How do I decode an EST3 trouble address like '03030681'?

Edwards ESTEST3Mar 23, 20261 views
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To decode the address 03030681, use the standard PPCCDDDD format where PP is the cabinet, CC is the card or slot, and DDDD is the device or pseudo point (Page 26, 51) [1].

In this example, 03 (PP) identifies Cabinet 3, 03 (CC) identifies Slot or Card 3, and 0681 (DDDD) is the trouble code for Line Opened or Shorted on Data Card 2 (Page 280, 202) [1].

This fault typically indicates a short on the loop or an open circuit on a Class A loop (Page 202) [1].

AI-generated — verify against your panel's documentation and applicable codes (NFPA 72, local AHJ).

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