What it is and what it does
The Omron CS1W-BI102 is a 10-slot passive backplane for CS1-series expansion I/O racks. It provides the mechanical and electrical bus to host up to ten I/O modules alongside the CPU backplane. For a mining pit panel packed with vibration‑dusted modules, this backplane shrugs off the shake — the CS1 rack hardware is built for the harsh side of industrial control. Ship in Bulk packaging, so expect single‑unit ordering; no retail box, but the backplane itself is the same rock‑solid Omron casting you’d use in a crusher control cabinet.
How it compares to the CS1W-BI103
Both CS1W-BI102 and CS1W-BI103 are expansion I/O backplanes for the CS1 series, sharing the same electrical bus and mounting pattern. The BI102 provides 10 slots; the BI103 is longer, so verify panel fit before swapping.
Production status and sourcing reality
Listed as Active in production — no end‑of‑life notice on file. The CS1 platform is mature but still supported; for new builds or line‑down replacements, this backplane can be quoted to order. Plan your BOM freeze around the usual Omron lead times; no immediate LTB pressure.