Pre-Installation Check
6-2 Chapter 6: Verification 98-145168-A
6.2 Pre-Installation Check
It is recommended to check the installation before inserting LRUs. The following list
provides some of the most important issues, but other additional checks may be relevant
for the specific installation.
After a successful check of the installation, you must load the secure ORT and the user ORT
with a data loader. For further information, refer to Setup of the system on page 5-1.
Item Description of Check
Reference
Section
Value/
Comment
Mounting trays Ensure service/maintenance
accessibility.
Coding of tray
connectors
Check orientation of coding pins in
the CSDU tray connector
Grounding stud Check that the grounding stud on
the CSDU is connected correctly to
the aircraft chassis.
Circuit breaker
rating
Check the circuit breaker.
AC power Check AC power on CSDU tray
connector
BP5: +115 VAC Line (Hot)
BP1: +115 VAC Neutral (Cold)
RF cable losses Measure and note the cable loss
from CSDU to the antenna
RF cable DC
resistance
Measure and note the DC resistance
of the cable from CSDU to the
antenna (as per section 4.2.4)
Software version Check the software version of the
CSDU.
Table 6-1: Check Sheet: Installation Check before inserting LRUs.
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