Chapter 2

Blinking LED in Suspend Mode:

While in Suspend mode, the LED light on the front panel of your computer will flash. Suspend mode is entered by pressing the Green Override Power Button on your ATX case, or by enabling the Power Management and Suspend Mode options in BIOS's Power Management menu. (See section 3.5)

Poly-fuse Over Current Protection:

The poly-fuse protects the system from dangerous voltages that the system might be exposed to via keyboards or USB connectors. In case of such an exposure, the poly-fuse will immediately be disconnected from the circuit just like a normal fuse. After being disconnected for a certain period of time, the poly-fuse will return to its normal state. Then the keyboard or USB connector can function properly again. Unlike conventional fuses, the poly-fuse does not have to be replaced, relieving the user from such inconveniences.

CN1A (Front Panel Connector):

1. PWR-SW(Over-ride Power Button Connector):

The power button on the ATX chassis can be used as a normal power switch as well as a device to activate Advanced Power Management Suspend mode. This is a power-saving mode when the computer is idle for long periods of time. The Soft-OFF by PWR-BTTN function in BIOS's Power Management Setup menu must be set to [Delay 4 Sec.] to activate this function.

When the Soft-OFF by PWR-BTTN function is enabled, pressing the power button rapidly will switch the system to Suspend mode. Any occurrence of external activities such as pressing a key on the keyboard or moving the mouse will bring the system back to Full-On. Pushing the button while in Full-On mode for more than [4 seconds] will switch the system completely off. See Over-ride Power

8

Page 11 Page 13
Page 12
Image 12
Intel 9EJL4 manual Blinking LED in Suspend Mode, Poly-fuse Over Current Protection, CN1A Front Panel Connector
Page 11 Page 13

9EJL4 specifications

The Intel 9EJL4 is a compact and versatile embedded processor specifically designed for edge computing applications. Based on Intel's cutting-edge architecture, it offers a unique blend of power efficiency, performance, and connectivity options, making it ideal for a variety of industries, including industrial automation, retail, healthcare, and smart cities.

One of the standout features of the 9EJL4 is its support for Intel’s Advanced Vector Extensions (AVX), which enhances its capability to handle complex calculations and data-heavy workloads efficiently. With multiple cores and threads, this processor can manage parallel tasks effectively, ensuring smooth operation in multi-threaded scenarios.

Power consumption is a critical consideration for embedded systems, and the Intel 9EJL4 excels in this aspect. It operates within an efficient thermal envelope, allowing it to maintain optimal performance while minimizing power draw. This makes it suitable for applications where power sourcing is limited or battery life is a crucial factor.

The architecture of the 9EJL4 supports Intel’s integrated graphics, which provide robust visual performance without the need for a dedicated GPU. This feature is particularly beneficial for applications requiring video processing or graphical interfaces, as it allows for seamless multimedia experiences.

Connectivity is another important aspect of the Intel 9EJL4. It supports various I/O interfaces, including USB, SATA, and PCIe, facilitating seamless integration with existing systems and enabling communication with a wide range of devices. Additionally, with support for high-speed network connectivity options such as Ethernet, the 9EJL4 can be part of IoT networks, enabling real-time data processing and analysis.

Furthermore, the processor is built with durability in mind, characterized by a robust design that can operate in various environmental conditions. This makes it suitable for deployment in harsh settings where other components might fail.

In summary, the Intel 9EJL4 stands out in the embedded processing market due to its performance, energy efficiency, and comprehensive connectivity options. These characteristics make it an excellent choice for developers looking to build reliable, high-performance systems tailored for modern applications across diverse industries.
Top Page Image Contents