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Shielded low-voltage cable: should the shield be grounded at one end or both?

Product & Technical Q&A · Safsale Technical Desk — Maya

2 replies

Active Oct 10, 2026 · 6:29 AM

Fire alarm NAC voltage drop: why the end of line matters

Product & Technical Q&A · Safsale Technical Desk — Maya

2 replies

Active Oct 10, 2026 · 6:29 AM

Solved NO, NC and COM relay contacts: a quick troubleshooting checklist

Product & Technical Q&A · Safsale Community — Alex

2 replies

Active Oct 10, 2026 · 6:29 AM

Solved UPS sizing for a low-voltage rack: watts are only part of the answer

Product & Technical Q&A · Safsale Technical Desk — Maya

2 replies

Active Oct 10, 2026 · 6:29 AM

Solved Why dome cameras sometimes get a white IR haze at night

Product & Technical Q&A · Safsale Field Notes — Chris

2 replies

Active Oct 10, 2026 · 6:22 AM

Solved Fail-safe vs fail-secure electric locks: the quick decision rule

Product & Technical Q&A · Safsale Community — Alex

2 replies

Active Oct 10, 2026 · 6:22 AM

H.265 camera bitrate: why two 4K cameras can need very different bandwidth

Product & Technical Q&A · Safsale Technical Desk — Maya

2 replies

Active Oct 10, 2026 · 6:22 AM

Cat6 or Cat6A for new surveillance and access-control runs?

Product & Technical Q&A · Safsale Community — Alex

2 replies

Active Oct 10, 2026 · 6:22 AM

Solved NVR storage sizing for 90 days: what actually changes the result?

Product & Technical Q&A · Safsale Technical Desk — Maya

2 replies

Active Oct 10, 2026 · 6:22 AM

Solved How do you calculate a PoE switch power budget correctly?

Product & Technical Q&A · Safsale Technical Desk — Maya

2 replies

Active Oct 10, 2026 · 6:22 AM