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 6
Revision 1 Jan 19, 2009
The GLSSU includes also an APD File defining 1 to 16 different APD Configurations.
The GLSSU can be installed in a non temperature-controlled or unpressurized zones in either fixed or
rotary wing aircraft types. Physically, the GLSSU retains the "square brick" form factor inherited from
the legacy ARINC-743A GPS receiver characteristic as per Figure 1, including the navigation aircraft
connector J1. For easy retrofit in existing aircrafts and by means of the proper APD Configuration, the
connector J1 can be made compatible with the equivalent connector in ARINC-743A, including for the
ARINC-429 input/output data formats and protocols (refer to Section I 6 F). The coaxial connector J2
accepts the RF signals from the remote antenna; it also supplies DC power to the antenna preamplifier.
An approach aircraft connector J3 accommodates the many additional data busses required for
interconnecting the HIS with the ILS/DME instruments and with the flight instruments in the cockpit, plus
extra data busses and interfaces reserved for future growth; its configuration is set by the selected APD
Configuration. When unused, J3 must be protected physically by the metal cap attached to the GLSSU
frame.
3. RELATED PUBLICATIONS
Not applicable.
4. EQUIPMENT IDENTIFICATION
The equipment nomenclature, common name and CMC Electronics Inc. part numbers for the GLSSU are
listed in Figure 2.
EQUIPMENT NOMENCLATURE COMMON NAME PART NUMBER
100-601967-100
OFP CID 169-615116-001
BOOT (BL) CID 169-614377-200
BOOT (BR) CID 169-614377-300
CMA-5024
GLSSU
APD CID (16) 169-615462-000
Figure 2. Equipment Identification
Throughout this manual, the units are referred to by their common name. The part number and modification
status are identified on the nameplate.. The number in parenthesis after the “APD CID” indicates the
number of APD configurations defined by the specified CID part number. A software label identifies the
software CID numbers of the Operational Flight Software and the Bootstrap Loader. The nameplate and
label are affixed on the GLSSU as shown by the outline drawing in section II 5 A.
5. EQUIPMENT LIMITATIONS
The GLSSU must be installed with a TSO-C190 (RTCA/DO-301) compliant antenna in order to comply with
the TSO requirements of SBAS LNAV/VNAV, LP and LPV approach types as defined in RTCA/DO-229D. If
the aircraft operation is limited to class 1 as defined in section I.2.A, use of an RTCA/DO-228 Change 1
compliant active antenna is acceptable per RTCA/DO-229D section 2.1.1.10 note 1.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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