General Electric IS420YDOAS1B Discrete Output I/O Pack

Description

The GE IS420YDOAS1B is a high-performance discrete output I/O pack designed for integration with the Mark VIe control system. It provides reliable electrical interfacing between Ethernet-based controllers and discrete output terminal boards, supporting up to 12 relay outputs for industrial automation and turbine control applications.

Specifications

• Model Number: IS420YDOAS1B

• System Compatibility: GE Mark VIe and VIeS control systems

• Number of Outputs: 12 discrete outputs

• Communication Interface: Dual Ethernet RJ45 connectors

• Power Input: Three-pin power connector (24 VDC)

• Output Connector: DC37-pin connector to terminal board

• Diagnostic Indicators: 12 yellow LEDs for output status, 1 ATTN LED (red/green, solid/flashing)

• Response Time: 6 milliseconds

• Mounting Type: Panel-mounted or rack-mounted

• Operating Temperature: –40°C to +85°C

• Dimensions: Approx. 100 mm × 50 mm × 20 mm

• Weight: Around 2.0 lbs

• Functional Abbreviation: YDOA

• Technology: Surface-mount relay and coil monitoring

• Redundancy Support: Compatible with simplex or TMR configurations

Features

• Reliable Output Control: Manages up to 12 relay outputs with real-time feedback

• Dual Ethernet Ports: Enables redundant communication paths for high availability

• Visual Diagnostics: LED indicators provide clear status for each output and system health

• Modular Integration: Easily connects to GE terminal boards via DC37 interface

• Robust Environmental Tolerance: Operates in extreme temperatures and industrial conditions

• Redundancy Ready: Supports triple modular redundancy (TMR) for critical applications

• Fast Response: 6 ms switching time ensures timely control actions

• Global Support: Backed by GE’s service network for maintenance and replacement