Honeywell CAS-100 Maintenance Manual page 109

Table 16. IVA-81A/D TA/VSI and IVA-81B RA/VSI Inputs and Outputs (cont)
Source Or
Destination
VERTICAL RATE SOURCE RELATED I/O (cont)
Aircraft Digital ARINC 575
(Label 212) Rate Source
Aircraft Digital ARINC 419
(Label 212) Rate Source
Vertical Speed Source
ALTITUDE RATE OUTPUT
IVA-81A/D or IVA-81B
CONFIGURATION AND SOURCE SELECT STRAPPING RELATED I/O
Nine Configuration Straps
and Two Source Select
Straps on TA/VSI or
RA/VSI Rear Connector
POWER RELATED I/O
Own Aircraft Power
Supplies
LAMP TEST
Lamp Test Source
Own Aircraft Dimmer Bus
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MAINTENANCE MANUAL
CAS-100 COLLISION AVOIDANCE SYSTEM
I/O Signal
Name and Type
Altitude Rate Data. Digital ARINC
575. Low-speed ARINC 419
Altitude Rate Data. Low-speed
digital vertical speed, ARINC 419.
Vertical Speed Valid Discrete
Digital Altitude Rate Output
CS0-CS8 Configuration Straps
and Source Select No. 1 and No.
2 Straps. Eleven discrete input.
115 V 400 Hz or 28 V dc
Lamp Test Discrete
5 V ac or dc or 28 V dc
General
Description
Same as above.
Nonstandard ARINC 419 interface used
with a general aircraft that has an air
data computer which transmits ARINC
419 Label 212 at an internal rate slower
than the maximum of 67 milli-seconds.
Supplies failure status from set analog
vertical rate source unit to the VSI.
Buffered altitude rate output for use by
remote indicators.
Show the type of vertical rate source
input to the TA/VSI, RA/VSI, and other
system particulars.
Supplies the primary power to TA/VSI
and RA/VSI.
IVA-81A/D turns on LCD display.
IVA-81B turns on TCAS eyebrow lights.
Controls panel background lighting on
TA/VSI and RA/VSI.
34-45-47
Page 80
1 Dec 2003