Honeywell MK VI - Manual (Page 310)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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7.1.3 Terrain Display Outputs
The following ARINC 429 outputs support the Terrain Display function.
7.1.3.1 Displayed Range (050)
Data: Discrete Label (Octal): 050 Transmit Interval: 200 msec ± 10%
BIT NO DEFINITION
11 – 14 TERRAIN DISPLAY RANGE #1 (0.5 to 2000 NM format)
15 – 18 TERRAIN DISPLAY RANGE #2 (0.5 to 2000 NM format)
19 - 29 UNDEFINED
NOTE: Bits contain left and right side Terrain Display Ranges (0.5 to 2000 NM, format as follows)
DISPLAY RANGE BIT ASSIGNMENTS
(Bits 14-11) & (Bits 18-15) DEFINITION (Bits 14-11) & (Bits 18-15) DEFINITION
0000 0.5 NM 1000 150 NM
0001 1.0 NM 1001 200 NM
0010 2.5 NM 1010 300 NM
0011 5.0 NM 1011 500 NM
0100 10 NM 1100 1000 NM
0101 25 NM 1101 2000 NM
0110 50 NM 1110 600 NM
0111 100 NM 1111 1200 NM
7.1.3.2 Terrain Display Status Word (051)
Data: Discrete Label (Octal): 051 Transmit Interval: 200 msec ± 10%
BIT NO DEFINITION
11 POP UP BOOLEAN #1
12 POP UP BOOLEAN #2
13 TERRAIN DISPLAY VALID (cleared when TERRAIN AWARENESS NOT AVAILABLE or TERRAIN AWARENESS INOP are true)
14 SPARE
15 SPARE
16 FLAP OVERRIDE (Only from ARINC 429 FWC discrete word label 171, not from discrete switch)
17 TERRAIN AWARENESS & TCF INHIBIT
18 SPARE
19 SPARE
20 SPARE
21 SPARE
22 SPARE
23 SPARE
24 SPARE
25 SPARE
26 TERRAIN DISPLAY CAUTION
27 TERRAIN DISPLAY WARNING
28 STEEP APPROACH ACTIVATED
29 SPARE