Emerson IC695CHS012-DR PACSystems RX3i 12-Slot Universal Backplane
A twelve-slot RX3i universal backplane whose DR hardware revision must remain aligned with the installed CPU firmware and rack record.
Technical Summary
PRODUCT CONTEXTIC695CHS012-DR is the twelve-universal-slot base for a PACSystems RX3i rack. It provides the common backplane structure used by the supported RX3i power supply, CPU and I/O arrangement.
The DR execution is later than the minimum CA backplane level named for current CPE302, CPE305 and CPE310 installations. Those CPU instructions also require firmware R10.85 or later with JC-or-later backplanes, so the controller firmware belongs in the replacement review.
Specifications
CONTROLLED DATA12
DR
CPE302 / CPE305 / CPE310 backplane rules
RX3i system hardware; not a Series 90-30 CPU rack
Features
FUNCTIONAL DISTINCTIONSUnified rack foundation
A single twelve-position backplane holds the documented RX3i module arrangement and distributes the rack connections among supported components.
Revision-controlled service
The DR marking identifies the backplane hardware level, so a spare should be accepted by complete catalog number rather than by slot count alone.
Configuration continuity
A captured slot map lets the controller, communications modules and field I/O return to their approved positions after replacement.
About IndustryParts
https://www.industryparts.com/Controlled handling for IC695CHS012-DR
IndustryParts keeps the submitted IC695CHS012-DR identity, requested quantity and installed-system evidence together so a proposed supply can be checked before dispatch.
- Complete submitted model retained
- Installed-system evidence reviewed
- Quotation record kept with the enquiry
Compatibility
SELECTION BOUNDARIESCPU and firmware
For CPE302, CPE305 or CPE310 service, verify the controller firmware satisfies the published JC-or-later backplane requirement before installing IC695CHS012-DR.
Power and system modules
Compare every installed supply and system module with the current RX3i system configuration instead of assuming any RX3i-labeled device is interchangeable.
Legacy rack exclusion
Do not treat a Series 90-30 CPU rack as an equivalent replacement path; those CPUs are not operated in an RX3i rack.
Replacement
SERVICE WORKFLOWCapture
Export the controller project and record the complete rack order, firmware levels, slot assignments and wiring labels.
Exchange
Isolate rack power, preserve keyed terminal assemblies and install the exact IC695CHS012-DR identity without changing module positions.
Prove
Restore power under the approved procedure, confirm every module is recognized and complete the required I/O and communications checks.
FAQ
CUSTOMER DECISION SUPPORTWhy does the DR suffix matter when ordering IC695CHS012-DR?
It identifies the backplane hardware revision. The suffix must remain visible because CPU firmware requirements can change with later backplane revisions.
Can IC695CHS012-DR replace a twelve-slot Series 90-30 main rack?
No. The supported CPU instructions distinguish RX3i backplanes from Series 90-30 CPU racks, so the controller and rack architecture must be reviewed as a system.
What should accompany a IC695CHS012-DR quotation?
Provide the complete backplane label, CPU catalog number and firmware, power-supply identity, module slot map and clear rack photographs.
Why should the slot map be captured before removing IC695CHS012-DR?
The map preserves the configured relationship among the CPU, communications hardware and I/O modules and reduces the risk of restoring a module to the wrong position.
What closes a IC695CHS012-DR replacement record?
Record the accepted DR backplane identity, recognized module inventory, controller fault state, network status and the results of the approved I/O proof test.

