User's Manual

5.Features
5.1 Transmission frame
The transmission begins immediately in case of LOCK and UNLOCK, TRUNK and PANIC is begun
after 0.5s.
The transmission frame consists of the synchronous frame and the data frame. The synchronous frame has
320bit synchronous codes that it will be used for the receiver to wake up. The data frame consists of 24bit
length identification code, 16bit security code and 4bit function code and 8bit crc code. 16million different
identification codes are available.
The security code is always changed in case of any of the buttons is pressed. Thetransmissiontimeistypically
300 milliseconds.
5.2 Battery saving
To prevent the battery exhaustion , the micro-computer of the transmitter is usually inactive. When the button
will be pressed, the micro-computer wakes up immediately and judges which button is pressing. Then the
micro-computer constructs the transmission frame and radiates it from the antenna .After transmitting, the
micro-computer switches stand-by mode by itself.
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