Huawei MC509 Series Hardware Manual page 27

HUAWEI MC509 Series CDMA LGA Module
Hardware Guide
Figure 3-4 Power on timing sequence
Table 3-4 Power on timing
Parameter
T
PON
T
PD+
If the DTE needs to detect the PID/VID of module during the BIOS phase, the
detection time should exceed the T
Figure 3-5 Power off timing
Issue 02 (2013-05-06)
Comments
POWER_ON_OFF turn on time.
POWER_ON_OFF Valid to USB
D+ high
PD+
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Description of the Application Interfaces
Time(Nominal values)
0.5< T
PON
4
time.
Units
<1 s
s
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