The Taida Xin TDX-868A embedded wireless data transmission radio user manual provides specifications, installation, operation, and maintenance instructions.
The TDX-868A is an embedded wireless data transmission radio designed for industrial automation, power dispatch, water‑level monitoring, and other remote data acquisition applications. It supports both voice and data transparent transmission across four frequency bands (150/230/350/450 MHz) with selectable data rates of 1200/2400/4800 bps.
The manual covers product features, technical specifications, hardware installation, frequency setting via dip‑switch or software, power supply requirements, antenna and grounding guidelines, interface definitions (TTL, RS‑232, RS‑485), operation procedures, PTT timing, troubleshooting, and ordering information. This manual is written in Chinese.
| Frequency Bands | 150/230/350/450 MHz |
|---|---|
| Data Transmission Rates | 1200/2400/4800 bps |
| Transmit Power | 0.5 W – 5 W (adjustable) |
| Interface Options | TTL, RS‑232, RS‑485 (DB15 connector) |
| Dimensions | 96 × 58 × 17 mm |
| Weight | 198 g |
| Operating Temperature | -25 °C ~ +55 °C |
| Frequency Stability | ±2.5 ppm |
| Channel Spacing | 25 kHz |
The frequency can be set either by using the dip‑switch on the unit, which allows 256 selectable points with 25 kHz spacing, or by using the provided PC software to program the frequency.
It offers three standard interface levels—TTL, RS‑232, and RS‑485—through a DB15 female connector, allowing direct connection to microcontrollers or other equipment.