MDI-4000 Series Serial Interface Manual
28
4.2.2
USB-COM Interface Signal
An IRISO Electronics Co., Ltd. 9681-12(12PIN) (bottom contact) equivalent connector is used.
No. Name
Function
I/O
Conditions
State
Notes
1
TRIGn
Trigger
In
L: Start operation
2
AIM/WAKEn
Recovery signal
from Low Power
state
In
L: Recover from
low power state
H: No action
100kΩ pull up
on module
Aiming control
signal in other
states than Low
Power
In
L: Aiming LED on
H: Aiming LED
off
3
GR_LEDn
Good read LED
Out
L: LED on
H: LED off
4.7kΩ pull up
on module
EX_ILLUM
Control of an
external light
source.
Out
Configured
*1
L: External
Illumination On
H: External
Illumination Off
4
BUZZERn
Buzzer
Out
100kΩ pull up
on module
*2
5
POWERDWN Indicates Low
Power state
Out
L: Normal state
H: Low Power
state
100kΩ pull up
on module
6
RTS
Communication
control signal to
host system
Out
Put it to Open.
10kΩ pull up
on module
7
USB+
Communication
control signal
from host
system
In/Out
100kΩ pull up
on module
8
TxD
Transmitted
data signal
Out
Put it to Open.
10kΩ pull up
on module
9
USB-
Received data
signal
In/Out
10
GND
System ground
11
VCC
Power input
In
3.3V or 5.0V
12
Reserve
In
N.C
*1
When this is set, Good Read LED cannot be used.
*2
Tone and sound pressure are controlled by the pulse-width modulation (PWM) signal.
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