Siemens HC15 Betriebsanweisung PDF herunterladen (Seite 18)

Getting Started with HC15

3 Using the HC15 Module

HC15_startup_v02 Page 18 of 36 2007-2-16

Confidential / Released

3 Using the HC15 Module

The following examples show the basic steps required to register to the network, to select UMTS mode

or GSM mode and to attach to HSDPA or GPRS.

The examples are based on a UICC card provisioned by the German network operator T-Mobile. The

used UICC card is capable of UMTS and GSM and enables the subscriber to switch back and forth

between both networks.

3.1 AT Command Interpreter

AT commands can be entered on two interfaces of the HC15 module:

• Siemens HSDPA USB Com Port

• Siemens HSDPA USB Modem

Yet, we recommend that the Siemens HSDPA USB Com Port be used for controlling the HC15 mod-

ule, eg. for entering AT commands and receiving URCs, while the Siemens HSDPA USB Modem is

mainly intended for use as a modem. For greater detail refer to [2], especially sections "AT Command

Interpreter" and "Unsolicited Result Code Presentation".

As described in Section 2.6, each interface is assigned a virtual COM port of its own, which enables

accessing the interface from the host application or, accordingly, the . To easily identify both interfaces

you can use the AT^SQPORT command:

If you need to operate the HC15 from both interfaces at a time, bear in mind that both are handled by

the same AT command interpreter. As a result, AT commands entered on both interfaces are not exe-

cuted in parallel but sequentially, one after the other. So, an AT command issued on one interface will

be buffered on this interface to be executed after the other interface has completed processing earlier

AT command(s). The buffered command string is not echoed, but will be indicated when executed.

AT^SQPORT

Application

On the AT command interface, the Siemens

HSDPA USB Com Port is referred to as "Applica-

tion".

AT^SQPORT

Modem

On the AT command interface, the Siemens

HSDPA USB Modem is referred to as "Modem".

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 35 36

Keine Kommentare

Siemens HC15 Betriebsanweisung Seite 18