Samsung QM49H User Manual page 35

Wall_SNo: Product Number code assigned to the product
10x10 Video Wall Model : ( 1 ~ 100)
Set Number
1
2
...
99
100
• Ack
Header Command ID Data length
0xAA 0xFF 4
• Nak
Header Command ID Data length
0xAA 0xFF 3
"ERR": A code showing what error has occurred
Data
0x01
0x02
...
0x63
0x64
Ack/Nak r-CMD Val1
'A' 0x89 Wall_Div
Ack/Nak r-CMD Val1
'N' 0x89 ERR
Val2 Checksum
Wall_
SNo
Checksum
35