Product Description

The IS230TNAIH4C is a board component manufactured by the GE company for the Mark VI or the Mark VIe system.  Both systems were designed for the management of heavy-duty steam or gas turbines. They can also be used as management platforms for the integration of balance of plant controls.   The systems differ in several ways, but the most obvious one is that the Mark VI is a centralized control system built around a Central Control Module, while the Mark VIe is designed as a DCS, or distributed control system,  with nodal control modules under unified control.

The IS230TNAIH4C is an Analog I/O card that allows DIN-rail mounting.  This board features three IS220PDIA packs connected to the boards three 37 pin connectors (vertical) with latching fasteners (JR1/JS1/JT1.)   These discrete input packs provide the electrical interface between Ethernet networks (up to two) and the input terminal board. Each pack has a processor board with two independent 10/100 Ethernet ports and an internal temperature sensor.  This board also has a high-speed processor with RAM and flash memory. Any necessary diagnostics occur through the onboard LED indicator lights located at the top of each module. PDIA packs are able to be replaced without manual reconfiguration; Auto-reconfiguration should allow for an auto-download from the controller to any new I/O pack.  

The IS230TNAIH4C is populated by two terminal strips that screw mount to the board surface.  The board has two 3-position plugs. It is populated by several lines of capacitors, diodes, and resistors.   The board has twenty-five MOVs (metal oxide varistors) that are used to protect circuits from over-voltage conditions.  

The IS230TNAIH4C mounts to a DIN-rail frame via screw connections.   These are made through factory-made drill holes and two oval cutouts in the board surface.  The DIN rail extends past one edge and includes a shield bar. If more information is required, please reference publications from the manufacturer, such as part data sheets or series user guides.   GE was the original source for all Mark VI technical support.