Raytheon 133-560 NG011, Руководство оператора и по обслуживанию, Страница: 36 / 63

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3969.DOC010102 2-20 Edition: August 2014
Repeater Compass
133-560
2.8.2 Central Dimming
The central dimming function is included since software version
133-560.P0003 E00.04.
2.8.2.1 Central Dimming via NMEA
The Repeater Compass is prepared to accept a DDC (device dimming control)
telegram according to IEC 61162-1 in order to adjust the brightness remotely.
Please note that the dimming and the heading telegram have to be input via the same
serial interface.
It can be configured if the dimming should follow the DDC telegram or not (factory
setting: “Dimming Group 0”). This can be done via the Configuration Tool AS. The
following steps are required:

Connect the Repeater Compass to the CAN Bus

Select the CAN Bus interface as described in chapter 2.8

Connect the Configuration Tool AS

Start the “System Identification”

Choose the respective device from the pull down menu

“Request” the configuration data

“Open” the configuration window

Select “Dimming Group 0” if the Repeater Compass should not follow the DDC
telegram (= local dimming)

Select “Dimming Group 1” if the Repeater Compass should follow the DDC
telegram (central dimming)

Save and close the Configuration Tool AS

Connect the Repeater Compass to NMEA

Configure the Repeater Compass NMEA/course bus (SCI) interface