Description
- Model & Brand: General Electric (GE) / Speedtronic, IS220PTCCH2A (Mark VIe Thermocouple Input Pack)
- Physical Dimensions: Approximately 16.5 cm x 7.0 cm x 5.0 cm (Standard Mark VIe I/O pack form factor)
- Estimated Shipping Weight: 0.6 kg (Boxed with custom antistatic packaging; Net module weight: ~0.4 kg)
- What’s in the Box: GE Mark VIe IS220PTCCH2A I/O module, integrated dual RJ45 Ethernet ports, 3-pin power connector, DC-37 pin interface connector, and factory conformity sheet (terminal blocks sold separately).

Mounting directly onto the designated terminal board backplane, the IS220PTCCH2A integrates into the distributed Mark VIe Ethernet architecture (IONet) as a dedicated thermocouple data concentration node. This hardware combines a standard processor board with an isolated acquisition sub-assembly, ensuring that raw millivolt signals from high-temperature plant processes are converted cleanly before hitting the central controller.
Turbine and balance-of-plant cabinets rely on this precise layout to minimize long cable runs from field sensors by terminating inputs locally. The pack handles multi-channel thermocouple signals while maintaining galvanic isolation, separating field-level noise from internal control networks.
- Module Architecture: 12-Channel Thermocouple Input Pack with dual-board processor/acquisition design
- Supported Sensor Types: Standard thermocouples (Types E, J, K, S, T) and general mV inputs (-8 mV to +45 mV)
- A/D Conversion Resolution: 16-bit high-resolution digital conversion
- Communication Interfaces: Dual RJ-45 Ethernet ports supporting redundant IONet topologies
- Power Requirements: 28V DC supplied via dedicated 3-pin industrial power connector
- Terminal Connection: DC-37 pin connector mating directly to the terminal board backplane
- Operating Temperature Range: -30°C to +65°C (-22°F to +149°F)
- System Compatibility: GE Mark VIe and Mark VIeS distributed control architectures
Third-party auditors reviewing turbine safety and control cabinets require complete electrical safety and hazardous location documentation.
- Expected Compliance Standards: CE Mark, UL/cUL Listed (Industrial Control Equipment), and ATEX/IECEx Zone 2 classifications for hazardous environments.
- Safety Significance: The UL and ATEX certifications confirm that internal optical and galvanic isolation barriers prevent high-voltage transient faults from traveling along thermocouple wiring into core processor racks.
- Verify specific lot certifications with General Electric or your regional compliance officer before plant integration.
Spare electronic modules sitting dormant in climate-managed stockrooms remain vulnerable to terminal oxidation and microscopic component drift if storage protocols are neglected.
Keep the I/O pack sealed inside its original anti-static (ESD) moisture-barrier bag to protect the backplane pins and surface-mount components from atmospheric sulfur and humidity. Maintain stockroom climate parameters strictly below 60% relative humidity to preserve plastic housing integrity and prevent internal trace corrosion. Inspect the DC-37 connector pins annually for tarnish or mechanical bending before staging the hardware for rack insertion.
Proper slot alignment and cable management protect fragile backplane pins from mechanical stress during installation. Maintain at least 50mm of vertical clearance above and below the module rack to permit unobstructed convection cooling across the internal processor heatsink. Align the module carefully with the terminal board guide rails before pressing the DC-37 connector home to ensure a low-impedance chassis bond.
- What is the proper Harmonized System (HS) tariff code for international shipments of this input pack?
- Industrial control modules and programmable logic parts typically fall under HS Code 8538.90 (Parts suitable for use solely or principally with the controllers of heading 8537). Confirm exact bindings with your customs broker.
- Does this module require software configuration prior to live operation?
- Yes, the module ships with baseline boot firmware; systems engineers must configure the specific hardware tag names and channel parameters using the GE ControlST software suite (ToolboxST) during staging.
- What logistics factors apply regarding the Country of Origin (COO)?
- Manufacturing origins for Mark VIe hardware typically trace to the United States or authorized global GE production facilities; inspect the shipping box label for precise origin data.
- What packaging precautions are mandatory for freight transport?
- Ship the unit inside a double-walled corrugated carton utilizing custom high-density antistatic foam to absorb mechanical drop shocks and protect the connector pins during transit.
- Ship the unit inside a double-walled corrugated carton utilizing custom high-density antistatic foam to absorb mechanical drop shocks and protect the connector pins during transit.



