INSTALLATION MANUAL
CMA-5024 GLSSU
This document includes Proprietary Information and shall not be reproduced or communicated to third party
without prior written permission by CMC Electronics Inc.
Page C.4
November 21, 2008
ARINC BIT NOMENCLATURE SETTING
10 - 9 SDI Not Used = 00
Unit 1 = 01
Unit 2 = 10
Unit 3 = 11
8-1 Octal Label 035
(a) The frequency is as per the Look-Alike DME Frequency APD when the DME Function matches the
Left/Right/Center Look-Alike DME Channel APD (selected by the GLSSU SDI setting); otherwise it
is set to the corresponding input label contents.
(b) The Audio Identification bit is set to zero when the DME Function matches the Left/Right/Center
Look-Alike DME Channel APD (selected by the GLSSU SDI setting); otherwise it is set to the
corresponding input label contents.
(c) The Display bit is set to one when the DME Function matches the Left/Right/Center Look-Alike DME
Channel APD (selected by the GLSSU SDI setting); otherwise it is set to zero.
(d) The Device bits are set to 'ILS' when the DME Function matches the Left/Right/Center Look-Alike
DME Channel APD (selected by the GLSSU SDI setting); otherwise it is set to the corresponding
input label contents.
(e) The DME Function code is set to the corresponding input label contents when available; otherwise it
is set according to the Left/Right/Center Look-Alike DME Channel APD (selected by the GLSSU
SDI setting).
1.7 Label 040 - Set Altitude – Input
ARINC BIT DESCRIPTION SETTING
32 Parity Odd
31-30 Sign Status Matrix (SSM) Positive = 00
No Computed Data = 01
Functional Test = 10
Negative = 11
29 - 27 Tens of Thousands (Feet) 0 - 7
26 - 23 Thousands (Feet) 0 - 9
22 - 19 Hundreds (Feet) 0 - 9
18 - 15 Tens (Feet) 0 - 9
14 - 11 Units (Feet) 0 - 9
10 - 9 Source/Destination Identifier Not Used = 00
Unit 1 = 01
Unit 2 = 10
Unit 3 = 11
Bit 8-1 Octal Label 040
The document reference is online, please check the correspondence between the online documentation and the printed version.
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