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Test Result Possible Cause of Result
FAIL or PASS* • General rule: troubleshoot NEXT problems rst. This
normally corrects any ACR-F (ELFEXT) problems
• Service loops with many tightly coiled windings
ACR-F and PS ACR-F
(older names: ELFEXT and PSELFEXT)
Test Result Possible Cause of Result
FAIL or PASS* • Excessive cable length
• Poor connection due to oxidized contacts
• Poor connection due to marginally attached conductors
• Thinner gauge cable
• Incorrect patch cord type
Resistance
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