What Is a 3G Modem?
3G MODEM is a short message platform based on WCDMA / EVDO network, with embedded industrial-grade 3G wireless module.
3G MODEM
- Foreign name
- 3G MODEM
- External power
- DC 9V 500mA
- Wide voltage power supply
- DC 5-35V
- Communication current
- 250mA
- 3G MODEM is a short message platform based on WCDMA / EVDO network, with embedded industrial-grade 3G wireless module.
- [1]
3G MODEM wireless parameters
- 1.Support UMTS / WCDMA / HSDPA / HSUPA 850/900/1900 / 2100MHz
- 2.Dual-band EGSM 850/900/1800 / 1900MHz
- 3.Support GPRS / EDGE CLASS 12
- Data rate
- HSDPA / HSUPA mode:
- Downlink up to 7.2Mbps
- Uplink up to 5.76Mbps
- WCDMA mode:
- Downlink / Uplink up to 384Kbps
- EDGE mode:
- Downlink up to 236.8Mbps
- Uplink up to 118Kbps
- GPRS mode:
- Downlink up to 85.6Mbps
- Uplink up to 42.8Kbps
- CSD mode:
- Downlink / Uplink up to 14.4Kbps
- 5.Support DTMF
- 6.Support SMS / Internet function
- 7.Standard AT command set
3G MODEM technical indicators
- 1. Interface:
- Standard RS232 serial port, serial port speed is 110 ~ 230400BPS
- Indicator: with power and online indicator.
- Antenna interface: standard SMA female antenna interface, characteristic impedance 50 ohms.
- SIM card interface: 3V / 1.8V standard push-type user card interface.
- Power interface: standard 3-pin locomotive power socket.
- Voice interface: standard headset microphone interface (reserved).
- Caimao 3G MODEMRS-232 interface diagram [2]
- 2. Power supply:
- Standby current: 20mA
- 3.Industrial wireless module
- 4. Size
- Product dimensions: 81 * 55 * 20 mm (excluding antenna and fixing parts)
- Product package size: 298 * 226 * 60mm
- 5.Weight
- 0.41kg
- 6.Other parameters:
- Working environment temperature -25 ~ + 65
- Extended working temperature -30 ~ + 75
- 95% relative humidity (non-condensing)
3G MODEM Features
- 1. Support Chinese, English, digital SMS sending and receiving, support wireless Internet access
- 2. Provide VB / VC / C # / DEPHI dynamic link library DLL and test program to facilitate user development and integration
- 3. System industrial design, strong anti-interference ability, stable system, suitable for use in industrial control field
- 4.Excellent low and high temperature performance
- 5.Easy to use, flexible and reliable
- Support WINDOW / LINUX operating system