Power On /Off Timing; Power-On Timing; Power-Off Timing; Figure 28: Power-On Timing - Opticon MDI-4000 Series Serial Interface Manual

5.5 Power ON /OFF Timing

The power on/off timing of the scan engine is described below.
5.5.1

Power-On Timing

Power-on timing indicates the time from power on until barcodes are readable.
ON
Vcc
OFF
High
TRIGn
Low
High
RTS
Low
I
PK
Wave form
Rush
State
Cannot be used when Handshaking is set to MODEM, because the RTS signal is "High."
*1

Figure 28: Power-On Timing

Startup Time Modes
Mode
Normal Boot
Fast Boot Mode
* For more information, see
5.5.2

Power-Off Timing

When the power is turned off while an input signal to the scan engine is high, leakage current is
drawn from that signal. So, set all input signals to the scan engine to "High impedance" or
"Low."
When power to the scan engine is turned off (V
before turning on the power again.
Command acceptable
Boot time
I
OP
I
STD
Boot Standby
Condition
Configured*
"Fast Boot Mode" on page
MDI-4000 Series Serial Interface Manual
10 ms -
Read
(IF:UART/USB V
Min. Typ.
- 510
425
12.
of 1V or less), you need to wait at least 10 ms
CC
* Configured
I
LOW
Standby Low power
= 3.3V/5.0V TA = 25°C)
CC
Max. Unit
- ms
- ms
47