MagTek MICRSafe99875466 - Manual (Page 49)

Section 5. USB Communications
41
Response Data: None
Result codes: 0 (success)
Example Request (Hex):
Cmd Num Data Len Data (SWB)
07 04 53 57 42 0D
Example Response (Hex):
Result Code Data Len Data
00 00
Example Legacy Command Response (send as keystrokes):
SWB=00000000