User's Manual

AnyDATA.NET Inc. AnyTime AnyPlace Any Wireless Data Solution
TM
4.3 Power Down Registration Protocol for CDMA device
Before DTEV-Dual is powered off, it has to send power down registration message to the
CDMA base station to help the base station to maximize its capacity. Depending on air interface
environment, it may take up to 12 seconds according to CDMA technical standard.
4.3.1 Using AT command (When Vcc is applied to VEXT_DC)
After waiting for 12 seconds, the host device may shut down the power to DTEV-Dual
Before powering off DTEV-Dual, send “AT+POWEROFF” to DTEV-Dual.
Device connected to DTEV-Dual
DTEV-Dual
4.3.2 Using POWER_ON (Pin 30) (Only when Vcc is applied to BATT_INT)
Booting stage. In normal operation
T1+12sec. Shut off the Vcc to
DTEV-Dual
Status of POWER_ON (Pin 30)
T1
Powering the module off. 2 sec
HIGH
LOW
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AD-2001-06-28 Ver 1.1
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