GTM900 GTM900C GTM900-C Module GSM Module

GTM900 GTM900C GTM900-C Module GSM Module
Feature
- Working frequency bands :Dual band EGSM900/GSM1800
- Maximum transmit power
- EGSM900/GT800 Class4(2W)
- GSM1800 Class1(1W)
- Receive sensitivity:<-106dBm
- Working temperature:-30°C ～+75°C
- Powere voltage:3.3V～4.8V (recommended value 3.8V)
- Average standby current:3.8A
- Power-off leakage current:50uA
- Protocols:GSM/GPRS Phase2/2+ Huawei GT800 AT commands GSM AT commands V.25 AT commands Huawei extended AT commands
- 40PIN FPC connectors
- UART interface(maximum baud rate of the serial port:115200bit/s)
- Standard SIM card interface(1.8V or 3V)
- Two analog audio interfaces
- Power supply interfaces
- GSC RF antenna connector
- 50Έ GSC antenna connector
- Voice service
- FR, EFR, HR and AMR Voice encoding
- Calls in hands-free mode
- Echo cancellation function
- SMS MO and MT
- Point-to-point and cell broadcast
- Text messages in TEXT and PDU modes
- GPRS data service
- GPRS CLASS 10
- Encoding schemes:CS 1，CS 2，CS 3 and CS 4
- Maximum rate:85.6Kbit/s
- PBCCH
- Embedded TCP/IP protocol suite：supports multiple links，and provides ACK answer and large-capacity cache.
- Circuit data service
- CSD service(maximum rate: 14.4Kbit/s)
- Fax service：Group3 ，Class2.0
- USSD service