Huawei MU509 Series Hardware Manual page 33

HUAWEI MU509 Series HSDPA LGA Module
Hardware Guide
Figure 3-5 Power on timing sequence
Table 3-6 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 3-6 Power off timing
Table 3-7 Power off timing
Parameter
T
POFF
T
PD+
Issue 09 (2014-03-06)
Comments
POWER_ON_OFF turn on time.
POWER_ON_OFF Valid to USB D+
high
PD+
Comments
POWER_ON_OFF turn off time.
POWER_ON_OFF Valid to USB
D+ high
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Description of the Application Interfaces
Time(Nominal values)
0.5 < T
PON
4
time.
Time(Nominal values)
0.5 < T
POFF
4.6
Units
< 1 s
s
Units
< 4 s
s
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