Description
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3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | IS220PAICH2A |
| Functional Acronym | PAIC |
| Product Type | Analog I/O Pack |
| System Compatibility | GE Mark VIe / Mark VIeS |
| Analog Inputs | 10 channels |
| Input Configuration | First 8: 5 V / 10 V / 4-20 mA; Last 2: 1 mA or 4-20 mA |
| Analog Outputs | 2 current loop outputs (0–20 mA; Output 1 supports up to 200 mA) |
| Communication | Dual RJ-45 Ethernet (IONet) |
| Terminal Connection | DC-37 pin connector to terminal board |
| Protection | Conformal coating (typical) |
4. Product Introduction (Anti-Template)
The GE IS220PAICH2A is an Analog I/O Pack (PAIC) designed for the Mark VIe and Mark VIeS turbine control systems. It provides the electrical interface between one or two I/O Ethernet networks and an analog terminal board. The pack contains a processor board and dedicated analog acquisition circuitry.
It supports ten analog inputs: the first eight can be configured for voltage (5 V or 10 V) or 4-20 mA current loop signals, while the final two support 1 mA or 4-20 mA inputs. Load resistors for current inputs reside on the terminal board; the pack senses the voltage across those resistors. Two current-loop outputs are provided (0–20 mA range), with the first output capable of delivering up to 200 mA when the additional hardware is enabled. The module mounts directly on the terminal board via a DC-37 connector and communicates with the controller over dual RJ-45 Ethernet ports. It is used for precise analog signal acquisition and output in gas and steam turbine control applications.
IS220PAICH2A
IS220PAICH2A
IS220PAICH2A
IS220PAICH2A
IS220PAICH2A
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full part number (IS220PAICH2A), revision level, conformal coating status, and connector condition. Photograph all labels.
- Functional Testing – Mount on a compatible terminal board where possible, apply power, and verify status LEDs and basic Ethernet link. Full validation requires field signals and the host controller.
- QA & Packaging – Protect the DC-37 and Ethernet connectors, clean the module, and pack in anti-static protective packaging.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial turbine control I/O modules. Packaging must protect against electrostatic discharge; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Terminal Board Compatibility – The pack must be paired with the correct analog terminal board. Incorrect pairing prevents proper signal conditioning and load-resistor sensing.
Input Configuration – Confirm voltage versus current settings for each channel. Misconfiguration produces incorrect readings.
Output Current Rating – Only the first output supports the extended 200 mA capability. Do not exceed rated current on either channel.
Network Redundancy – Dual Ethernet ports support redundant IONet. Verify cabling and network configuration match the system design (simplex or TMR).
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified IS220PAICH2A?
As a specialized Mark VIe analog I/O pack, availability depends on surplus stock. Typical lead time after verification is 5–15 business days plus standard shipping.
What is the primary function of this module?
It is an Analog I/O Pack that interfaces analog terminal boards with the Mark VIe IONet Ethernet network.
How many analog inputs does it have?
10 configurable analog inputs.
What output current capability does it offer?
Two 0–20 mA outputs; the first output can deliver up to 200 mA.
What system is it used with?
GE Mark VIe and Mark VIeS turbine control systems.
Is the module still in production?
Mark VIe remains an active platform. Specific PAIC revisions are available through GE channels and surplus specialists depending on current production status.
What should be confirmed before ordering a replacement?
Exact part number and revision (IS220PAICH2A), compatible terminal board type, required input/output configuration, and system redundancy (simplex or TMR).
