Key Specifications/Special Features:
Project Customization is acceptable!
Power supply： 5V ～ 16V
Power saving： Typical power consumption in sleep mode is 70mW( BS-PA-MFRMS=9)
G20 Quad-band: GSM 850, EGSM 900, DCS 1800, PCS 1900. G20 can search the 4 frequency bands automatically. The frequency bands also can be set by AT command “AT+CBAND”：
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 10 (default)
GPRS multi-slot class 8 (option)
Normal operation: -30℃～+80℃
Restricted operation: -40℃～-30℃ and +80℃～+85℃﹡
Storage temperature: -45℃～+90℃
GPRS data downlink transfer: max.85.6kbps
GPRS data uplink transfer: max.42.8kbps
Coding scheme: CS-1, CS-2, CS-3 and CS-4
Integrate the TCP/IP protocol
Support Packet Broadcast Control Channel (PBCCH)
CSD: Support CSD transmission
USSD: Unstructured Supplementary Services Data (USSD) support
MT, MO, CB, Text and PDU mode
SMS storage: SIM card
FA: Group 3 Class 1
SIM interface: Support SIM card: 1.8V, 3V
External antenna: SMA type RF connector
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)
RS232 serial port
Full modem interface with status and control lines, unbalanced asynchronous.
1200bps to 115200bps.
Can be used for AT commands data stream.
Support RTS/CTS hardware handshake and software flow control.
Multiplex ability according to GSM 07.10 Multiplexer Protocol.
Autobauding supports baud rate from 1200 bps to 57600 bps.
GSM 11.14 Release 99