Model: IS220PDOAH1A
Dimensions: 3.25 “high x1.65” wide x4.78 “deep.
Power supply: 28V input with soft start function to control electrical surges in power applications.
Memory: There is flash memory and RAM.
Ethernet port: Two 10BaseT/100BaseTX Ethernet ports support full-duplex communication.
Relay channels: The number is 12.

The IS220PDOAH1A is a discrete output package designed and manufactured by General Electric (GE) for its Mark VIe family of gas turbine control systems. Here are the details:
Functional features:
Interface function: Connect one or two I/O Ethernet cables to the discrete output terminal board through an electrical interface.
Relay control: Up to 12 relays can be controlled and feedback from the terminal boards can be received using electromagnetic relays (with TRLYH1B, C, D and F terminal boards) and solid-state relays (with TRLYH1E boards).
Diagnostic function: LED indicator to provide visual diagnosis, infrared port for local diagnostic serial communication.

Technical parameters:
Dimensions: 3.25 “high x1.65” wide x4.78 “deep.
Power supply: 28V input with soft start function to control electrical surges in power applications.
Memory: There is flash memory and RAM.
Ethernet port: Two 10BaseT/100BaseTX Ethernet ports support full-duplex communication.
Relay channels: The number is 12.
Compatibility: Works with six different types of discrete (relay) output terminal boards, including TRLY and SRLY boards, but not DRLY boards mounted on DIN rails.

Installation and operation:
Installation: Plug simplex PDOA I/O packages or three TMR PDOA I/O packages directly into the terminal board connector, secure using the studs next to the Ethernet port, connect the Ethernet cable according to the system configuration, and plug into the power connector for power supply.
Operation: After power-on, the soft start circuit makes the processor board voltage rise, the local power supply starts in sequence, the processor completes the self-test and loads the application code, reads the board ID information, establishes Ethernet communication, and then programs the onboard logic to make the acquisition board work. During power-on, all outputs are disabled by default until an internal self-test is completed to ensure that the relay remains disconnected during power-on and initialization.
IS220PDOAH1A is widely used in the industrial field, especially in the manufacturing, energy and transportation fields, can be used to control motors, heaters, lighting equipment, etc., can also be used for the control and protection of solar and wind energy systems, as well as railway signal systems, electric vehicle control.