Manuals / Black Box / Computer Equipment / Network Card

Black Box LE3700A-R2 manual Appendix C Power-Up Tests, Connections and Termination, LED Patterns

Models: LE3700A-R2

1 67
Download 67 pages 60.05 Kb
Page 58
Image 58

APPENDIX C: Power-Up Tests

Appendix C: Power-Up Tests

When you power up the server, it goes through the power-up diagnostics. These diagnostics first blink the LEDs to indicate that the processor can execute firmware correctly and that you can individually address the LEDs.

It then tests RAM, the serial channels, and the Ethernet controller. After this, it checksums the NVR (non-volatile RAM) to verify that the saved data, including its Ethernet address, has not been corrupted. If the checksum test fails, the EPS sets the Ethernet address to 00-00-00-00-00-00 (which is a known invalid address) and resets other server parameters to factory-default values, and calculates a new checksum.

After the EPS completes power-up diagnostics, it will attempt to boot.

If the installed Ethernet address is not valid, as in the case above, the server will enter the boot monitor.

C.1 Connections and Termination

To successfully complete power-up diagnostics, you must have a valid network connection. If you are using the AUI port, you must connect it to a properly terminated transceiver or an AUI cable connected to a thickwire tap.. If you are using 10BASE-T, you must connect the port to a 10BASE-T hub or another host. A faulty transceiver or improperly terminated Ethernet may interfere with the server’s power-up diagnostics. At power-up time, the server does not care if there are any devices connected to the serial or parallel ports; however, if it detects errors, it will attempt to report the problem to a device connected to the serial port.

C.2 LED Patterns

As power-up tests progress, the EPS will output testing status to the LEDs in the following sequence (although they may change too quickly to observer when the tests pass). If a pattern is continuous, then the diagnostics have detected an error during that test. When the EPS detects an error, it writes the error code to the LEDs and then attempts to write a failure message out of port 1 at 9600 baud, 8 bits, no parity, to notify the user. Depending on the nature of the error, this may not be possible. In each of the situations described below, the four LEDs are shown in Table C-1 as being on (•) or off (-).

57

Page 57 Page 59
Page 58
Image 58
Black Box LE3700A-R2 manual Appendix C Power-Up Tests, Connections and Termination, LED Patterns
Page 57 Page 59

LE3700A-R2 specifications

The Black Box LE3700A-R2 is a powerful device designed to meet the demands of modern communication and data management in various environments. This advanced unit combines a multitude of cutting-edge features and technologies, making it an essential tool for professionals in fields such as IT, telecommunications, and multimedia broadcasting.

One of the key features of the Black Box LE3700A-R2 is its robust performance capabilities. It supports multiple data interfaces, allowing for seamless integration with various communication protocols. This versatility ensures that users can easily connect the device to existing systems without the hassle of compatibility issues. Furthermore, its high data throughput rate enables quick and efficient data transfer, which is crucial for time-sensitive applications.

The device is equipped with advanced security protocols designed to protect sensitive information. It employs encryption technologies that safeguard data during transmission, ensuring that unauthorized access is minimized. This focus on security makes it an ideal choice for businesses and organizations that prioritize data integrity and confidentiality.

Another notable characteristic of the LE3700A-R2 is its user-friendly interface. The intuitive design allows for easy navigation and management of the device's functionalities, making it accessible to users of varying expertise. Additionally, comprehensive documentation and support are available, further enhancing the user experience.

In terms of connectivity, the Black Box LE3700A-R2 offers a range of ports, including USB, Ethernet, and Serial connections, catering to a wide array of devices. This flexibility in connectivity options enhances its usability across different applications, from simple data storage to complex network configurations.

The Black Box LE3700A-R2 is also designed with durability in mind. Its robust construction ensures that it can withstand harsh conditions, making it suitable for use in both indoor and outdoor environments. This reliability is crucial for industries that operate in less-than-ideal conditions, such as construction sites or remote locations.

Overall, the Black Box LE3700A-R2 stands out as an exceptional piece of technology that brings together performance, security, and versatility. Its combination of advanced features and user-centric design makes it a valuable asset for professionals seeking to enhance their operational capabilities and ensure the effective management of data and communications in their respective fields.