Description
The 173C8535DHG01 is a General Electric Application I/O Terminal Board (ATBA-class interface board) designed for GE Innovation Series drives and Speedtronic Mark V/Mark VI turbine control cabinets, carrying the catalogue equivalent IS200ATBAG1B. Functioning as the single customer-interface gathering point on the CABP backplane, the 173C8535DHG01 terminates system-fault, local-fault, digital, analog, tachometer, SSR, potentiometer and relay-contact signals on one clearly labelled 60-position terminal block — eliminating the scattered terminal strips that traditionally complicate commissioning and troubleshooting.
Application Scenarios
A combined-cycle power plant in the Middle East running two GE Frame 9E gas turbines needed to replace a corroded customer-terminal assembly inside a Mark VI cabinet after a cooling-water leak in the auxiliary bay had damaged the original board beyond repair. Because the turbine controller was still a workhorse asset with no near-term migration plan, the plant sourced a verified 173C8535DHG01 to match the existing J6/J7 connector scheme and “B” functional revision. Swapping the board restored all 12 digital inputs, 13 digital outputs, 5 analog inputs, 5 analog outputs and the 10-channel tachometer group without touching controller configuration — turning what would have been a multi-day re-engineering exercise into a single-shift board replacement.
The 173C8535DHG01 addresses three chronic pain points in turbine and drive installations: the sprawl of application I/O across multiple terminal assemblies inside a crowded cabinet, the risk of configuration drift caused by jumpers and potentiometers loosening under vibration, and the growing scarcity of original-equipment spares for Speedtronic-era hardware. Wherever a GE drive or turbine control cabinet must exchange field signals with the controller — exhaust thermocouples, bearing-temperature RTDs, vibration switches, lube-oil pressure permissives, fuel-valve feedback, inlet-guide-vane actuators — the 173C8535DHG01 provides the definitive termination point.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 173C8535DHG01 (equivalent catalogue ref: IS200ATBAG1B / IS200ATBAG1BAA1) |
| Manufacturer | General Electric (GE Industrial Systems / GE Fanuc heritage) |
| Product Category | Application I/O Terminal Board / Interface Board |
| System Platform | GE Innovation Series drives; Speedtronic Mark V and Mark VI turbine control |
| Primary Function | Signal termination on CABP backplane connectors J6 and J7 |
| Terminal Block | 60 positions, two rows of 30 — one labelled block for all application I/O |
| Signal Groups | 3 system-fault, 3 local-fault, 12 DI, 5 AI, 10 tach, 3 MA pilot, 2 feedback, 2 SSR, 13 DO, 2 pot, 5 AO |
| Connector J6 | 36-pin vertical header (4 × 9), rated 225 V / 1 A — carries relay and CONA circuits |
| Connector J7 | 25-pin vertical header, rated 50 V / 1 A — carries low-voltage signal group |
| Configuration Hardware | None — no jumpers, no DIP switches, no potentiometers, no firmware |
| Mounting | DIN rail, secured with nine screws/washers into standoffs plus two corner holes |
| Mechanical Retention | Integrated cable shield along one board edge |
| Approximate Weight | 1 kg (2.2 lb) |
| Country of Origin | United States of America |
| Reference Documentation | GEI-100284 (installation and board replacement) |
