HP LD4210 42-inch LCD Digital Signage Display - Manual (Page 96)

[o][][Set ID][][OK/NG][Data][x]
47. Serial no. Check (Command: f y)
To read the serial numbers
Transmission
[f][y][][Set ID][][Data][Cr]
[Data] Data FF (to read the serial numbers)
Acknowledgement
[y][][Set ID][][OK/NG][Data1]to[Data13][x]
[Data] The data format is ASCII Code.
48. S/W Version (Command: f z)
Check the software version.
Transmission
[f][z][][Set ID][][Data][Cr]
[Data] FFH: Read
Acknowledgement
[z][][Set ID][][OK/NG][Data][x]
49. Input Select (Command: x b)
To select input source for the display.
Transmission
[x][b][][Set ID][][Data][Cr]
88 Appendix C Command reference ENWW