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

Page 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

Image 58
Contents Ethernet Print Server FCC Statement Ethernet Print Server NOM Statement Trademarks Used in this Manual Contents Contents Specifications Introduction DescriptionProtocols Supported Additional Software You May NeedEPS Configuration Printing from the host to the EPSIntroduction Installation EPS Network InstallationInstallation Print Server Screen Power-Up Troubleshooting How Do I Know It’s Working?Code in Flash ROMs is Corrupt Host Configuration NetWare Host ConfigurationAvailable Topics Menu Supervisor Options Menu Available Options Print Queue Information Print Server Information Menu TCP/IP Host Configuration 10. Print Server Info/Status ScreenTo the /etc/hosts file, AppleTalk Host Configuration Optional Rtel FunctionalityLAT Host Configuration Can also be set up as Troubleshooting the Printing Process Host Configuration Ethernet Print Server Protocol Overview NetWare TCP/IPAppleTalk LAT Protocol Overview EPS Configuration Server CharacteristicsPasswords EPS ConfigurationPort Characteristics Service SettingsEPS Configuration TCP/IP Configuration NetWare ConfigurationAppleTalk Configuration LAT Configuration Ethernet Print Server UNIX/RTEL Host Setup Reverse Telnet BackgroundEthernet Print Server Installation Procedure Installing the Reverse Telnet SoftwareReverse Telnet for Unsupported Unix Machines Setting up the Rtel Interfaces Creating Rtel Print Queues Queuename server Service Passwd options Deleting Rtel Print Queues Creating Rtel Pseudo-Devices Option Description UsageQueueing with the Rtel Software Rtel Troubleshooting Connecting to a Specific Port Using Telnet Appendix a RJ-45 Adapter Pinout RJ12 Or MMJAppendix a RJ-45 Adapter Pinout Serial Cables Appendix B Cable LimitsNetwork/Cable Limits Parallel CablesConnections and Termination Appendix C Power-Up TestsLED Patterns LED State Meaning Appendix C Power-Up Tests Appendix D Network Logins Appendix D Network Logins Appendix E Quick-Start Guide Appendix E Quick-Start Guide Ethernet Print Server Page Copyright 2002. Black Box Corporation. All rights reserved

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.