GE IS215ACLEH1BB – Application Control Ethernet module for GE Mark VI/VIe turbine control

The GE IS215ACLEH1BB is an Application Control Layer Ethernet (ACLE) board, used to provide reliable 10/100 Mb Ethernet connectivity within GE Speedtronic Mark VI and, in many cases, Mark VIe control architectures. From my experience, plants use this module to bridge controller backplane communications to the HMI/plant network and to support redundant network paths in TMR or dual systems. The H1BB hardware revision is conformal-coated (IS215 series), which typically handles harsher cabinet environments better than the non‑coated equivalents.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

One thing I appreciate is how straightforward installation tends to be when the module is replacing an existing ACLE in a Mark VI rack—mechanically it slides in the same guides, and addressing is consistent with the controller configuration files. You might notice that the board’s status LEDs make commissioning faster, especially during switchover testing.

Key Features

• Industrial 10/100 Ethernet interface – Provides deterministic, reliable Ethernet connectivity between the controller backplane and plant/HMI networks.
• Designed for Mark VI/VIe systems – Fits standard GE control racks; typically used with UCx controller families in single, dual, or TMR architectures.
• Conformal-coated (IS215) – H1BB revision uses protective coating that helps resist humidity and airborne contaminants in typical turbine enclosures.
• Backplane-powered – Draws regulated 5 VDC from the VME-style backplane, simplifying wiring and service.
• Front-panel diagnostics – Link/activity LEDs and board health indicators speed up troubleshooting during outages.
• Field-proven reliability – In many cases, operators report stable communications over long runs with shielded Cat5e/Cat6 cabling.

A maintenance lead at a combined-cycle site told us the H1BB units “seem to be less finicky with cabinet temperature swings,” which mirrors what we’ve seen in service logs.

Technical Specifications

Related or Supporting Products

• GE IS215UCVEH2A – Mark VIe controller board commonly paired with ACLE modules for high-performance turbine applications.
• GE IS215ACLAH1A – Application Control Layer module variant used where alternate interface requirements exist; selection depends on network design.
• GE IS200ACLEH1xx – Non‑conformal (IS200 series) versions of the ACLE for cleaner cabinet environments; typically interchangeable by function, verify firmware and revision match.
• Shielded Cat5e/Cat6 Industrial Ethernet Cables – Recommended for cabinet-to-switch runs to reduce noise and maintain link stability.

If you’re replacing a legacy ACLE, it usually pays to confirm firmware alignment with your controller and HMI image before the outage. That small check avoids rework.

Installation & Maintenance

• Cabinet & rack – Install in a GE Mark VI/VIe rack with proper card guides; maintain 25–50 mm clearance for airflow. Keep ambient within spec; filtered, dry air helps longevity.
• Wiring – Use shielded, industrial Cat5e/Cat6 with proper grounding. Avoid tight bends near VFD cabling; segregate Ethernet from power runs.
• ESD & safety – De-energize the rack section when possible; use ESD strap and handle by edges. Do not hot-swap unless GE procedures explicitly permit it.
• Commissioning – Verify link LEDs, network redundancy, and HMI connectivity. Document MAC/IP settings in the maintenance log.
• Routine care – Quarterly visual check for dust and corrosion; clean with dry, oil‑free air. Annually, reseat connectors and confirm firmware/application versions are in sync with the controller build.

Quality & Certifications

• Certifications: Typically CE for EMC; UL/CSA recognition on the assembly level within the Mark VI/VIe system; ISO 9001 manufacturing. RoHS compliance varies by production vintage.
• Warranty: 365 days standard coverage on this unit.

If you’re balancing spares, one practical approach is to hold a single H1BB ACLE per critical cabinet. It keeps downtime short, and in most cases, configuration transfer is straightforward during an outage window.