This IS215VCMIH2C is designed as a VME communication card in the GE Mark VI turbine control system and is critical to the proper function of the entire system.

The VCMI VME communication board allows the input/output (I/O) card to communicate with other I/O cards mounted on the VME backplane, I/O mounted in the expansion rack,

I/O backup protection modules, triple-redundant control modules, and the main processor module or main processor modules.

The IS215VCMIH2C card is also broadly referred to as the VMEbus master controller. www.abb-drive.com This PCB connects the communication between the I/O boards and the controller.

It also acts as the communication interface to the system control network (IONet).

The IS215VCMIH2C has four built-in port connections placed on its front panel.

These include an RS-232C serial port, D-plug connector, and three IONet 10Base2 Ethernet ports.

Each IONet connector is associated with three LEDs labelled TX/RX/CD.

The board has additional LEDs labelled Status, Fail, Run and 1. 2. 4 and 8.

The former is located above the reset switch (button) and the latter is located directly below the serial port.

Each control module in a Mark VI system typically contains an IS215VCMIH2C, these unique VCMI cards are used to execute data through the control system’s application software in communication with the main processor module.

Due to the critical nature of the VCMI modules, it is recommended that additional spares are kept on the shelf to avoid machine downtime situations.

The IS215VCMIH2CA is a VME communications interface card that is part of the GE Speedtronic Mark VI gas turbine control system. This PCB is used as a link between the I/O board and the controller.

It is also used as a communication interface to the IONet or system control network. A four-port connector is integrated into the front panel of the IS215VCMIH2CA.

An RS-232C serial port, a D-plug connector, and three IONet 10Base2 Ethernet connectors are among the features.

Three LEDs labelled TX/RX/CD are connected to each IONet port.Status, Fail, Run, and 1. 2. 4. and 8 are among the many LED indications on the board.

The former is located above the reset button (pushbutton) and the latter is located directly below the serial port. The design includes a TI 32-bit digital signal processor chip. There are three transformer assemblies in total.

The VMEbus host controller card contains more than 50 integrated circuits, including an oscillator chip, which reduces high-frequency noise on the board through the use of inductive beads.

The board has two backplane connectors, a 12-pin vertical connector and a range of other conductive connectors.