Summary
The FS‑N18N is a digital fiber‑optic sensor amplifier in Keyence’s FS‑N series (main‑unit type). It accepts Keyence fiber heads and provides a single NPN open‑collector control output with industry‑standard 12–24 VDC supply and compact industrial packaging.
| Attribute | Specification |
|---|---|
| Model | FS‑N18N |
| Product type | Digital fiber‑optic sensor amplifier (FS‑N series main unit). |
| Supply voltage | 12–24 VDC. |
| Control output | NPN open‑collector, 1 output. |
| Maximum output current | 100 mA (per output, stand‑alone use). |
| Residual voltage | ≤ 1 V (typical spec for open‑collector output). |
| Connector / cable | Cable or M8 connector variants exist across FS‑N family; check unit label for exact style. |
| Compatibility | Works with FS series fiber heads (reflective, small‑spot, long‑range heads). |
| Status | Listed as discontinued by some distributors; used and surplus units available. |