Overview
The Modicon AS-J890-002 is a remote I/O processor module engineered for industrial automation systems based on the Modicon 984 Series controller platform. This unit facilitates seamless communication between Modicon 984-series PLCs and 800 Series remote I/O modules over coaxial cable networks. The AS-J890-002 expands I/O connectivity options and improves scalability in existing control infrastructure.
Key Features
- Supports 800 Series I/O module integration with Modicon 984 controllers and Quantum PLC series
- Dual BNC connector interfaces for flexible single or dual remote I/O cable configurations
- Rack-mounted 800 Series form factor with dip-switch-selectable drop addressing
- Requires external 75-Ohm terminator (not internally terminated)
- Enables expanded I/O scalability and remote device flexibility
- Plug-and-play integration into existing Modicon 984 Series systems
Technical Specifications
- Part Number: AS-J890-002
- Manufacturer: Modicon (Schneider Electric)
- Series: Modicon 984 / 800 Series
- Connectors: Dual BNC (F-type coaxial connectors)
- Communication: Remote I/O over coaxial cable networks
- Drop Addressing: Dip-switch selectable (binary-plus-one method)
- Termination: External 75-Ohm terminator required
- Form Factor: 800 Series rack-mounted module
- Power Requirements: Requires support power supply
Typical Applications
The AS-J890-002 is ideal for manufacturers looking to expand their existing Modicon 984 control systems with additional remote I/O capabilities. Common applications include:
- Manufacturing floor control systems requiring remote sensor and actuator integration
- Process automation facilities with distributed I/O requirements
- Legacy Modicon 984 system upgrades and expansions
- Facilities integrating 800 Series I/O modules into S908-equipped controllers
- Multi-drop remote I/O networks across production environments
Compatibility & Replacements
Compatible With
- Modicon 984 Series programmable logic controllers
- Quantum PLC series with 800 Series I/O protocol support
- S908-equipped Modicon controllers
- All Modicon 800 Series I/O modules
- Schneider Electric remote I/O cable systems
Replaces / Drop-In Replacement For
- AS-J890-001 (single connector variant; AS-J890-002 offers dual connector flexibility)
- Legacy remote I/O adapter modules in Modicon 984 installations
Works With
- Modicon 800 Series I/O protocols (S908 networks)
- Remote I/O coaxial cable networks (single or dual cable operation)
- Modicon Remote I/O system planning and configuration tools
- BNC and F-type coaxial connector assemblies
