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, extended memory size (smartmedia card) 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 the test, then press any key to stop the test.

    lcd & led

    to test lcd display and led indicator. press enter key to start the test, then press any key to stop the test.

    kbd

    to test the rubber keys.

    press a key and the result will be shown on the lcd display.

    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.