User Manual

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5.Features
5.1 Transmission frame
The transmission begins immediately in case of LOCK or UNLOCK or button is pressed.
The transmisssion frame consists of the synchronous frame and the data frame. The synchronous frame has 30 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 function code. 16million different identification codes are available.
The security code is always changed in case of any of the buttins is pressed. The transmission time is typically 600 milliseconds.
5.2 Battery saving
To prevent the battery exhaustion, the microcomputer of the transmitter is usually inactive. When the button will be pressed,
the microcomputer wakes up immediately and judges which button is pressing. Then the microcomputer constructs the
transmission frame and radiates it from the antenna. After transmitting, the microcomputer switches stand-by mode by itself.
INFORMATION TO THE USER
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one more of the following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and receiver.
 Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
 Consult the dealer or an experienced radio/TV technician for help.
WARNING
Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the
equipment.