Opticon MDI-4100 - Recover from Low Power Mode (USB); Figure 27: Recovery Example from Low Power Mode (USB)

MDI-4000 Series Serial Interface Manual
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5.4.3 Recover from Low Power Mode (USB)
You can use a signal (TRIGn, CTS, and AIM/WAKEn) or a command to recover from low power
mode. Recovery starts when the host starts sending a command through USB. Approximately
43 ms after the command is sent, the scan engine becomes active and is ready to read
barcodes.
Note: USB always accepts the command and changes to Active mode when it sends the
command.
*1
MDI-4x00 and MDI-4x50 have different recovery times: MDI-4x00 = 18 ms, MDI-4x50 = 43 ms.
Figure 27: Recovery Example from Low Power Mode (USB)
Read
Standby
Low pwer
I
OP
10 ms -
I
LOW
* Configured
Low power
State
I
STD
I
LOW
Recovery
*1
Active
Suspend
USB Host
Wave form
TRIGn
High
Low
or
Trigger command “Z” etc
USB+