Description
GE IS215WETAH1C (109W6503P001) WETA Top‑Box A Expansion Terminal Assembly Module
Product Overview
IS215WETAH1C, assembly part number 109W6503P001, is the WETA (Workstation Expansion Terminal Assembly) Top‑Box‑A main module for GE Speedtronic Mark VIe turbine control systems. 109W6503P001 represents the complete board assembly including the onboard BPPB daughter power backplane card inside IS215WETAH1C unit. It serves as distributed remote I/O rack master unit, providing IONet Ethernet communication interface, back‑plane power distribution and internal bus management for local I/O packs installed within the WETA expansion cabinet. It connects remote I/O packs to the main UCSB controller over redundant IONet, extending system I/O capacity for large‑scale turbine‑control projects. This is legacy US‑origin hardware; OEM production discontinued, mainly supplied as spare‑parts for existing power‑plant turbine installations.
IS215WETAH1C
Typical Applications
- Gas‑turbine & steam‑turbine distributed I/O expansion: Remote WETA cabinet master module for Mark VIe platform
- Combined‑cycle power plant: Expand I/O capacity for large turbo‑generator control & protection cabinets
- Oil‑gas turbo‑machinery: Remote signal collection for compressor turbine control systems
- Long‑distance field‑signal deployment: Reduce field cable length by placing I/O hardware close to field equipment
- Brown‑field maintenance & retrofit: Spare‑part replacement for existing WETA expansion racks; system capacity upgrade
- Power‑plant auxiliary control: Distributed I/O management for boiler‑side and balance‑of‑plant control loops
Specifications & Technical Parameters
| Item | Specification |
|---|---|
| Model | IS215WETAH1C |
| Assembly PN | 109W6503P001 (complete unit with BPPB daughterboard) |
| System Compatibility | Mark VIe / Mark VIeS turbine control system |
| Main Function | WETA rack master, IONet communication & back‑plane power distribution |
| Communication Ports | 2 × 10/100 Mbps RJ45 redundant IONet Ethernet |
| Internal Backplane | Proprietary high‑speed serial bus for local I/O packs |
| Power Supply | 24 VDC (18‑30 VDC), supplies regulated power to WETA rack I/O slots |
| Supported I/O Slots | Multiple slots for Mark VIe plug‑in I/O packs (PTUR, PPRO, PDIO, PAICH etc.) |
| Conformal Coating | PCB conformal coated for harsh cabinet environments |
| Operating Temperature | ‑30 ℃ ~ +65 ℃ |
| Storage Temperature | ‑40 ℃ ~ +85 ℃ |
| Humidity | 5‑95 % RH, non‑condensing |
| Cooling | Natural convection fan‑less design |
| Indicators | PWR, ATTN, LINK LED diagnostic status indicators |
| Certifications | CE, UL, Class I Div. 2 hazardous‑location approval |
| Origin | United States |
| Weight | Approx.1.1 kg |
| Mounting | Installed inside WETA expansion cabinet rack |
| Protection Class | IP20 (cabinet‑only installation) |
Key Features & Benefits
- Distributed remote‑rack master capability: Acts as master controller for remote WETA I/O cabinet, extends Mark VIe system I/O points without modifying main control rack.
- Dual redundant IONet Ethernet: Dual‑port IONet links ensure reliable communication between remote WETA rack and main UCSB controller, reduce single‑point‑of‑communication‑failure risk.
- Integrated BPPB power‑daughter‑card (109W6503P001 assembly): On‑board power distribution for all local I/O packs inside WETA rack, simplifies cabinet power‑wiring layout.
- Conformal‑coated PCB design: Enhanced moisture‑resistance and anti‑corrosion performance for humid, corrosive power‑plant cabinet environments.
- Full Mark VIe I/O‑pack compatibility: Supports most standard Mark VIe plug‑in I/O packs including PTUR, PPRO, PDIO, PAICH and PCTA series modules.
- Comprehensive LED diagnostics: Front‑panel status LEDs for power, alarm and network link status, simplify on‑site commissioning and fault troubleshooting.
- Fan‑less natural‑convection cooling: No moving fan components, improves long‑term reliability for continuous‑operation power‑plant cabinets.
Related Series‑Family Models (Mark VIe WETA & I/O family)
GE Mark VIe distributed WETA rack‑related hardware
- IS215WETAH1C (109W6503P001): WETA Top‑Box‑A master module (target model)
- IS200WETBH1B: WETA Top‑Box‑B variant module
- IS220PTURH1B: Turbine trip I/O pack for WETA rack
- IS220PPROS1B: PPRO overspeed‑protection I/O pack
- IS420UCSBH4A: UCSB main controller for main cabinet
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