Sierra Wireless AirPrime MC7350, Руководство по интеграции оборудования

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4114814 Rev 1.1 November 19, 2013 9
Hardware Integration Guide Power Interface
2.3. Power States
The MC7350 mini card has four power states as detailed in the following table.
Table 3. Supported MC7350 Power States
State Details
H
o
s
t
is
P
o
w
e
re
d
M
o
d
u
le
i
s
P
o
w
e
re
d
U
S
B
In
te
rf
a
c
e
A
c
ti
v
e
R
F
E
n
a
b
le
d
Normal
(Default
state)

Module is active

Default state when VCC is first applied in the
absence of W_DISABLE_N control

Module is capable of placing / receiving calls,
or establishing data connections on the
wireless network

Current consumption is affected by several
factors, including:

Radio band being used

Transmit power

Receive gain settings

Data rate

Number of active Tx time slots
   
Low power
(‘Airplane
mode’)

Module is active

Module enters this state:

Under host interface control:

Host issues
AT+CFUN=0
, or

Host asserts W_DISABLE_N, after
AT!PCOFFEN=0
has been issued.

Automatically, when critical temperature or
voltage trigger limits have been reached
   
Sleep

Normal state of module between calls or data
connections

Module cycles between wake (polling the
network) and sleep, at network provider-
determined interval.
   
Disconnected
Host power source is disconnected from the module and
all voltages associated with the module are at 0 V.
   