LRA-900
介紹
The LRA-900 is a RS-232/485 to radio device designed for remote communication operating in a transparent way and exploiting the physical layer of LoRa (Long Range) transmission technology. The LRA-900 provides a maximum line of sight (LOS) transmission distance of 1500 meters at an RF bit rate less than 10 kbps. In order to overcome the interference that may be encountered in harsh environments, the LRA-900 allows the RF transmission bit rate to be configured to a minimum of 250 bps, enhancing the capability of the modem to resist noise and other interference. Additionally, the RF channels and Group IDs are adjustable, which is helpful to avoid interference encountered when two LRA-900 networks are adjacent. The RF channels and the Group IDs can be configured in order to distinguish and control the different LRA-900 networks.
應用
相似產品
EMS 防護 | |
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EFT (IEC 61000-4-4) | +/- 1 kV |
ESD (IEC 61000-4-2) | +/- 4 kV Contact |
Surge (IEC 61000-4-5) | +/- 1 kV |
LED 燈 | |
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狀態 | 1 x RF Tx 1 x RF Rx 1 x Power |
RF 無線電 | |
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天線 | 2 dBi Omnidirectional Antenna |
Baud Rate | 10,000 ~ 250 bps |
組態 | via Utility tool |
群組 ID | 0~255 |
調變 | LoRa |
通訊協定 | Transparent transmit |
無線頻率 | 864~ 871.5MHz, 915~ 922.5MHz (channel: 32, recommend using 868 +/- 4 MHz) |
緩存大小 | 200 bytes |
傳輸功率 | 15 dBm (Max.) |
傳輸距離 (LoS) | up to 1500 m (with 10 kbps, in free field conditions) |
COM Ports | |
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Ports | 1 x RS-232 1 x RS-485 |
Baud Rate | 1200 ~ 115200 bps |
同位元 | None, Even, Odd |
Data Bit | 5, 6, 7, 8 |
電源 | |
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功耗 | 1 W |
機構 | |
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外殼 | Plastic |
尺寸 (mm) | 108 x 84 x 33 (W x L x H)(not include antenna) |
安裝 | DIN-Rail |
環境 | |
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工作溫度 | -25 ~ +75 °C |
儲存溫度 | -30 ~ +80 °C |
濕度 | 10 ~ 90% RH, Non-condensing |