The RemoDAQ-8554A GPRS DTU is an industrial‑grade wireless communication terminal designed for GSM/GPRS networks. It supports RS‑232/RS‑485 interfaces, offers flexible power options, and is suitable for harsh indoor or outdoor environments across various industries.
The manual provides product overview, technical specifications, step‑by‑step installation of SIM card and wiring, configuration of terminal parameters, and troubleshooting guidance. Appendices include a debugging case study and host‑side programming protocol details. This manual is written in Chinese.
| GPRS data rate | 300~115200 bits/s |
|---|---|
| Antenna interface | 50 Ω SMA connector |
| SIM card voltage | 3 V |
| Power supply voltage | +12 V ~ +30 V DC |
| Standby power consumption | 30 mA @ +12 V DC |
| Dimensions | 112.5 mm × 70 mm × 22 mm (excluding antenna and connectors) |
| Weight | ≈ 160 g |
| Operating temperature | -20 °C to +55 °C |
Open the top SIM‑card protective cover, insert the SIM card with the notch facing outward until it clicks into place, then close the cover securely.
Set the DIP switches on the back of the board: switches 1‑4 to OFF and switches 5‑8 to ON, then close the cover; the module will operate in RS‑485 mode.
The device accepts a DC input voltage between +12 V and +30 V, with ripple less than 300 mV.