Ask Proxima E3000 series User Manual page 70

Serial Command Specifications
2.16 Card Reader
Command "A16"[CR] (Hex: 41 31 36 0d)
Details Select Card Reader as input source.
OK
Return
NG
2.17 USB Autorun
Command "A17"[CR] (Hex: 41 31 37 0d)
Details Select USB Autorun as input source.
OK
Return
NG
Note:[ACK] [CR] is the effective return for commands received.
70
[ACK] [CR]
"?" [CR]
[ACK] [CR]
"?" [CR]