Model: IS420UCSBH4A
Ambient temperature range: -30 to + 65 °C
Controller type: LS2100e, EX2100e, and Mark VIe
Classification: UL E207685 for Class I, Zone 2, Group A, B, C and D

Product description
The IS420UCSBH4A controller is another UCSB controller produced by General Electric for the Mark VIe series. The controller is described as being able to work in the EX2100e, LS2100e and Mark VIe series, which run on 1066 MHz EP80579 Intel processors. The EP80579 processor is designed to help applications that require high reliability and speed. This model is similar to previous UCSB controllers, with the exception of the processors mentioned above, the controllers all use the same processor type, but run at different frequencies..

Specific functions and types of controllers include:

The IS420UCSBH4A ensures the normal operation and efficient performance of the computer system by controlling the hardware operation.
Manage various software programs in computer systems, including operating systems, application software, drivers, etc., load, unload, schedule and optimize software to ensure the effective execution of software and rational use of resources.
Receive a variety of instructions and data input by the user, and pass it to the corresponding software or hardware equipment for processing, but also the computer system processing results can be output to the user, IS420UCSBH4A to achieve user interaction with the computer system.
Provides interfaces to interact with external devices and systems so that different hardware and software can communicate and collaborate effectively.
Monitor and manage the various parts of the computer system to ensure their safe and reliable operation.
The variety of controllers is very rich, such as:

IS420UCSBH4A combined logic controller (also known as hard-wired controller) : composed of logic circuit, completely rely on hardware to achieve the function of instructions, design trouble but fast execution, widely used in computer structures such as RISC.
Microprogram controller: easy to design, simple structure, easy to modify or expand, but need to execute a microprogram.
MCU controller: a micro electronic device, often used in the embedded control of small electronic devices, with small size, low power consumption, fast response and so on.