3-1
3 Structure and Principle
This chapter introduces the structure and principle of W140A, covering software and
hardware structure and principle, interfaces and networking modes.
3.1 Structure and Working Principle
3.1.1 Hardware Structure
With a standard waterproof and dustproof structure, W140A can be installed on the
roof, outside the window or on a special pole. The physical appearance of W140A is
shown in Fig. 3.1-1.
Fig. 3.1-1 Appearance of W140A
CPU is the core of W140A, and its memory may be 512K BOOT, 4M FLASH and
16M SDRAM.
3.1.2 Software Structure
The software function structure of W140A is given in Fig. 3.1-2.