5
1.3.2 Scan engine interface without decoding
Interface circuit is a ZIP (0.5mm-8p) interface which communicates with outside
world. It’s the microprocessor that controls the scan engine’s work and takes the data
to decode.
Pin NO.
Pin Name
Description
1
、
2
GND Ground
3 SOS
Scan starting signal:
When the laser line reaches the edge, the signal will
transform from high to low or from low to high in order
to detect the start and finish of a scan.
4 DATA
The width of the DATA signal stands for the width of
black and white bars. The output is CMOS level.
High level=Bars, Low level=Spaces
5 TRIG
Allowing Trigger scanning signal:
TRIG=High: The scan engine will enter a power-saving
mode;
TRIG=Low: The scan circuit will be activated to the
ready state.
6 LASER-EN
Activation signal
LASER-EN=High or not connected: The laser will be
closed;
LASER-EN=Low and TRIG=Low: The scan engine
circuit will be activated and ready to scan barcodes. The
laser will open.
7
IR-TRIG
Optional, IR trigger pin, only for WSL3000
8
VCC
Power Supply: DC 5V
Summary of Contents for SC050
Page 1: ......
Page 9: ...7 1 3 4 RS485 interface NO Function 1 Trigger optional 3 A 8 B 5 GND 9 DC 5V optional...
Page 10: ...8 1 3 5 USB interface NO Function 1 VCC 2 D 3 D 4 GND...
Page 11: ...9 1 3 6 PS2 Keyboard wedge Omission...
Page 27: ...25 Odd parity C0301 Even parity C0302 END...
Page 64: ...62 Character Hex 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 0 30 1 31 2 32 3 33...
Page 65: ...63 4 34 5 35 6 36 7 37 8 38 9 39 3A 3B 3C 3D 3E 3F 40 A 41 B 42 C 43 D 44 E 45 F 46 G 47...
Page 67: ...65 5C 5D 5E _ 5F 60 a 61 b 62 c 63 d 64 e 65 f 66 g 67 h 68 i 69 j 6A k 6B l 6C m 6D n 6E o 6F...