The TaidaXin TDX-868A user manual provides specifications, installation, configuration, and operation instructions for the embedded wireless data…
The TDX-868A is an embedded wireless data transmission radio designed for point‑to‑point and point‑to‑multipoint communication in industrial automation, power dispatch, water‑level monitoring and many other fields. It supports both voice and data with transparent signal transmission and offers selectable frequency bands of 150, 230, 350 and 450 MHz.
The manual covers technical specifications, hardware installation, interface definitions, dip‑switch frequency setting, power‑supply requirements, antenna and feed‑line installation, grounding and lightning protection, as well as PTT control timing 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) |
| Supply voltage | 12 V DC |
| Dimensions (W×H×D) | 96 × 58 × 17 mm |
| Weight | 198 g |
| Interface options | TTL, RS‑232, RS‑485 |
| Number of selectable frequency points | 256 |
The frequency can be set manually with the dip‑switch or by using the company’s PC software to write the frequency parameters.
A 12 V DC power supply capable of delivering at least 2 A is required for 5 W output.
The radio provides three standard interfaces: TTL level, RS‑232 and RS‑485.
The usable sensitivity is ≤ ‑120 dBm (12 dB SINAD).