Product Core Brief

• Model:
• Brand: GE Fanuc / Emerson Automation
• Series: PACSystems RX3i
• Core Function: 7-slot universal passive backplane for RX3i platform, provides mechanical mounting and dual-bus electrical connection for power supply, CPU, communication and I/O modules. Dual-bus architecture supports native RX3i PCI bus and serial expansion bus for legacy Series 90-30 migration solutions.
• Product Type: RX3i Universal Backplane (Passive Chassis)
• Key Specs: Total 7 physical slots | Slot0 dedicated power slot | Slots1–5 Dual PCI+Serial Bus | Slot6 PCI-only | Horizontal DIN rail mounting | Integrated ground bar Note: Active lifecycle RX3i baseplate; new original, surplus & refurbished stock available. I/O modules support hot-swap on this backplane; CPU, NIU and redundant modules cannot be hot swapped. Cannot directly install IC693 Series 90-30 modules into main rack; Series 90-30 I/O requires IC695LRE001 on remote expansion racks. Multiple expansion racks can be cascaded via serial transceiver modules.

Key Technical Specifications

• Slot Layout Definition
  • Slot 0: Dedicated slot exclusively for IC695 series power supply modules
  • Slots 1 ~ 5: Dual-bus slots (PCI backplane + Serial Expansion Bus)
  • Slot 6: PCI-only slot, no serial bus signals
• Backplane Architecture: Dual bus
  • High-speed PCI bus for all native IC695 RX3i modules
  • Serial expansion bus for connecting IC695LRE001 to remote Series 90-30 racks
• Internal Power Consumption of Backplane
  • 3.3 VDC: 600 mA
  • 5 VDC: 240 mA
• Field Interface: Isolated 24 VDC terminal block on left side
• Grounding: Integrated internal ground bar for module shield and chassis EMC grounding
• Mounting: Horizontal DIN rail mounting ONLY; vertical installation not recommended by factory
• Clearance Requirement: Minimum 102 mm (4 inches) airflow clearance on all sides
• Compatible Power Supplies: IC695PSA140, IC695PSD140, IC695PSD040
• Compatible Controllers: All RX3i CPU / CPE series (IC695CPU315, CPU320, CRU320, CPE310, CPE330)
• Hot Swap Capability: Hot-swap rated baseplate; discrete/analog/communication I/O modules support hot swap
• Operating Temperature: 0°C ~ +60°C horizontal cabinet mounting
• Storage Temperature: -40°C ~ +85°C
• Physical Dimensions: 264.9 × 141.4 × 147.3 mm
• Compatible Software: Proficy Machine Edition
• Agency Certifications: UL508, Class I Div.2, CE

Product Introduction

is a compact 7-slot universal passive backplane for PACSystems RX3i, optimized for small machine control panels, standalone skid systems and lightweight remote I/O stations. The dual-bus design is the core advantage: Slots1–5 carry both PCI high-speed bus and serial expansion bus, supporting incremental migration from legacy Series 90-30 systems without full cabinet replacement.

Critical Slot Layout Rules

1. Slot0 is reserved for power supply. Never install CPU or I/O modules in Slot0.
2. IC695LRE001 serial expansion transceiver cannot be placed in Slot6, must be installed in Slots1~5.
3. Dual-width CPUs (IC695CPU315 / CPU320 / CRU320) occupy two consecutive adjacent slots; reserve continuous space during layout planning.

Comparison with other RX3i baseplates:

• : 7 slots (compact small rack)
• IC695CHS012: 12 slots medium universal rack
• IC695CHS016: 16 slots large universal rack All models share identical dual-bus architecture and module compatibility.

QA & Testing SOP (Transparency Building)

1. Incoming Inspection: Verify part marking. Inspect backplane gold edge connectors for oxidation, bending, contamination; check terminal block and DIN rail mounting brackets for damage.
2. Live Testing: Mount qualified power supply and RX3i modules into slots. Apply rack power, verify backplane bus communication, confirm all modules are detected in PME hardware configuration, run continuous 24-hour rack stability test.
3. Electrical Testing: Check continuity of power traces and ground bar; insulation resistance ≥10MΩ between backplane circuits and chassis protective ground.
4. Documentation: Photograph slot layout and wiring positions before shipment.
5. Final QC & Packaging: Place unit inside anti-static shielding. Attach dated QC test tag confirming bus connectivity validation prior to shipment.

Installation Pitfalls & Guide

❗ Horizontal Mount Mandate: Only horizontal DIN rail installation. Vertical mounting impairs natural convection and reduces long-term reliability. ❗ Strict Slot0 Restriction: Only IC695 power supply modules can be installed in Slot0. ❗ Slot6 Bus Limitation: Do not install IC695LRE001 serial transceiver into Slot6; Slot6 lacks serial bus signals. ❗ Dual-Slot CPU Layout Planning: CPU315/CPU320/CRU320 occupy two consecutive slots; avoid splitting across slot boundaries. ❗ Hot Swap Boundary: I/O modules support hot swap; CPU, NIU, redundant memory modules cannot be hot swapped. ❗ EMC Grounding Specification: Connect chassis ground to the built-in ground bar to suppress noise and static discharge. ❗ Power Budget Calculation: Sum all modules’ 3.3V / 5V consumption to avoid overloading the power supply.

Replacement Guide

1. Pre-install: Lockout-tagout rack power; save complete PME hardware configuration. Photograph existing slot arrangement, wiring and power module position.
2. Removal: Power off all modules, extract every module from baseplate, detach DIN rail mounting clips.
3. Install: Mount new horizontally on DIN rail, install power supply first, then all modules following original slot mapping.
4. Power-on Test: Restore power; launch Proficy Machine Edition, confirm all modules detected without mismatch faults, verify I/O scanning and communications.

FAQ

Q: Does support hot swap? A: The baseplate itself is hot-swap rated. Standard I/O & communication modules support hot swap; CPU / NIU / redundant modules cannot be hot swapped.

Q: What is the difference between , CHS012 and CHS016? A: Only total slot quantity differs; electrical architecture and module compatibility are identical:

• CHS007: 7 slots compact rack
• CHS012:12 slots
• CHS016:16 slots

Q: Can I plug IC693 Series 90-30 modules directly into this backplane? A: No. IC693 modules cannot mount directly into RX3i backplane. They must be installed on remote expansion racks via IC695LRE001 serial transceiver.

Q: Can multiple expansion racks connect to one main rack? A: Yes, up to 7 expansion racks via IC695LRE001, subject to CPU type and backplane bandwidth limits.

Q: Can multiple power supplies be installed on one ? A: Slot0 is a single dedicated power slot; only one power supply can be fitted. For higher power demand, optimize module load or select larger baseplate.