1D 2D Barcode Scanner , Two Dimensional Code Scanner With High
Stability
Name: Two-dimensional Barcode Scanning Module
Model: BT-321
Introduction:
1. Opaque parts of window should not obscure illumination light,
aiming light and lens.
2. Apply high wear-resistant material, such as double-sided hard
coating material.
3. It is better to make window glass parallel to lens. Window must
be perpendicular to the front plate of NT-401 and distance between
them should not exceed 1mm. For tilt design , the distance must be
more than 1mm. Meanwhile, the distance and tilt angle ensure the
light is not reflected into lens by the window glass.
Communication Interface:
BT321 device communication interface is: USB HID-KBW, TTL-232,
RS232, RS485
1. USB HID-KBW: Based on USB keyboard emulation device, it can be
directly connected to PC as a plug-and-play device. No driver is
required.
2. TTL-232: The BT321 communicates with the host via a serial port
(TTL level), which adapts to most system architectures.
3. RS232: The BT321 can communicate with the host interface via a
cable (RS232 level signal).
4. RS485: BT321 can communicate with the host interface through the
connection line (RS485 level signal).
Hardware flow control of the serial communication interface is not
provided on the BT321.
The default configuration of the BT321's serial communication
interface is 115200bps, 8-bit data bits, no parity, and 1 stop bit.
Interface Description:
The following figure shows the line sequence description and signal
description of the BT320's 12-pin connector and Micro USB
connector.
12-pin connector (1.25mm pitch):
| PIN | Signal | I/O | Description |
| 1 | VCC 1 | - | 3.8V-16V power input (including 5V input) |
| 2 | VCC2 | - | 3.0V-3.6V power input (including 3.3V input) |
| 3 | GND | - | Power ground |
| 4 | D- | I/O | USB communication D- data signal |
| 5 | D+ | I/O | USB communication D+ data signal |
| 6 | TXD | O | TTL-232 signal transmission |
| 7 | RXD | I | TTL-232 signal reception |
| 8 | RS232-TX | O | RS-232 signal transmission |
| 9 | RS232-RX | I | RS-232 signal reception |
| 10 | 485-A | I/O | RS485 signal A |
| 11 | 485-B | I/O | RS485 signal B |
| 12 | NTrig | I | Trigger signal input, keep low level for more than 20ms to trigger
reading |
Standard Micro USB connector:
| PIN | Signal | I/O | Description |
| 1 | VCC | - | 3.8V-16V power input |
| 2 | D- | I/O | USB communication D- data signal |
| 3 | D+ | I/O | USB communication D+ data signal |
| 4 | ID | - | NC |
| 5 | GND | - | Power ground |
Dimensional drawing:
Physical parameter:
Scan head volume (length x width x height): 64 mm × 65 mm × 29 mm
Weight: 41.4 g
Scanning performance:
Image sensor: 100W pixel CMOS
Scan recognition distance: 10-120 cm
Reading mode: hardware trigger / induction / continuous three modes
Reminder light: three-color status reminder light
Scan type: image type
Field of view angle: 36° horizontals, 23° vertical, 55° diagonal
Reading accuracy: 1D code ≥ 6mil QR code ≥ 15mil
(High-density barcode recognition has a short depth of field)
Decoding ability: Interpret standard one-dimensional,
two-dimensional barcode
Electrical parameters:
Input voltage: 3.0- 3.6 VDC, 3.8- 1 6 VDC
Working current: 232 mA (peak)
Standby power: 25mA
Host system interface: USB, TTL-232, RS232, RS485
Environmental parameters:
Working temperature: -20 ° C ~ 70 ° C
Storage temperature: -40 ° C ~ 80 ° C
Humidity: 5%~95%, no condensation
Ambient illumination: 0~100,000
Application Of 2D Barcode Scanner
Potential applications include medical diagnostic and analytical
equipment; rail, airport, resort, event, car park and border
control access control kiosks; lottery terminals/ticket checkers;
e-voting machines; retail point-of-sale self-checkout equipment;
smart lockers; banking ATMs; and in-vehicle ticket validators used
in buses, subways and trains
Self-service kiosks and ticket vending machines
2) Access control gates & turnstiles for stadia, building access &
transportation
3) Retail voucher redemption and loyalty cards
4) Car park ticket machines and automatic barriers
