperature -45℃~ +90℃
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
PAP protocol for PPP connect
Integrate the TCP/IP protocol.
Support Packet Broadcast Control Channel (PBCCH)
CSD transmission rates：2.4，4.8，9.6，14.4 kbps
Support CSD transmission
Unstructured Supplementary Services Data (USSD) support
MT, MO, CB, Text and PDU mode
SMS storage: SIM card
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.
1200bps to 115200bps.
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 1200 bps to 115200bps.
USB interface:
Can be used as debugging and firmware upgrading.
Support phonebook types: SM, FD, LD, RC, ON, MC.
GSM 11.14 Release 99
Support RTC
Can be set by AT command
Size: 24*24*2.6mm
Weight: 3.5g
11
Smart Machine Smart Decision
2014.03.27