Meaning of fault code: EXTERNAL FAULT CODES CLASS 2B

OSS and NOC
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Hello Ericsson Experts.

Can anyone assist me with the interpretation of this fault code?

EXTERNAL FAULT CODES CLASS 2B 4 5

EXTERNAL FAULT CODES CLASS
EXTERNAL FAULT CODES CLASS746×202 27.7 KB

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2B: External Fault Codes

4: Critical External Fault Codes.

5: Major External Fault Codes and all prioritizied about Power Suplly issues or power cable issues.