The Emerson KJ2101X1-CK1 (also referenced as DeltaV part number 12P3283X012) is a specialized PROVOX I/O Interface Carrier manufactured by Emerson Process Management.
Engineered specifically for plant modernization projects, this carrier enables direct integration of legacy PROVOX I/O cards into modern DeltaV Distributed Control System (DCS) architectures without requiring the rewiring of existing field terminal blocks.
Technical Specifications
| Parameter | Specification |
| Manufacturer | Emerson Process Management |
| System Compatibility | DeltaV DCS / Legacy PROVOX System Migration |
| Model / Part Number | KJ2101X1-CK1 |
| Emerson Assembly Number | 12P3283X012 |
| Carrier Type | DeltaV PROVOX Migration I/O Interface Carrier |
| Slot Capacity | Multi-slot carrier for PROVOX cards & DeltaV I/O interfaces |
| Operating Voltage | 24V DC / System Power Bus via DeltaV Carrier Power Supply |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Mounting Format | Standard DeltaV 2-Wide / 8-Wide Carrier Rack or Panel Mounting |
Core Features & Operating Capabilities
- Modernization Without Rewiring: Allows existing PROVOX field wiring, field termination assemblies (FTAs), and cabinet field cables to plug directly into DeltaV I/O nodes, eliminating time-consuming and error-prone field commissioning rewiring.
- Redundant DeltaV LocalBus Connection: Plugs directly into the standard DeltaV I/O carrier bus (LocalBus), enabling seamless high-speed communication back to DeltaV M-Series or S-Series Controllers (such as MQ, PK, or SX controllers).
- Reduced Cutover Downtime: Significantly shortens scheduled plant shutdown windows during control system upgrades by facilitating a simple “rip-and-replace” card insertion setup.
- Onboard Diagnostic Isolation: Provides electrical signal isolation and power conditioning between the DeltaV system backplane and legacy PROVOX field circuits.
- Rugged Industrial Build: Built to withstand harsh chemical and refinery cabinet environments with an extended temperature operating envelope (-40°C to +70°C).
Related DeltaV Migration & PROVOX Hardware
- KJ2101X1-BA1 — DeltaV 8-Wide Standard I/O Interface Carrier.
- KJ1501X1-BC1 — DeltaV System Power Supply Module (24V DC).
- VE4001S2T2 / SE3006 — DeltaV MQ / PK Controller Assemblies.
- PROVOX Systems — Emerson legacy DCS platform (I/O cards, files, and multi-bus structures).






