The manual provides specifications, installation steps, and operation instructions for the DTP‑T05 GSM modem.
This document describes the DTP‑T05 series GSM modem, a low‑power module with a built‑in GSM radio and a microcontroller that supports remote telemetry and control. It outlines the module's functional blocks, interface options (RS232/RS485/TTL), and the naming convention for the B and C variants.
The guide covers technical parameters such as power supply requirements, communication settings, environmental limits, mechanical dimensions, antenna and SIM‑card connections, as well as reset procedures and AT‑command usage for sending and receiving SMS messages. This manual is written in Chinese.
| Input voltage | 5 ~ 12 V DC |
|---|---|
| Maximum power consumption | 5 W |
| Standby power consumption | 0.5 W |
| Communication speed | 9600 bps |
| Data format | 1 start bit, 8 data bits, 1 stop bit, no parity |
| Operating temperature range | -20 °C ~ 55 °C |
| Storage temperature range | -40 °C ~ 85 °C |
| Relative humidity range | 5 % ~ 95 % |
| Dimensions (DTP‑T05B) | 50 mm × 65 mm × 20 mm |
| Dimensions (DTP‑T05C) | 53 mm × 97 mm × 27 mm |
The module is shipped with the RS232 level interface as the default setting.
The module can operate with a supply voltage as low as 5 V.
Power‑cycle the module or pull the reset pin low for at least 10 ms, then wait more than 4 seconds before restarting.
The modem supports standard SMA‑type antennas, including a 70 mm helical antenna and a 10 mm suction‑cup antenna.