RTscan RT203 Installation guide

FQA For RTscan’s Barcode Reader
1
FQA FOR RT203/ RT830A/ RT830B/ RT860 BARCODE READER
Q: Does the barcode reader support image capture?.....................................................2
Q: Does the barcode reader support Aztec code or Maxi code?....................................2
Q: Does the RT203 / RT830B barcode reader can be connected directly via
TTL-RS232? What kinds of interface are supported?.................................................... 2
Q: What is the difference between USB Virtual-COM and USB-HID?............................2
Q: What is the best reading distance of the barcode reader?........................................2
Q: Does the barcode reader support sense / presentation mode?............................... 2
Q: Does the barcode reader support to read multiple bar codes one time
simultaneously?................................................................................................................. 2
Q: How to fix the barcode reader RT203/ RT830B in my terminal?............................ 3
Q: Can the barcode reader work on Linux, Android system?........................................ 3
Q: How to improve the scanning speed?......................................................................... 3
Q: The barcode reader read bar code but without any output......................................3
Q: Bar codes cannot be read............................................................................................. 3
Q: Incorrect output............................................................................................................ 4
Q: Can the barcode reader connect to the Micro-controller?........................................ 4
Q: Can the barcode reader read more than one setup codes one time?.......................4
Q: Can the reader work in a dark environment?............................................................ 4
Q: Can the reader connect to Wiegand?...........................................................................4
Q: Does the barcode reader can decode a bar code from smart phone screen? How
about the performance of reading from phone screen?................................................ 5
Q: Do you provide support for software development?.................................................5
Q: Can the output of the reader add prefixes and suffixes with key values such as F1
F2?.......................................................................................................................................5
Q: Can we use c #, c ++, VB ... program for the barcode readers?..................................5
Q: Does the barcode reader can decode inverse bar code (usually bar code printed
with white background and the bar code itself is black, but a inverse bar code with
white color itself and with black background)?............................................................. 5
Q: Does the reader can be controlled by using command?............................................5
Q: Can we control the scanning by host to make the reader only work when we
need it work?......................................................................................................................5
Q: Do you provide API ?.....................................................................................................6
Q: What’s MOQ?................................................................................................................. 6
Q: What’s lead-time for your barcode reader?................................................................6

FQA For RTscan’s Barcode Reader
2
Q: Does the barcode reader support image capture?
Yes, RT203/ RT830A/ RT830B support image capture
Q: Does the barcode reader support Aztec code or Maxi code?
Yes. The RT203/ RT830A/ RT830B support Aztec code or Maxi code, QR code, PDF417 code
and others mainstream 1D and 2D bar codes
Q: Does the RT203 / RT830B barcode reader can be connected directly via
TTL-RS232? What kinds of interface are supported?
A: Yes. The barcode reader itself with 12 pins TTL-RS232 interface, but if you buy the
development kit board together, the interface can be USB-HID, USB Virtual COM, or DB9
RS232.
Q: What is the difference between USB Virtual-COM and USB-HID?
A:USB HID interface is keyboard simulation interface, no need driver install, it’s
plug-and-play. The decoded data can be output directly to any document just like you type
and input by keyboard. For USB-Virtual COM interface, a driver is required, and only
software that support serial signal transmit can communicate with the barcode reader, and
the software’s parameters (COM port number, baud rate…) also must be properly configured.
If for test purpose, you can ask RTscan sales representatives for COM tool test software.
Q: What is the best reading distance of the barcode reader?
A: Please refer to the product integration guide. For RT203, the the “best distance” the better
distance is around 10cm-25cm, and RT830A/RT830B/ RT860 is near barcode reader which
support 0mm to around 200mm(this would be different for different type and size bar code).
Q: Does the barcode reader support sense / presentation mode?
A: Yes, All of RTscan barcode readers support sense / presentation mode, continuous mode
and command trigger mode.
Q: Does the barcode reader support to read multiple bar codes one time
simultaneously?
A: Only our RT200 /RT220 series barcode readers support this function.

