GSM modems are specialized types of modems that operate over subscription-based wireless networks, similar to a mobile phone.


  • Frequency bands (Optional) – GSM 850/900/1800/1900MHz
  • Power output – EGSM850/900 (+33dBm ±2dB), GSM1800/1900 (+30dBm ±2dB)
  • GPRS – Multi-slot  Class 10
  • CSD – 2.4, 4.8, 9.6, 14.4kbps
  • TCP/IP stack access by AT commands
  • MC class B, CSD up to 14.4kbps
  • RS485 communication
  • Operating temperature range  -20 ~ +60℃
  • Input Volt : DC5~12Volt



Item Specification
GSM class Small MS
Frequency bands Dual band BGS2-E : GSM 900/1800MHz
Quad band BGS2-W: GSM 850/900/1800/1900MHz
Output power Class 4 +33dBm ±2dB for EGSM850
Class 4 +33dBm ±2dB for EGSM900
Class 1 +30dBm ±2dB for GSM1800
Class 1 +30dBm ±2dB for GSM1900
@ANT. 50 Ohm matching
Data transfer GPRS Multislot Class 10, Full PBCCH support
CSD V.110, RLP, non-transparent
PPP-stack for GPRS data transfer
AT commands AT commands for RIL compatibility Hayes 3GPP TS 27.007, TS 27.005
SIM Application Toolkit SAT Release 99
GPIO GPIO interface  6 GPIO lines
GPIO types I2C interface, LED signaling and PWM functionality