Schneider ASJ890102 | Remote I/O Processor

The Schneider ASJ890102 manages remote I/O communication for the 800-Series automation platform. This RIO processor connects field devices to the main controller over long distances. It supports up to 32 remote I/O drops for distributed control architectures. Weighing only 0.42 kg, the Schneider ASJ890102 mounts easily on a DIN rail. Its dimensions measure 125 mm x 90 mm x 65 mm.

Communication Specifications and Network Capabilities

The Schneider ASJ890102 uses a high-speed serial link for remote I/O communication. This processor delivers 1.5 Mbit/s data transfer rates over distances up to 1,200 meters. It supports both coaxial and fiber optic cable types for flexible installations. Moreover, the Schneider ASJ890102 includes built-in diagnostics for network health monitoring. Consequently, you can identify and resolve communication faults quickly.

Energy Storage and Internal Components

The Schneider ASJ890102 contains no internal battery for complete maintenance-free operation. It stores configuration data in non-volatile flash memory instead. This processor draws 250 mA from the 5 V DC backplane power supply. Additionally, it consumes 100 mA from the external 24 V DC field power supply. The Schneider ASJ890102 includes LED indicators for power, communication, and fault status. Therefore, you never need to replace batteries or worry about program loss.

Technical Specifications Table

Below are the complete technical parameters for engineers and procurement teams:

Parameter	Specification
Full Product Name	Schneider ASJ890102
Product Category	800-Series Remote I/O (RIO) Processor
Communication Protocol	Proprietary Schneider Remote I/O
Transmission Speed	1.5 Mbit/s
Maximum Cable Distance (Coaxial)	1,200 meters (4,000 feet)
Maximum Cable Distance (Fiber)	2,000 meters
Maximum Remote I/O Drops	32
Maximum I/O per Drop	128 discrete or 32 analog
Total System I/O Capacity	4,096 discrete or 1,024 analog
Supported Cable Types	Coaxial (RG58) or Fiber optic
Built-in Diagnostics	Network health and module status
LED Indicators	Power (green), RUN (green), COM (yellow), FLT (red)
Current Consumption (5V DC)	250 mA from backplane
Current Consumption (24V DC)	100 mA external field supply
Power Dissipation	1.85 W maximum
Energy Storage	No battery (flash memory only)
Number of Components	1 main PCB + 2 communication ports + metal housing
Net Weight	0.42 kg (420 grams)
Gross Weight (packaged)	560 grams
Dimensions (H x W x D)	125 mm x 90 mm x 65 mm
Coaxial Connector Type	BNC female
Fiber Connector Type	ST (optional adapter required)
Wire Size (Terminal)	AWG 24 to AWG 14 (0.2 mm² to 2.5 mm²)
Operating Temperature	0°C to +55°C
Storage Temperature	-40°C to +85°C
Degree of Protection	IP20
Certifications	CE, UL 508, CSA

Installation and Application Details

The Schneider ASJ890102 mounts directly onto a standard 35 mm DIN rail. Position this RIO processor near the main controller for best communication performance. Connect the coaxial cable to the BNC connector and terminate both ends properly. The Schneider ASJ890102 requires external 24 V DC power for its communication circuits. Use shielded cables for all field wiring to minimize electromagnetic interference. This RIO processor suits large material handling systems, assembly lines, and process plants. It also works perfectly for distributed pumping stations and conveyor networks. Thus, the Schneider ASJ890102 reduces field wiring costs while maintaining reliable remote control.