FQA For RTscan’s Barcode Reader
3
Q: How to fix the barcode reader RT203/ RT830B in my terminal?
A: The barcode readers with fix screw holes, we provide structure introduction in our
integration guide, please refer to the document.
Q: Can the barcode reader work on Linux, Android system?
1. Generally, if you use TTL interface, the barcode reader can work with any OS, because the
only thing you need to do is make your system communicate with the reader via the 12pins.
2. If your system with DB9 RS232 or USB-HID interface, then you can buy our development
kit board together which with DB9 RS232 or USB-HID interface, and then the barcode reader
can work with Linux or Android because DB9 RS232 or USB-HID interface no need to install
driver.
3. If you need the barcode reader work with USB virtual COM port, we do not ensure the
reader work with Linux or Android, and you can test it for compatibility because the reader’s
driver is not optimized for Linux and Android.
Q: How to improve the scanning speed?
A:
1. Setup the time interval between the same or different bar codes to be shorter, you can also
consider to setup it to continuous mode.
2. Adjust the sensitivity of the reader according to the ambient light. If it’s dark, reduce the
sensitivity and if bright enough, increase the sensitivity.
3. Disable all of bar codes that you don’t need to scan during usage.
Q: The barcode reader read bar code but without any output
A:
If you test the reader with USB HID development kit board, please use the reader to scan
setting code: “USB HID-KBW”
If you test the reader with USB virtual Com kit board or DB9 RT232 kit board:
1. Check if you chose the wrong COM port (from device manager, check which COM port is
connected with the bar code reader)
2. Check if you chose the wrong baud rate (the baud rate must be the same with the reader’s
baud rate, you can change the reader’s baud rate easily by scanning setting codes)
Q: Bar codes cannot be read.
A:
1. Find out the bar code type and verify that the bar code type is enabled. If the bar code
parameters include check digit verification, select the Disable option.

FQA For RTscan’s Barcode Reader
4
2. If you do not know the bar code type, setup to enable all symbologies.
3. If they are inverse bar codes (white code images on a dark background), enable the Video
Reverse feature.
4. Move the barcode reader near or far to the bar code and try again.
Q: Incorrect output.
A:
1. If this problem happens to all bar codes and additional characters appear before/after bar
code data, disable all prefix/suffix.
2. If this problem only happens to some bar codes and matches one of the following
situations:
a) Incomplete bar code data: Enable the check digit verification.
b) Both the first and last characters are asterisks: Disable the transmission of start/stop
characters of
Code 39.
Q: Can the barcode reader connect to the Micro-controller?
A. Generally yes, you can connect the barcode reader with micro-controller via the TTL
interface, and remember connect the TX of the reader to the RX of the micro-controller, and
RX of the reader to the TX of the micro-controller.
Q: Can the barcode reader read more than one setup codes one time?
A. Not support, but you can do multiple setup by serial commands, please refer to the serial
command user guide.
Q: Can the reader work in a dark environment?
A: Yes, these barcode readers are equipped a high level flash LEDs light to make them can
work in darkness.
Q: Can the reader connect to Wiegand?
A: The reader itself no, but via a Wiegand adapter / converter, you can do that, RTscan
provide wiegand adapter, please ask our sales people for more information.

FQA For RTscan’s Barcode Reader
5
Q: Does the barcode reader can decode a bar code from smart phone screen?
How about the performance of reading from phone screen?
A: Yes, it scan decode bar codes either from phone screen/ iPad screen / computer screen or
from paper.
All of RTscan’s 2d barcode readers can read mainstream 1D and 2D bar code from phone
screen sensitively.
Q: Do you provide support for software development?
A: Currently we only provide hardware related support, for example: integration of the
barcode reader, configuration/ programming of the reader, but thing like software coding, we
do not support at the moment.
Q: Can the output of the reader add prefixes and suffixes with key values
such as F1 F2?
A. Yes, please refer to the user guide that with detailed introduction about prefix and suffix,
and if you need special prefix like F1 F2 function key, please contact RTscan representatives
and we can provide extra detailed setup guide.
Q: Can we use c #, c ++, VB ... program for the barcode readers?
A. For a barcode reader, there is no software development key because it’s standard USB
signal, standard TTL UART signal or standard RS232 serial signal, you only need to program
your software to communicate with these standard USB/TTL/RS232 interface, so basically,
you can use whatever language, c# or VB or others.
Q: Does the barcode reader can decode inverse bar code (usually bar code
printed with white background and the bar code itself is black, but a
inverse bar code with white color itself and with black background)?
A: Yes, scan the inverse setting code from the user guide to turn on the inverse bar code
scanning.
Q: Does the reader can be controlled by using command?
A: Yes, but it only supports for USB-COM, RS232, and TTL interfaces. USB-HID interface do
not support this.
Q: Can we control the scanning by host to make the reader only work when
we need it work?
A: Yes,

FQA For RTscan’s Barcode Reader
6
1. Most often, the sense mode (only active when the reader detect a motion) would meet
your requirement.
2. The reader supports command control, you can design a button in your system interface
and “link” the button to the trigger command, this way, only when people press the
button, the barcode reader active and read.
Q: Do you provide API ?
A: RTscan provides powerful/ detailed user guide and integration/ programming command
guide, these document can help you for most of technical issue, please ask RTscan
representative if you do not have them.
Q: What’s MOQ?
A: Basically, there is no MOQ limited for the first and second time order, but for the third or
more orders, we would require MOQ like 20-50units according to different models. And the
price will be differ for different order volume.
Q: What’s lead-time for your barcode reader?
A: Usually within 3 days after payment receive. And usually around 10 days for bulk volume
order.
For more information, please feel free to email us: [e-mail]
Copyright © RTscan Technology Limited. All Rights Reserved, Feb. 2018