This document is the UB603-EVB User Manual, which provides detailed information on the functional interfaces and operation methods of the UB603-EVB. It guides users in using the UB603 module for feature demonstrations and software development.
The UB603‑EVB manual provides a detailed description of the board’s hardware interfaces, including the 60‑pin module connector, power input, audio, serial ports, SIM card slot, antenna, LCD and keyboard connections. It also lists the accessories supplied with the evaluation board such as the 6 V/2 A power adapter, earphones, antenna and serial cable.
Operational instructions cover power‑on methods (both power‑up and button‑press), network and call setup, firmware download procedures, and power‑off methods. Step‑by‑step guidance is given for connecting the board to a PC, configuring a terminal, inserting a SIM card, and using AT commands for telephony functions. This manual is written in Chinese.
| Module connector | 60‑pin |
|---|---|
| Power input | 6 V / 2 A DC |
| SIM card interface | Supports 1.8 V/3 V standard SIM cards |
| Serial ports | 2 RS232 standard serial ports |
| LCD interface | SPI standard |
| Keyboard interface | 5×5 matrix |
Set the power switch VBAT to ON, then press and hold the PWRON key for more than 3 seconds; the board will start normally.
Move the BOOT switch to the D/L position before starting the download tool.
A 6 V / 2 A DC power adapter connected to the A power connector.
Connect a serial cable to serial port 0 (labelled “N”) and configure the terminal settings on the PC.