The IC698CHS009A is the “A” revision of GE Fanuc’s 9‑slot rear‑mount rack (chassis) for PACSystems RX7i / Series 90‑70 systems. Functionally it’s the same class of product as the base IC698CHS009: a 9‑slot VME‑style backplane used to mount the power supply, CPU, and I/O/specialty modules.

What the “A” suffix means

• In GE Fanuc part numbering, the trailing letter (A, B, C, …) typically indicates a hardware revision or minor design update (e.g., updated backplane layout, connectors, or compliance markings) while keeping the same basic form factor and slot count.
• For IC698CHS009A specifically, documentation and distributors describe it as a 9‑slot RX7i rear‑mount rack with the same core role as IC698CHS009: providing the backplane, mechanical structure, and power distribution for RX7i CPUs and I/O.

Key specifications (typical for IC698CHS009A)

From GE/RX7i rack documentation and supplier descriptions:

• Slots: 9 universal slots (VME‑style, 0.8 in / 20.3 mm pitch)
• Platform: RX7i / Series 90‑70 systems; supports RX7i CPUs, I/O modules, and many VME cards
• Mounting: Rear (panel) mount, typically in 19‑inch class cabinets
• Backplane: VME64‑compatible bus, supporting high‑speed data exchange between modules
• Power distribution: Integrated backplane power rails; designed to work with standard RX7i power supplies (e.g., 100 W / 350 W class)
• Environmental (typical):
  • Operating temperature: 0 °C to +60 °C
  • Humidity: 5–95 % non‑condensing
• Certifications: Commonly listed with UL / CSA / CE type approvals for industrial use

In practice, IC698CHS009 and IC698CHS009A are treated as interchangeable 9‑slot RX7i racks for most system designs; the “A” mainly matters for exact revision control, spare‑part matching, and compliance documentation.

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