Pre-Installation Check
6-2 Chapter 6: Verification 98-158751-C
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
both CSDU and MCHPA tray
connectors
Grounding stud Check that the grounding stud on
both CSDU and MCHPA are
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)
Check AC power on MCHPA tray
connector
BP1: +115 VAC Line (Hot)
BP7: +115 VAC Neutral (Cold)
RF cable losses Measure and note the cable loss for
all coaxial cables. See section 4.4.4.
Software version Check the software version of the
CSDU and the MCHPA.
Table 6-1: Check Sheet: Installation Check before inserting LRUs.
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