Installation Guide
Table Of Contents
- 1 Product Overview
- 2 Communication
- 3 Hardware Overview
- 4 Routing guidelines
- 5 Production Guideline
- 6 Packaging – Tape and Reel Information
- 7 SW integration
- 8 Operational and Regulatory information
- 9 Environmental Declaration
- 10 Terminology and Abbreviations
C5621 and C33 User Guide
1/1553-KRD 131 24 Uen Rev D 2011-11-22
Ericsson AB 2011
25 (37)
Ericsson Confidential
7.4 State machine
The state machine focuses on the main states of the module; states of the
mobile radio (Radio On/Off) and the GPS radio (GPS On/Off). The transitions
in the state machine that require the Software (radio) and GPS to be enabled
can be made using the WMCore service (recommended) or AT commands
directly. In Windows 7, several of the transitions are caused by the WWAN
(Network) driver.
The transition between HW Off and states where the radio is on can be made
automatically by the module without including any host software, see chapter
2.2.
The module supports a SW Off (D3 hot) state where most functionality is
turned off in the mobile broadband module. The main intention with the state is
to prepare the module to be powered off. Among other things is the SIM card
turned off. In the SW Off state it is possible to turn the module back on again
using AT commands (AT+CFUN). When the module is turned on the SIM card
is reset and all functionality of the mobile broadband module is turned on
again.
Additionally, the module supports a separate HW control of GPS Off, see
chapter 4.3.6.2. This feature is not depicted in Figure 25.
HW Off
(D3)
Radio Off
GPS Off
Radio Off
GPS On
Radio On
GPS On
Radio On
GPS Off
Module Powered
(Hardware && Software
Enabled && GPS Disabled)
Module Powered
(Hardware && Software
Enabled && GPS Enabled)
Module Powered
(Software Disabled &&
Hardware Enabled && GPS
Enabled)
Module Powered
( (Hardware || Software
Disabled) && (Hardware ||
GPS Disabled) )
GPS Enable
GPS Disable
GPS Enable &&
HW Enabled
HW Disable ||
GPS Disable
Hardware &&
Software Enabled
Hardware ||
Software Disabled
Software Enabled
Software Disabled
SW Off
(D3 Hot)
HW Disable ||
SW Disable
Software Off
Software Off
Software Off
Software Off
Software On
(Software &&
Hardware Enabled)
Software On
(Software ||
Hardware Disabled)
Figure 10, State machine for C5621 (Same applicable for C33 - Excluding
GPS events)