PRODUCT INFORMATION
Product Overview
The General Electric IS220PDOAH1A is a Digital Output Module for Mark VI / Mark VIe control systems. It provides an electrical interface between Ethernet I/O networks and discrete output terminal boards. The pack contains a common processor board and an application-specific discrete acquisition board. It controls up to 12 relays and processes terminal board diagnostic feedback directly.
The module includes an Intel Celeron 300 MHz processor and 128 MB flash memory. Communication operates across two independent 10/100BaseTX Ethernet ports through standard RJ-45 connectors. Terminal board connection occurs directly through a 37-pin DC-37 connector without external cabling. Inherent soft-start circuits control inrush current when connecting power to the three-pin side connector.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Ethernet | 10BaseT/100BaseTX (RJ-45) |
|---|
| Input Converter Resolution | 16-bit A/D Converter |
|---|
| Input Impedance | 4-20 mA |
|---|
| Inputs | 125 V dc, 15A |
|---|
| Memory | 128 MB of flash memory |
|---|
| Microprocessor | Intel Celeron 300 MHz |
|---|
| Number of Channels | 24 |
|---|
| Output Converter | 12-bit |
|---|
| Output Fuses 12 fuses | 250 Volt, 15 A |
|---|
| Size | 26.04 cm high x 1.99 cm wide |
|---|
| Temperature Operating | -30 to +65 C |
|---|
| Weight | 2 lbs |
|---|
TECHNICAL INFORMATION
Features
- Dual independent 10/100BaseTX Ethernet ports with RJ-45 connectors.
- High-speed Intel Celeron 300 MHz processor with 128 MB flash memory.
- Direct DC-37 pin interface to discrete relay terminal boards.
- Power connector includes an integrated soft-start inrush current limiter.
- Hardware watchdog timer and on-board reset circuitry.
- Infrared serial communications port for local diagnostic routines.
- Integrated ambient temperature sensor and visual LED status indicators.
TECHNICAL INFORMATION
Applications
- General Electric Mark VIe distributed gas turbine control systems.
- Simplex, Dual, and Triple Modular Redundant discrete output control.
- Direct actuation of electromagnetic and solid-state interposing relay boards.
TECHNICAL INFORMATION
Connections / Interfaces
- Dual RJ-45 10BaseT/100BaseTX Ethernet ports.
- Direct DC-37 pin female discrete terminal board connector.
- Three-pin side connector for module power input.
- Local infrared serial communications diagnostic interface.
TECHNICAL INFORMATION
Installation Guidelines
- Plug the module directly into the DC-37 connector on the terminal board.
- Secure the module using threaded studs adjacent to the Ethernet ports.
- Adjust the bracket position to prevent right-angle mechanical force on connectors.
- Connect one or two RJ-45 Ethernet cables to the network ports.
- Connect the three-pin side power connector using the internal soft-start circuit.
TECHNICAL INFORMATION
Configuration Guidelines
- The internal processor reads terminal board ID data during boot initialization.
- Application code loads automatically from flash memory based on matched hardware IDs.
- Network configuration uses Dynamic Host Configuration Protocol to request IP addresses.
- Logic programming initializes after verified network matching and hardware diagnostics.
TECHNICAL INFORMATION
Compatibility
- The module is compatible with TRLY and SRLY relay output terminal boards.
- It supports electromagnetic relay types TRLYH1B, TRLYH1C, TRLYH1D, and TRLYH1F.
- It operates with solid-state relay boards including type TRLYH1E.
- The unit does not support DIN-rail mounted DRLY boards.
- Supported architectures include Simplex, Dual, and Triple Modular Redundant configurations.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSThe module is compatible with TRLY and SRLY relay output terminal boards. It supports electromagnetic relay types TRLYH1B, TRLYH1C, TRLYH1D, and TRLYH1F. It operates with solid-state relay boards including type TRLYH1E. The unit does not support DIN-rail mounted DRLY boards. Supported architectures include Simplex, Dual, and Triple Modular Redundant configurations.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
Which terminal boards are compatible with the IS220PDOAH1A module?
It is compatible with TRLY and SRLY relay terminal boards. It does not support DRLY DIN-rail boards.
Can the IS220PDOAH1A be inserted while power is applied?
Yes. The module features an internal soft-start circuit that controls inrush current during power connection.
What redundancy architectures does the IS220PDOAH1A support?
It supports Simplex with one pack, Dual with two packs, and TMR with three packs.
