NCR NCR 5992 Digitizer Calibration, Screen Contrast Adjustment, EIA-485 Link Address, EIA-232

Operational Modes 4-19

Digitizer Calibration

Calibration of the digitizer is done at the factory and should never require readjustment. If you experience a digitizer tracking problem, contact an NCR service representative prior to attempting any adjustments.

Screen Contrast Adjustment

When you enter this mode, the screen displays a light and dark checkerboard pattern. To lighten the screen, drag the stylus from the left to the right. To darken the screen, drag the stylus from the right to the left.

Note: It is possible to adjust the screen contrast so that the menu options are not visible. It is then very difficult to select the option to adjust it properly. If this occurs, momentarily unplug the power module from the electrical power outlet and then reconnect it to initiate the self-test diagnostics. Then, hold the stylus tip on the screen for four seconds to establish a default contrast value.

EIA-485 Link Address

If your 5992 utilizes an EIA-485 interface with an IBM-468x host, you must set the link address at installation. If your 5992 utilizes and EIA- 485 2-wire multidrop link interface, you must set the link at installation.

EIA-232

If not manually set, the RS-232 communication baud rate will automatically be set via the first communications message following the unit power cycle. The highest rate that can be detected in autobaud mode is 19.2Kbps. If 38.4Kbps is required, it must be set by selecting the 38.4Kbps option from the menu.