General Description

The IS200JPDMG1A is a JPDM Three-Bus Power Distribution Board designed for the GE Speedtronic Mark VI Turbine and Gas Turbine Control System. It provides centralized 28 V DC power distribution with a triple-bus redundant architecture, integrated protection, and diagnostic capability for high-availability turbine control applications.

Technical Specifications

Model / Type: IS200JPDMG1A

Product Name: JPDM Three-Bus Power Distribution Board

Applicable System: GE Speedtronic Mark VI Turbine / Gas Turbine Control System

Power Input

Input Voltage: 28 V DC

Bus Architecture:

Three independent DC busbars: R / S / T

Maximum Input Current:

Up to 35 A per terminal

Power Output

Output Voltage: 28 V DC

Output Connectors:

Total of 13 outputs

3 × 9-pin connectors

7 × 2-pin connectors

3 × 6-pin connectors

Protection:

Independent fuse protection on each output channel

Connector Configuration

P1 / P2: 50-pin ribbon cable connectors (diagnostics)

JA1: DC62 female connector (PPDA interface)

Auxiliary Outputs: 3 × 2-pin Mate-N-Lok connectors

Environmental Conditions

Operating Temperature: −40 °C to +70 °C

Storage Temperature: −40 °C to +85 °C

Humidity: 5% to 95% RH (non-condensing)

Mechanical Characteristics

Dimensions (W × H × D):
Approx. 200 mm × 115 mm × 57 mm

Installation Method: DIN-rail mounting

Weight: Approx. 0.9 kg

Core Features
Triple-Bus Redundant Architecture

Supports R/S/T three independent DC buses, allowing operation in single-supply, dual-supply, or triple-redundant power configurations, significantly improving system availability and power resilience.

Per-Channel Fuse Protection

Each power output is protected by an independent fuse, enabling fast overcurrent isolation and preventing fault propagation across the power distribution network.

PPDA Diagnostic Integration

Through the JA1 interface, the board connects to the Power Diagnostic Pack (PPDA), providing real-time power monitoring, status feedback, and early fault warning capabilities.

Modular System Integration

Fully compatible with Mark VI JPDB, JPDF, and JPDE power distribution modules, supporting centralized and scalable power management within turbine control cabinets.

Industrial-Grade Robust Design

Designed with a wide operating temperature range and high-strength PCB construction, ensuring stable, long-term operation in harsh industrial environments such as gas and steam turbine installations.

Typical Applications

Centralized power distribution node for GE Mark VI gas and steam turbine control systems

Redundant power management centers in distributed I/O architectures

Power bus expansion for critical control cabinets in power generation, petrochemical, and heavy industrial facilities

Turbine control systems requiring multiple independent power supplies and fault isolation