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| Chapter 1 – Product Description and Specifications | |||||||||||
Electrical Characteristics |
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| Electrical Characteristics |
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| Switching the GSM modem on/off | The device is permanently powered (when connected to the power |
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| supply). |
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| Voltage Range | Voltage range : 5 to 32V DC |
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| GND : 0V |
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| Over voltage and Under voltage | Correct operation of the Wireless MultiModem in communication mode is |
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| not guaranteed if input voltage falls below 5V. |
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| Input/output electrical characteristics for external connections |
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| Parameters |
| GSM/GPRS 850/900 |
| GSM/GPRS 1800/1900 |
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| Typ. |
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| Typ. |
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| 32 |
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| Input Supply Voltage |
| 5 |
| 13.2 |
| 5 | 13.2 | 32 |
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| V |
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| Input peak supply current in comm. mode at Pmax | 1 |
| .4 | .2 |
| 1 | .4 | .2 |
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| A |
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| Input average supply current in comm. mode at | 360 |
| 150 | 75 |
| 300 | 125 | 70 |
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| mA |
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| Pmax |
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| 10 |
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| Input average supply current in idle mode | 30 |
| 10 |
| 30 | 10 | 10 |
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| mA |
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Antenna/RF Specifications
| GSM 850 | EGSM 900 |
Frequency RX | 869 to 894 MHz | 925 to 960 MHz |
Frequency TX | 824 to 849 MHz | 880 to 915 MHz |
RF Power Stand | 2W at 12.5% duty cycle | 2W at 12.5% duty cycle |
Impedance | 50 ohms |
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VSWR | <2 |
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Typical Radiated Gain | 0 dBi on azimuth plane |
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| GSM 1800 | GSM 1900 |
Frequency RX | 1805 to 1880 MHz | 1930 to 1990 MHz |
Frequency TX | 1710 to 1785 MHz | 1850 to 1910 MHz |
RF Power Stand | 1W at 12.5% duty cycle | 1W at 12.5% duty cycle |
Impedance | 50 ohms |
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VSWR | <2 |
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Typical Radiated Gain | 0 dBi on azimuth plane |
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