Work through this checklist before replacing a 3500/15 & Legacy Power Supplies unit — most field symptoms trace to wiring, grounding, or configuration rather than a failed module.
Key points at a glance
- 3500/15 power input module converts cabinet power to regulated rack supply
- Dual and triple (TMR) power input options for redundant racks
- Legacy 106M/110M modules serve older installations
- Undersized or aging supplies show up as intermittent rack resets
- Match input voltage option to the cabinet supply
Swap-test with the configured spare last: if the symptom follows the module, order the replacement; if it stays, the problem is in the loop.
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