GE DS200DDTBG2A Auxiliary I/O Terminal Board

This GE DS200DDTBG2A Auxiliary I/O Terminal Board provides screw terminal connections for auxiliary field signals. The board interfaces between sensors and the main Mark V control system. You will find this component in many GE turbine control cabinets globally. This board does not have a second variant suffix.

Technical Specifications

Parameter	Specification
Full Model	GE DS200DDTBG2A Auxiliary I/O Terminal Board
Category	Auxiliary I/O Terminal Board
Terminal Points	60 Screw-Type Terminals
Maximum Voltage	250 V AC or DC
Maximum Current	5 A per Terminal
Wire Gauge	28 AWG to 16 AWG
Isolation	1500 V RMS between Groups
Dimensions (H x W)	260 mm x 180 mm
Weight	Approximately 1.05 kg
Connectors	2 x 37-Pin D-Sub, 1 x 20-Pin Header
Component Count	16 Passive Components (Filters)
Energy Storage	None (Passive Board)

Field Wiring and Signal Routing Features

The GE DS200DDTBG2A Auxiliary I/O Terminal Board organizes auxiliary field wiring into clear functional groups. Each terminal includes a labeled position for easy identification. The board routes signals directly to the D-Sub connectors for controller connection. Furthermore, it includes simple RC filter networks on sensitive analog inputs. Consequently, noise from auxiliary field cables does not reach the main processor.

Installation and Connection Steps

Mount this GE DS200DDTBG2A Auxiliary I/O Terminal Board in the lower section of any Mark V cabinet. First, secure the board using four M4 mounting screws at the corners. After that, attach field wiring to the screw terminals following the printed labels. Then, connect the two D-Sub cables to the corresponding controller boards. Finally, verify each connection before applying power to the system.

Energy Discharge and Safety Notice

This GE DS200DDTBG2A Auxiliary I/O Terminal Board stores no significant energy. Therefore, you can handle it immediately after power removal. However, field wiring may carry hazardous voltages from external sources. Always disconnect external power before touching any terminal.

Status Indication and Diagnostics

This auxiliary terminal board has no active indicators or LEDs. However, each terminal position includes a test point for meter connection. You can verify signal presence using these test points without removing wires. The clear labeling helps technicians identify channels quickly during troubleshooting.