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| Parameter name | AF-GSM300-4G | AF-GSM400-4GY | |
| Working frequency band | LTE-FDD B1 B3 B5 B8 | LTE-FDD B1 B3 B5 B8 | |
| | LTE-TDD B34 B38 B39 B40 B41 | LTE-TDD B34 B38 B39 B40 B41 | |
| | CDMA B1 B5 B8 | CDMA B1 B5 B8 | |
| | GSM 900/1800M | GSM 900/1800M | |
| | LORA 137~1020MHz | | |
| Transmission rate | LTE-FDD maximum download rate is 150Mbps, maximum upload rate is 50Mbps | | |
| | LTE-TDD maximum download rate is 130Mbps, maximum upload rate is 35Mbps | | |
| | CDMA maximum download rate is 3.1Mbps, maximum upload rate is 1.8Mbps | | |
| | GSM maximum download rate is 107Kbps, maximum upload rate is 85.6Kbps | | |
| Downstream | LORA | RS485 | |
| Upstream | 4G | 4G | |
| SIM card voltage | 3V, 1.8V | | |
| Antenna interface | 50Ω/SMA | | |
| Serial port type | RS-485 | | |
| Baud rate | 115200bps | | |
| Operating voltage | DC12V | | |
| Operating current | 350 ~ 400mA @ 12V (400mA when dialing) | | |
| Operating temperature | -40℃~85℃ | | |
| Storage temperature | -40℃~90℃ | | |
| Temperature range | 0 ~95% non-condensing | | |
| Installation method | Base plate installation,35mm standard rail mounting (please specify when installing the guide rail) | | |
| Dimension | 9.6cm×6.7cm×2.4cm | | |











