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 F.2
Revision 1 Jan 19, 2009
(b) The Data Loader Input Discrete, at pin 12 of connector J1, is grounded;
(c) A valid database media is inserted in the DLU.
1.3 Compatible data loaders
The GLSSU is designed to operate with an ARINC 615 or an RS232 DLU. However, the use of the RS-
232 DLU is restricted to the factory use only. Only the recommended ARINC 615 DLUs are described
below.
One of the recommended Portable Data Loader (PDL) is from Demo Systems Inc.:
Part No. 30100, Software Version 4.5.
DEMO SYSTEMS DIVISION
379 SCIENCE DRIVE
MOORPARK, CA 93021-1792
This device operates from either 115 VAC or 28 VDC. At turn-on, its display will remain blank for 7
seconds, while the unit performs initialization tests. The display will then read: "TESTING, Please Wait"
for 2 seconds. After completing all tests at turn-on, the data loader may display "HEATING PLEASE
WAIT", if the temperature is less than 0 degrees Celsius. The PDL heating mode may also be
indicated by a blinking "READY" LED. This heating period could last up to 2 minutes.
Another recommended ARINC 615 DLU is from Qualair Equipment and Engineering:
ARINC 615-3 Portable Data Loader Part No. 11615-01; or
ARINC 615-3 Portable Data Loader with internal Mass Storage Device (MSD) Part No. 11615-20.
QUALAIR EQUIPMENT AND ENGINEERING
2100 196TH ST. SW, SUITE 125
LYNNWOOD, WA 98036
1.4 Data Loading process
First, check the validity and status of the two database copies using the Controller Unit.
Ensure the aircraft is on the ground (reported in label 355 bit 28 = 0 - Test Allowed). Ensure that the
GLSSU is powered-up.
CAUTION: If other equipments are connected to the GLSSU Data Loader input bus in this
installation, they must be powered-down prior to connecting and operating the DLU in
order to prevent interference.
Remove any media inserted in the DLU. Connect the DLU to the ARINC 429 "Data Loader Input" bus
at J1-4 & J1-15 on the GLSSU, using for example a DLU connector installed permanently in the aircraft
for this purpose.
Ground the Data Loader Input Discrete line of the GLSSU, at pin 12 of the main aircraft connector J1,
using for example a switch or a jumper plug installed in the aircraft for this purpose. This action enables
the data loading process.
Power-up the DLU. At power-up, the DLU will perform its selftests and, if necessary, will activate its
heater. Once ready, the DLU will look for the presence of a floppy disc, and if not found it will display
"DISK NOT INSERTED".
The document reference is online, please check the correspondence between the online documentation and the printed version.
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