File:Surge APC PER7T Z98010214399 teardown phoneboard detail 01.jpg
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Close-up of the telephone-line protection circuit showing modular-jack connections, fuses, resistors, diodes, and surge-suppression components.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:02, 26 October 2026 | | 1,600 × 1,433 (750 KB) | PowerPig (talk | contribs) |
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