Description
Product Introduction
The GE IS200EXMDG1APR is a Mark VIe series expansion master module that provides master control capability for Mark VIe expansion systems with specific hardware configuration. This I/O pack enables master control functionality for expansion applications requiring centralized control.
The APR suffix denotes a specific hardware configuration with unique master control features and diagnostic characteristics. In our field experience, the EXMD provides essential master control for expansion applications. For facilities requiring expansion master control with this specific configuration, the EXMD provides the necessary solution.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | IS200EXMDG1APR |
| Series | Mark VIe IS200 |
| Hardware Revision | APR (specific hardware configuration) |
| Function | Master control, expansion capability |
| Diagnostics | Master status monitoring |
| Isolation | 500 V DC input-to-backplane |
| Operating Temperature | −30°C to +65°C (ambient, with 0.5 m/s airflow) |
| Power Supply | 24 V DC from backplane, 260 mA typical |
| Bus Interface | VME-based high-speed parallel bus |
| Firmware | Verify compatibility with ToolboxST/ToolboxEX versions ≥6.0 |
| LED Indicators | Module power, status, fault |
Key Selling Points & Differentiators
- Expansion master – provides master control capability for expansion systems.
- Specific hardware configuration – unique master features for demanding applications.
- Rigorous 48-hour burn-in – each unit runs under master control load across temperature cycling.
- 3-year warranty on hardware – backed by our in-house repair depot with average 48-hour turnaround.
Frequently Asked Questions (FAQ)
Can I hot-swap this IS200EXMDG1APR into a running Mark VIe system?
We strongly advise against it. The EXMDG1APR has shown unpredictable behavior when inserted into a powered backplane. Schedule a controlled outage, de-energize the rack, and swap it during planned maintenance.
What is the master control capability of this module?
Master control capability varies by configuration. Verify with OEM datasheet for specific master control specifications.
How do I verify this is a genuine GE module?
We source exclusively from GE-authorized liquidations. Our verification includes OEM packaging inspection, serial number cross-check against GE records, and PCB inspection for GE-specific markings.
What is the expected lifespan of this unit?
We see MTBF around 145,000 hours for the APR revision. We have seen these units exceed 15 years in field service.

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