Which document is used to isolate the BN system based on Status Monitor operations and operator-observed faults?

• A. Battalion Software User Guide
• B. 9-1425-2602-12-1
• C. BN System Fault Isolation Manual
• D. Status Monitor Reference Guide

Answer: (B)

Focus on the structured procedure used to map status monitor signals and operator-reported faults to specific BN faults. When you’re isolating a BN system issue, you follow a formal fault isolation process that translates what you see in the status monitor and what the operator reports into concrete root-cause steps and corrective actions. The document identified by the numeric code 9-1425-2602-12-1 is the official reference that contains those step-by-step isolation procedures, including how to interpret status monitor events, how to classify faults, and which checks to perform in sequence. It provides the standardized workflow you rely on in the field to pinpoint the fault accurately and consistently. Other documents deal with related topics—how to use the status monitor, or general BN software usage—but they don’t unitize the complete, procedure-driven fault isolation process that this numeric-code document offers.