Power State Transitions - Sierra Wireless AirPrime SL808 Series Product Technical Specification & Customer Design Manuallines

Product Technical Specification & Customer Design Guidelines
Table 6-5: Supported SL808X power states (Continued)
State
• Host power is connected
Module is powered down (drawing minimal current from
Off •
host power supply)
• Host power is disconnected from module
Disconnected
• All module-related voltages are at 0 V.
Table 6-6: Power state transitions (including voltage / temperature trigger levels)
Transition
Normal to Low Power
Low Power to Normal
Low Power to Normal
or
Remain in Normal
(remove warnings)
Normal (issue warning)
Power off/on
(host-initiated)
a. Notification issued only if previously enabled. See [4] AirPrime UMTS MiniCard CnS Reference for details.
80 Proprietary and Confidential - Specifications subject to change
Description

6.1.1 Power state transitions

The module monitors supply voltage and operating temperature and notifies the
host when critical threshold limits are exceeded. (See
Power state transitions may occur:
• Automatically, when critical supply voltage or module temperature trigger
levels are encountered. See
• Under host control, using available AT or CnS commands in response to user
choices (for example, opting to switch to airplane mode) or operating condi-
tions.
Voltage [TBD]
Trigger V
4.3
VOLT_HI_CRIT
3.3
VOLT_LO_CRIT
3.9
VOLT_HI_NORM
3.4
VOLT_LO_NORM
3.35
VOLT_LO_WARN
-
-
Host
powered


Figure 6-1 for details.
Temperature [TBD]
°
Trigger C
-25
TEMP_LO_CRIT
108
TEMP_HI_CRIT
-15
TEMP_NORM_LO
85
TEMP_HI_NORM
95
TEMP_HI_WARN
-
-
USB
Modem
interface
powered
active
 
 
Table 6-6 for details.)
Notes
• RF suspended
• CNS_RADIO_POWER notification
a
issued
• RF resumed
CNS_RADIO_POWER notification
•
a
issued
•
• Power off recommended when
supply voltage or module
operating temperature is critically
low or high.
• See Procedure: Power on/off
page 66.
RF
enabled


on
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