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FAQ

  • Q: How can my Unitech Mobile Computer communicate with my PC?
  • You will need to use a program called “Active Sync” available free from Microsoft.

    a. Install The latest version of Active Sync onto your PC available at:
        http://search.microsoft.com/search/results.aspx?View=en-us&p=1&st=b&qu=activesync&na=54
    b. Unplug Com Cable from Device then reconnect, Active Sync should automatically connect to your computer
    c. If you cannot connect to ActiveSyc automatically- while you’re connected, on the device under Window’srepllog.exe will force a connection to PC.

    note: this FAQ applies to Unitech mobile computers only


  • Q: What is EPC?
  • The concept of EPC was originally proposed by the Auto-ID Laboratory (it became EPCglobal after transformation from an R&D organization into a standards promotion organization). EPC is the abbreviation of Electronic Product Code. It can be the standard code of any object and is suitable for use on RFID labels. Combined with the internet and information technology this system connects objects to computers as a network to promote mutual communication.

    EPC technology starts with the storing of the EPC code in the label. As the object moves, the code reader on the transportation path emits radio waves and senses the label on the object. The back-end system then starts the data inquiry, storage and retrieval. The entire operation relies on the complete integration of the system. The transmitted information about the object includes not only basic data such as the appearance, weight, material and package, but also information such as manufacture, upstream raw material and even the distribution of the final products and a description of the activity path and production process.

    EPCglobal Network uses technologies such as EPC code, Radio Frequency Identification (RFID) and the information network to establish a global standard RFID infrastructure for the automation, tracking and tracing of supply chains and improving the visible information for object exchange with improved efficiency and information accuracy. Also, the application of the EPCglobal Network technology allows trade partners to accelerate the handling process of purchase orders, provide rapid response to customer's requirements as well as improve efficiency during the receipt, calculation, categorization and transportation of objects.

  • Q: How can I read the dust-proof and water-proof specifications?
  • The IP code (International Protection Code) for the water-proof and dust-proof construction of electronic equipment is decided by the international organization EIEMA. The standard EN60529 specifies the unified global requirements for the water-proof and dust-proof function of products.

    Due to the different design targets and application environments, there are different protection classes, for example: In "IP54", the first number defines the dust-proof level (0-8); level 5 in this example. The second number defines the water-proof level (0-6); level 4 in this example.

    The first code represents the dust-proof level

    (a) 0: No protection.
    (b) 1: Excludes objects larger than 50mm.
    (c) 2: Excludes objects larger than 12.5mm.
    (d) 3: Excludes objects larger than 2.5mm.
    (e) 4: Excludes objects larger than 1mm.
    (f) 5: Dust cannot enter.
    (g) 6: Completely sealed.

    The second code represents the water-proof level
    (a) 0: No protection.
    (b) 1: Water drops from the front are tolerated.
    (c) 2: Water drops within ±15 degrees from the front are tolerated.
    (d) 3: Water drops within ±60 degrees from the front are tolerated.
    (e) 4: Water splashes from each side are tolerated.
    (f) 5: Low-pressure water splashes from each side are tolerable.
    (g) 6: High-pressure water splashes from each side are tolerated.
    (h) 7: Immersion 15cm-1m under water is tolerated.
    (i) 8: Immersion in pressurized water is tolerated.

  • Q: What is "compliance labeling"?
  • Many companies will ask their suppliers and other partners to add barcodes or RFID labels so as to categorize the received materials and manage stock to facilitate the operation of automatic systems. The labeling that complies with these requirements is called "compliance labeling" because the transportation company needs it to comply with the regulations or meet the requirements. The design, contents, barcode system, printing quality of the compliance labeling should follow a strict format.

  • Q: How can I connect the barcode printer to a PC?
  • The barcode printer is equipped with many user interfaces for quick integration with the various host computer systems. Ethernet, USB, parallel, serial, Twinax, and coaxial cable interfaces are all supported. The barcode printers also provide 802.11b and Bluetooth wireless connection capability. The management tool allows the user to perform operations such as remote control, configuration setting, and also to troubleshoot the connected printer.

  • Q: How do barcode scanners recognize and read symbols?
  • The barcode scanner has an automatic decoding and recognition capability. This allows the barcode reader to map the bars and spacing into the correct characters and avoid read errors. The accuracy of the recognition is very high with an error rate of only one in more than 3 million characters.

  • Q: Can a barcode scanner read more than one type of symbol system?
  • Yes. The barcode readers usually support many commonly used systems. Typically, more barcode scanners can recognize 1-D barcodes than 2-D ones. However, some of them can support several commonly used 2-D formats. Barcode scanners models from different manufactures support a variety of Barcode systems.

  • Q: How many data items can a barcode contain?
  • Although the 2-D code can be used to encode many characters, if necessary, the length can be changed to encode fewer characters. The amount of data in a variable-length barcode is limited by the number of symbols. The number of these depends on the capability of the barcode reader.

    For example: The standard U.P.C./EAN symbol can be used to encode a 14-digit number. Many barcodes for warehouses, logistics, manufacturing and storage control require a series of numbers with similar lengths of digits, so many commonly used systems can easily encode concise symbols.

  • Q: Which type of barcode should I use?
  • The wide variety of barcodes allows you to find a suitable system to meet your requirements. If you want to make sure which barcode type is the most suitable for you, the key criteria are the amount of data to be encoded, the space available to print the barcodes and the data type to be encoded.

  • Q: How many barcode types are available now?
  • Nowadays, there are hundreds of available barcode symbol systems. However, only a few are widely used. Each of these ‘symbologies’ has unique barcode patterns, spacing modes, and data encoding rules. There are two basic types of barcodes: 1-D and 2-D barcodes.

    1) A 1-D barcode is a one-dimensional line-type code with the data arranged in bars with spaces between them. The U.P.C./EAN symbol system is a typical 1-D barcode.

    2) 2-D barcodes use another dimension to encode the data. There are two main types of 2-D barcodes: Stack and matrix type symbol systems. The stack type consists of many one dimensional symbols stacked over each other. The matrix type consists of blocks or lines formed by squares and geometric patterns. In addition, there are also hybrid type 2-D symbol systems and other variations.

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