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The SST-900B is a radio frequency modem with an RS-232/485 interface port and is designed for data acquisition and control applications between a host and remote sensors. It is also useful for those applications where the installation of cable wire is inconvenient.
The SST-900B module is a wireless module that works in a frequency range of 902-928 MHz, and includes adjustable 16 RF channels and each channel can be allocated one of sixteen group IDs. The SST-900B can be used not only in peer-to-peer mode but also in a multi-point structure.
| CPU Module | |
|---|---|
| CPU | 8-bit microprocessor |
| LED Indicators | |
|---|---|
| Status | 1 x Power 1 x RF TxD 1 x RF RxD |
| RF | |
|---|---|
| Antenna | 2 dBi Omni-Directional antenna |
| Channels | 16 |
| Data Transmission Rate | 150 kbps |
| Transmission Power | Up to 20 dBm |
| Transmission Distance (LoS) | 700 m (Typical) |
| COM Ports | |
|---|---|
| Ports | 1 x RS-232 (TxD, RxD and GND) 1 x RS-485 (DATA+, DATA-; internal self-tuner ASIC; Non-isolated) |
| Baud Rate | 1200 ~ 115200 bps |
| Parity | None, Even, Odd |
| Data Bit | 8 |
| Stop Bit | 1 |
| Power | |
|---|---|
| Input Range | +10 VDC ~ +30 VDC |
| Consumption | 0.48 W |
| Mechanical | |
|---|---|
| Casing | Plastic |
| Dimensions (mm) | 84 x 108 x 33 (W x L x H) |
| Installation | DIN-Rail |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -40 ~ +80 °C |
| Humidity | 5 ~ 95% RH, Non-condensing |
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