when pressing the 7, 9 and power keys simultaneously, the system will enter the system mode with which provides the following services:

    1. memory

    size information includes the sram (data memory) size and flash (program memory) size in kilobytes.

    initialize to initialize the data memory (ram). note that the contents of the data space will be wiped out after memory initialization.

    test to test the data memory. for 256 kb sram, it takes about 15 seconds to finish the test. note that the contents of the data space will be wiped out too after memory test.

    2. setting

    clock to set new date and time.

    backlit to set the intensity of lcd backlight and the duration for staying on. default: high intensity, the lights go off after 20 seconds.

    speed to set cpu running speed. there are five speeds available:

    full speed, 1/2 speed, 1/4 speed, 1/8 speed and 1/16 speed; which need about 39ma, 22ma, 12ma, 7ma and 5ma, respectively, during normal operation (without scanning or data transmission). if high-speed operation is not required, selecting low cpu speed will save battery power.

    default: full speed

    auto off set time threshold for auto poweroff when no operation is taking place during that specified period. if this value is set to zero, this function will be disabled.

    default: 10 minutes

    power on there are two possible selections: program resume, which starts from the program being used during the last session before the last power-off; and program restart, which starts with a new program.

    default: program resume

    3. reader

    reading test to test the reading performance of the scanner. following are the default enabled symbologies:

    code 39

    industrial 25

    interleave 25

    codabar

    code 93

    code 128

    upce

    upce with addon 2

    upce with addon 5

    ean8

    ean8 with addon 2

    ean8 with addon 5

    ean13

    ean13 with addon 2

    ean13 with addon 5

    other symbologies, must be enabled through programming.

    4. battery

    main show voltage of the main battery power. if the main battery voltage is low, a battery icon (power-low indicator) will be shown on the lcd screen. the available power will be less than 25% of fresh batteries, the terminal will continue to work normally for a short period of time.

    backup show voltage of the backup battery.

    5. test

    buzzer to test the buzzer with different frequency/duration. press enter key to start / stop the test.

    lcd & led to test lcd display and led indicator. press enter key to start /stop the test.

    kbd to test the rubber keys.

    press a key and the result will be shown on the lcd display. note that the fn key should be used in conjunction with numeral keys.

    6. download

    rs-232 to download the user program via rs-232 port. the transmission speed can be up to 115200 bps.

    docking to download the user program via communication cradle (charger). the transmission speed can be up to 115200 bps.

    ir to download the user program via high speed ir transceiver. the transmission speed can be up to 115200 bps.

    irda to download the user program via standard irda. the transmission speed can be up to 115200 bps.

    7. version

    version info to show version information, including hardware version, firmware version, serial number and manufacturing date.