Key facts
- Manuals
- 2
- Languages
- ZH
- Last added
- 2011-10-04
Featured Shanghai展桥信息 manuals

Shanghai Exhibition Bridge UB603-EVB User Manual
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.
Covers: Preface · Overall Description · Accessories Overview · Operation Instructions · Power On · Network and Call Setup
Spreadbridge UB603 GSM/GPRS Module User Manual
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.
Covers: Product Overview · Mechanical Characteristics · Power Supply Interface · UART and Serial Interfaces · Audio Interface · LCD Interface
Latest Shanghai展桥信息 manuals
Shanghai Exhibition Bridge UB603-EVB User Manual
User Manual 8 pages · 396 KB · ZHUser manual for the UB603‑EVB evaluation board, covering hardware interfaces, power‑on procedures and basic operation steps.
Spreadbridge UB603 GSM/GPRS Module User Manual
User Manual 31 pages · 1 MB · ZHThe Spreadbridge UB603 GSM/GPRS module user manual provides hardware overview, interface definitions, specifications, and usage guidelines.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Shanghai展桥信息 manuals
How do I power on the UB603‑EVB using the button?
Set the power switch VBAT to ON, then press and hold the PWRON key for more than 3 seconds; the board will start normally.
How can I switch the boot mode for firmware download?
Move the BOOT switch to the D/L position before starting the download tool.
What voltage range does the UB603 operate on?
The module works with a DC supply ranging from 3.3 V to 4.2 V, with a typical value of 4.0 V.
Which GSM frequency bands are supported by the UB603?
It supports GSM850, EGSM900, DCS1800 and PCS1900 bands.
