This manual describes in detail the hardware structure, application interface, main functions and performance indicators of UB603 wireless module, guiding users to use the module to quickly and conveniently design various wireless products.
This manual describes the UB603 GSM/GPRS wireless module, its hardware structure, supported network bands, and key functional blocks. It includes detailed information on power supply options, UART, audio, LCD, keypad, SIM, ADC, GPIO, and antenna interfaces, as well as mechanical dimensions and connector pinout.
The document also lists the electrical specifications, environmental limits, and recommended operating conditions, helping designers integrate the module into various wireless terminal products such as public phones, Wi‑Fi cards, handheld devices, and vehicle‑mounted equipment. This manual is written in Chinese.
| Power supply voltage range | 3.3 V – 4.2 V (typical 4.0 V) |
|---|---|
| Supported frequency bands | GSM850 / EGSM900 / DCS1800 / PCS1900 |
| GPRS class | Class B, multi‑slot Class 10 |
| Off‑mode current consumption | < 100 µA |
| Sleep‑mode current consumption | < 2 mA |
| Operating temperature range | -20 °C to +55 °C (normal), -30 °C to +80 °C (restricted) |
| Storage temperature range | -40 °C to +85 °C |
The module works with a DC supply ranging from 3.3 V to 4.2 V, with a typical value of 4.0 V.
It supports GSM850, EGSM900, DCS1800 and PCS1900 bands.
The module uses a 60‑pin board‑to‑board connector. Key pins include VBAT, VOUT, VRTC, GND, GPIO, SIM signals, LCD signals, and buzzer.