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Half-duplex up to 57600bps. |
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Auto band -rate setting. |
| ◆ | ISM band. |
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Full-duplex or half-duplex. |
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Spread Spectrum technology. |
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| 南樺 電子報 059 | 出刊日期 | 2005.11.21 |
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| 介紹 SST-2450 Wireless Modem Module RS-232/RS-485 Interface |
| SST-2450 使用串列發射頻譜及射頻技術的無線通訊技術，通訊距離可達 15 公里(需配合天線)，最大傳輸速度 57.6Kbps，具備 RS232 和 RS485 介面，不僅可用於點對點的通訊，也能架構在多點對多點的通信。SST-2450 是專門設計用於資料收集系統及控制系統上，可適用在各整劣的環境中。並可方便連結主控端和遠端設備，讓系統達到無遠弗屆的境界。 |
| 特點： |
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| 規格： |
| 1. Frequency Range : 2.4GHz (2410.496MHz ~ 2471.936MHz) |
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2. Channel Spacing : 4.096MHz |
| 3. Output Power : 0.05W |
| 4. Transmit power : 17dBm ± 2dBm |
| 5. Modulation technique : GMSK |
| 6. Radio technique : Direct sequence spread spectrum |
| 7. Duplex Mode : TDD (for Full-duplex) |
| 8. Number of channel : 16 |
| 9. Number of PN code : 16 |
| 10. PN code rate : 1.365 Mchips /sec. |
| 11. Communication distance : Depend on external antenna, default is 300M |
| 12. Maximum
data transfer rate in asynchronous mode : Full-duplex mode : 9.6Kbps Half-duplex mode : 28.2K |
| 13. Maximum
data transfer rate in synchronous mode : Full-duplex mode : 19.2Kbps Half-duplex mode : 57.6K |
| 14. Setting Method : Software setting |
| 15. Antenna : Can bend |
| 16. Antenna Connector : Reverse-Polarity SMA-Jack |
| 17. Data Format: N, 8, 1 or E, 8, 1 dependent on software setting |
| 18. Data bit error ratee Antenna : < 1/1000@ -102dBm |
| 19. Input voltage : 10~30Vdc |
| 20. Input current : Typical less then 250mA |
| 21. Consumption
: Transmission : 2W Receive : 1W |
| 22. Size : 106mm (L) x 76mm (W) x31mm (H) |
| 23. Weight : 200g |
| 24. Operating temperature : -10℃~50℃ |
| 25. Operating humility : 0~90% |
| 26. SST-2450 can work together with SST-2400(Change the 8051 chip of SST-2400). |
| Channel Mapping Table ： |
| Channel Code | Channel Freguency | Channel Code | Channel Freguency |
|---|---|---|---|
| 0 |
2410.499MHZ |
8 |
2443.267MHZ |
| 1 |
2414.595MHZ |
9 |
2447.363MHZ |
| 2 |
2418.691MHZ |
A |
2451.459MHZ |
| 3 |
2422.787MHZ |
B |
2455.555MHZ |
| 4 |
2426.883MHZ |
C |
2459.651MHZ |
| 5 |
2430.979MHZ |
D |
2463.747MHZ |
| 6 |
2435.075MHZ |
E |
2467.843MHZ |
| 7 |
2439.171MHZ |
F |
2471.939MHZ |
| 應用範例 pdf 檔 |
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