User Manual

5500-62017.A.00
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to other documents or used or disclosed to others for manufacturing or any other purposes except as specifically authorized in writing by Cubic.
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4.1.1 Mounting
The mounting is designed to withstand the shock and vibration requirements in the bus environment.
A minimum of four M3 threaded mounting holes are required on the back cover of the DCU2 for
mounting the assembly to the existing adjustable mounting bracket. The mounting holes are able to
accommodate up to 6mm (0.236-in) length screws. The mounting allows some degree of 3-D
adjustment such that drivers of various heights can view and operate the DCU2 In addition, the
mounting is adjustable in order to move the LCD screen away from direct sunlight. Different mounting
fixtures are used to mount the DCU2 to either the vehicle dashboard or to an existing mounting post in
the bus. Site surveys of customer buses are typically used to determine the mounting approach.
4.1.1.1 Physical Security
The mounting of the DCU2 can be secured in place by security button head screws or accessories as
a measure of theft prevention.
An additional in back panel design that allows for quick removal/install will be undertaken by Cubic.
4.2 DISPLAY
• The display is sunlight readable transflective 4.7-in diagonal color graphics LCD (resulting
in a useable size of approximately 4-in × 3-in). The display provides full graphics screen
capability and the resolution of the LCD is ¼ VGA with a 320 × 240 dot matrix.
• The screen is backlit with Light Emitting Diode (LED) and can be viewed across all normal
lighting conditions, including day and night operation. The display has variable brightness
backlighting and contrast level under software control capable of 128 levels of brightness.
4.3 KEYPAD
The keypad provides for the following 33 keys (see Figure 2):
• Twelve-key numeric keypad: 0 to 9, *, and # keys.
• Four direction keys: Left, Right, Up and Down arrow keys for menu navigation.
• One Large “Return Symbol” (
↵ ) key.
• Twelve soft keys (1×4’s) located on the left, right, and bottom sides of the display, with
arrow symbols.
• Four Function keys (1×4) located below the bottom soft keys. A replaceable polycarbonate
backlit custom legend shall be located around the bottom set of function keys. The default
custom legend shall have the following graphics: TRIP, MENU, CTRL and GPS (or RTT,
PRTT, HOME, and T/A)
• The keys are designed to be fully water resistant. Graphics on keys are wear resistant and
not rub off under normal use.
The ‘color’ on the DCU2 membrane keys shall last for 1,000,000 key presses without more than 10%
degradation.
The DCU2 membrane keys are made of a material resistant to peeling.
• All keys shall be rated for a minimum of 1 million keystrokes. The reliability of the keypad
shall meet the overall reliability of the DCU2.
• All keys and legends shall be LED backlit with the ability to turn the backlight on or off
using software control with 16 levels of brightness.