About the IS200BCAAH1A
The main printed board in the PCAA module, the IS200BCAAH1A provides main power and a majority of analog interfacing options to the greater Mark VIe turbine assembly's processor board. This IS200BCAAH1A PCB also allows for:
- signal conditioned LVDT sensor interfacing
- servo output interfacing
- interfacing of two TTL flow sensors
This is a modified version of the preexisting IS200BCAAH1 parent board, featuring a singular functional revision rated at a "B" grade. This model PCB is available for both repair and replacement, with a standard lead repair time of one to two weeks upon purchase of repairs.
Hardware Tips and Specifications
As the main PCB in the PCAA module, the IS200BCAAH1A features a number of specifically-defined hardware components and specifications for normative use. This model should not be confused with the sister product IS200BCABH1A, which provides other signal conditioning functionality to interface for thermocouples, 4-20 mA inputs, vibration inputs, and various sensors in the overall module assembly. A highlightable element of this IS200BCAAH1A GE circuit board can be identified in its six analog current regulators. These regulators, each of which correspond with their own respective digital servo regulators, provide internal suicide protection relays which are controlled by the compatible PCAA board firmware. The six aforementioned servo outputs present on the IS200BCAAH1A support either three or two-coil servos, and they all provide a configurable jumper on the base TCAS terminal board for output configuration purposes. This configurable jumper is intended to be placed in the TMR designated position for 3-coil servos, and the OPEN designated position for the 2-coil servo.
As defined in the original GEH-6721G Mark VIe series factory-issued instructional manual, the IS200BCAAH1A features a processor board common to all I/O packs in the Mark VIe series; and contains:
- two fully-independent ethernet ports
- a hardware watchdog timer and reset circuit
- status-indication LEDs
- an Infrared serial communications port
- several local power supplies
- a local ambient temperature sensor
Beyond many of the hardware specifications outlined in original instructional manual material for the IS200BCAAH1A, a simple breakdown of its individualized, factory-issued product number can source much more relevant information. The IS200 initial portion of this IS200BCAAH1A part number designates it as being manufactured by General Electric in their Salem, Virginia factory, and is quickly followed by an inclusion of the BCAA functional industry acronym. Following an insertion of the BCAA acronym comes the "H1" portion of the IS200BCAAH1A product number, which designates this Analog Processing Board as a conformally-coated PCB that exists as a group one Mark VI series member. Conformal coating offers printed circuit boards an exhaustive and complete layer of protective coating that is somewhat thinner than the rival normal PCB coating alternative. The final "A" digit in the IS200BCAAH1A part number designates its singular functional revision as an A-graded functional revision.
