Zebex Z-3051BT, User Manual, Page: 29 / 72

Handheld Bluetooth® CCD/Laser Scanner 21
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SER
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ANUAL
Scanner to remote application
Data Format of Packet
To send a data (barcode) to the remote application, the BT scanner has to encapsulate it:
EAH(Header)
Size of
payload
FEH(Format
Byte)
Data
ID
Data
AEH(End
of Byte)
Reserved
Byte
1 byte 1 byte 1 byte 1 byte Varies 1 byte 1 byte
Title Definition
Header Character (EAH) The character ID at the head of every data.
It has to start with EAH.
Size of Payload The encapsulated data length excluding
header character.
Format Byte (FEH) Differentiate data format; barcode data is
always FEH.
Data ID The number of each data. If receive the
same ID more than once, only the first one is
valid, delete the rest.
Data Decoded barcode data
End of Byte (AEH) Record data ends.
Reserved Byte Reserved for future use
Example:
If barcode data is "ABCD", than sender sends out:
EAH + 9H + FEH + ID + "ABCD "+ AEH + Reserved Byte
9 = 1+1+1+4+1+1
Acknowledge packet
55H (Header ) Data ID 55H (end of byte)
1 byte 1 byte 1 byte
Example:
If scanner sends out:
EAH , 9H , FEH , 01H , "ABCD ", AEH , EEH
Remote acknowledges:
55H +01H + 55H