Radio Modem 900 MHz RS-232/485 ICP DAS SST-900B
Features
- Half-duplex up to 115200 bps
- Internal Self-Tuner
- ISM Band 900 MHz
- Typical wireless transmission range is 700 meters (LOS)
- UI Configuration via external switch
Introduction
The SST-900B is a radio frequency modem with an RS-232/RS-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.
Application
Specification
| Wireless | |||
| Operating Frequency Range | 915 MHz (902 MHz ~ 928 MHz) | ||
| Channel Spacing | 1.5 MHz | ||
| Transmit Power | Up to 20 dBm | ||
| Number of Channel | 16 | ||
| Transmission Range | 700 m | ||
| Receive Sensitivity | -100 dBm @ 150k bps | ||
| Antenna | |||
| Type | 3 dBi Omni-directional, bendable | ||
| Connector | Reverse Polarity SMA (RP-SMA) Plug (Male) | ||
| Com 0 Settings | |||
| Interface | RS-232 | TxD, RxD, GND | |
| RS-485 | DATA+, DATA-; internal self-tuner ASIC; Non-isolated | ||
| Baud Rate | 1200 ~ 115200 bps | ||
| Data Bit | 8 | ||
| Parity Check | None, Even , Odd | ||
| Stop Bit | 1 | ||
| Power | |||
| Operating Voltage | +10 VDC ~ +30 VDC | ||
| Mechanical | |||
| Dimensions (W x L x H) | 84 mm x 108 mm x 33 mm | ||
| Environment | |||
| Operating Temperature | -25 °C ~ +70 °C | ||
| Storage Temperature | -40 °C ~ +80 °C | ||
| Humidity | 0 ~ 90% RH, Non-condensing | ||
Ordering information
| SST-900B | 900 MHz RS-232/RS-485 Wireless Modem |