> 4.2 | Interfaces

> 4.2.1 | ASC0 - Serial Device

> ASC0, an Asynchronous Serial Controller, is a 9-wire serial interface. It is described in [2]. Without a running Java application the module can be controlled by sending AT commands over ASC0. Furthermore, ASC0 is designed for transferring files from the development PC to the module. When a Java application is started, ASC0 can be used as an RS-232 port or/and System.out. Refer to [3] for details.