Product Overview
GE IS215WETAH1C (reference drawing number 109W6503P001) is the main backplane terminal board for the GE Mark VIe WETA remote‑expansion I/O assembly. It serves as the physical wiring interface between plant‑site field instruments and Mark VIe plug‑in I/O packs. It routes field‑wiring signals to installed I/O packs, distributes module operating power, and runs dual‑channel IONet communication links to the main UCSB controller. This board enables distributed remote‑I/O deployment for large‑scale turbine‑control cabinets. Conformal‑coated versions are available for high‑humidity and high‑vibration power‑plant cabinet environments. It is widely stocked as original spare‑part hardware for maintenance and retrofit of legacy Mark VIe power‑generation turbine‑control installations.
Series
IS215WETAH1C belongs to the WETA terminal‑assembly hardware family for Mark VIe system. Related revisions include IS215WETAH1A, IS215WETAH1B. 109W6503P001 is GE internal drawing reference number corresponding to IS215WETAH1C hardware assembly. WETA racks accept all standard Mark VIe I/O packs such as TCAI, TDO, PPRO, TAI, TDO, and other signal‑conditioning modules, extending I/O points away from main controller chassis.
Product Features
‑ Dedicated WETA‑rack main terminal backplane for field‑signal wiring termination ‑ Dual independent 10/100 Mbps IONet Ethernet ports for redundant communication with Mark VIe UCSB controller ‑ 28 VDC power‑input circuit distributes regulated operating power to all plug‑in I/O packs on the rack ‑ Heavy‑duty detachable screw‑terminal blocks for field‑instrument wiring connection ‑ Supports hot‑swap function for inserted I/O packs without rack power‑down ‑ On‑board hardware monitoring for power‑supply status and communication‑link health ‑ Conformal‑coated hardware option for anti‑dust, anti‑humidity turbine‑cabinet operating conditions ‑ Standard VME‑format mechanical design for WETA‑rack chassis installation ‑ 109W6503P001 is GE drawing reference number matching IS215WETAH1C assembly ‑ Direct drop‑in replacement for same‑revision IS215WETAH1C hardware for field‑site retrofit work
Product Parameters
‑ Part Number: IS215WETAH1C, Drawing Reference: 109W6503P001 ‑ Communication: Dual 10/100Base‑TX IONet Ethernet ports ‑ Power Supply Input: 28 VDC nominal ‑ Field Termination: Multi‑channel detachable screw‑terminal blocks ‑ Operating Temperature: ‑30 °C ~ +65 °C ‑ Storage Temperature: ‑40 °C ~ +85 °C ‑ Relative Humidity: 5‑95 %, non‑condensing ‑ Protection Rating: IP20 (cabinet‑rack installation only) ‑ Mechanical Form: VME‑size populated backplane board for WETA rack ‑ Approvals: Designed for power‑generation Mark VIe turbine‑control‑system applications
Product Specifications
‑ Form Factor: Populated VME‑format WETA terminal‑assembly backplane board ‑ Signal Interface: Field‑wiring screw terminals, IONet Ethernet, internal backplane bus for I/O packs ‑ Compatibility: Works with all standard Mark VIe I/O packs, UCSB series main controllers ‑ Diagnostic: On‑board status monitoring for power‑supply and communication‑link faults ‑ Cooling: Natural convection inside turbine‑control cabinet ‑ Weight: Approx 1.2 kg ‑ Maintenance: Direct spare‑backplane replacement for WETA‑rack‑site repair
Function
IS215WETAH1C (109W6503P001) receives field‑sensor and field‑device signals through screw‑terminal field wiring, routes these signals to corresponding plug‑in Mark VIe I/O packs via internal rack backplane. It supplies 28 VDC operating power for inserted I/O packs. Dual IONet Ethernet links transmit real‑time I/O data and diagnostic information to the Mark VIe UCSB main controller. Built‑in monitoring circuits supervise power‑supply health and communication‑link status. It implements reliable distributed remote‑I/O signal‑termination and communication for large‑scale gas‑turbine and steam‑turbine control systems.
Purpose
Serve as WETA‑rack main terminal‑backplane for Mark VIe distributed‑I/O system. Replace defective IS215WETAH1C boards to restore field‑signal termination, power‑distribution and IONet communication functions for remote‑I/O racks. Used for spare‑part stocking and maintenance of legacy GE Mark VIe power‑generation turbine‑control installations.
Application Fields
Gas‑turbine and steam‑turbine power‑generation units, combined‑cycle power plants, refinery prime‑mover control systems, offshore‑platform turbine‑control cabinets, industrial‑plant heavy‑duty gen‑set control systems, legacy GE Mark VIe turbine‑control‑system maintenance and retrofit projects.
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