DS200ACNAG1ADD | ARCNET Connection card ACNA series

Series Mark V

Part number DS200ACNAG1ADD

Function Description ARCNET connection card

Functional acronym ACNA series

PCB coating Common coating

Feature revision 1 One

Functional revision 2 D

Artwork modification D

Product description

The DS200ACNAG1ADD is an ARCNET (Attached Resource Computer Network) card manufactured by General Electric for its Mark V series. The Mark V is part of GE's successful Speedtronic line of gas/steam turbine management systems. The family has been managing heavy-duty turbine systems since the 1960s, and GE has developed more reliable and advanced systems where technology allows. The Mark V has triple redundant backup on all critical control and protection parameters and includes features such as built-in diagnostics and online maintenance. Although the DS200ACNAG1ADD product itself could be defined as an ARCNET card, the product with this feature in the initially developed Mark V series would be a DS200ACNAG1 master printed circuit board missing three significant revisions of the DS200ACNAG1ADD product.

Hardware tips and specifications

The DS200ACNAG1ADD card provides a connection point for ARCNET LAN communications within the MKV system. Due to this specific expected function in its larger Mark V turbine control system family of automatic drive components, the DS200ACNAG1ADD product required its own set of features introduced into hardware components and component specifications. The DS200ACNAG1ADD board signal is transmitted through the ARCNET board on the path between the main processor boards (LDCC) to the turbine control operator interface and back again. These signals are transmitted over coaxial cables. The DS200ACNAG1ADD is a small circuit board with few components. The board has four metal film resistors (R1 to R4), three capacitors (C1 to C3), and a diode. Two factory holes on either side of the board inserted metal washers into its openings. The two openings are labeled GND1/GND2. Two relays are located near the bottom edge of the board. The top surfaces of both relays contain relay diagrams. A relay diagram is a visual representation of the relay logic that allows the relay to operate. The DS200ACNAG1ADD has three communication devices. This includes a vertical pin terminal connector with six pins located right in the center of the board, and two BNC plugs (right angles, female heads) with openings located on the top edge of the board. These plugs will accept LAN coaxial cable.