Page 4 Of; Main Input Configuration; Main Lighting Configuration - Avidyne IFD540 Installation Manual

7.5.5 Main Input Configuration (Page 4 of 10)
The Main Input Page displays information received from ARINC 429, RS-232, and other
electrical inputs. This page is helpful during troubleshooting of the IFD5XX system.
7.5.6 Main Lighting Configuration (Page 5 of 10)
The source of the lighting for the IFD5XX can be the bezel photocell sensor or the dimming
bus. 28VDC, 14VDC, 5VDC and 5VAC dimming buses are all supported and are
automatically detected by the IFD5XX.
Photo Response Time
Sets the speed at which the brightness changes when photocell is selected as the lighting
source. Both the Bezel and Display fields have a range of 1 to 5, and the factory default is 3.
Photo Slope
The Photo Slope sets the sensitivity of the display/bezel to changes in the input when the
dimming source is the IFD5XX photocell. This field has a range of 15 to 100, and the factory
default is 80.
Photo Minimum
The Photo Minimum sets the minimum brightness when the dimming source is the photocell.
Both the Bezel and Display fields have a range of 1 to 50, and the factory default is 1.
600-00299-000
Figure 14: Main Lighting Configuration Page
Page 89 of 198
IFD5XX Installation Manual
Revision: 02