Avidyne IFD540 Installation Manual page 64

6.1.6.6 Annunciators Electrical Output
Description
VLOC Annunciate
GPS Annunciate
Waypoint Annunciate
Terminal Annunciate
Approach Annunciate
Message Annunciate
OBS Annunciate
Auto Annunciate
Integrity Annunciate
LNAV GPS Select
ILS/GPS Approach
All inputs sink up to 500 mA when activated.
6.1.6.7 Switch Inputs
Description
OBS Mode Select
CDI Source Select
The inputs are considered active if voltage to ground <1.9V or resistance to ground <375
These inputs are considered inactive if voltage to ground is 11-33 VDC.
6.1.6.8 Time Mark Out
Description
Time Mark Out
Outputs a 1ms ± 1 s wide pulse once every 1.0 Second ± 2 ms. Output sources 1 mA at >3.8 V
and sinking 1 mA at less than 0.4 V.
600-00299-000
Connector
P1001
P1001
P1001
P1001
P1001
P1001
P1001
P1001
P1001
P1001
P1001
Table 34: Annunciator Output
Connector
P1001
P1001
Table 35: Switch Inputs
Connector
P1001
Table 36: Time Mark Output
Page 64 of 198
IFD5XX Installation Manual
Pin Signal Type
1 Output
2 Output
3 Output
4 Output
5 Output
6 Output
7 Output
8 Output
9 Output
13 Output
14 Output
Pin Signal Type
71 Input
73 Input
Pin Signal Type
71 Input
Revision: 02
.