Cabletron Systems NB20E, NB25 E user manual FCC Notice

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FCC NOTICE

FCC NOTICE

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

WARNING: This equipment uses and generates and can radiate radio frequency energy and if not installed properly and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A digital device pursuant to Subpart J, of Part 15, of the FCC rules., which are designed to provide reasonable protection against such interference in a commercial environment. Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to correct the interference.

If this equipment does cause interference to radio or television, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measure:

•Re-orient the receiving antenna.

•Relocate the antenna with respect to the bridge.

•Move the bridge away from the receiver.

•Plug the bridge into a different outlet so that the bridge and the receiver are on different branch circuits.

If necessary, the user should consult the dealer or an experienced radio/ television technician for additional suggestions. The user may find the following booklet prepared by the Federal Communication Commission helpful:

“How to Identify and Resolve Radio TV Interference Problems”

This booklet is available from the U.S. Government Printing Office, Washington, D.C. 20401- Stock No. 004-000-00345-4

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Contents TWO Port Ethernet Bridges USER’S Manual Page Page FCC Notice Contents Contents Using this Manual Chapter IntroductionGetting Help NB20E and NB25E TWO Port Ethernet BridgeBridge Filtering Method Provides an illustration of the filtering processBridging Method Multiple Bridge Environments Root BridgePrimary and Redundant Data Paths Multiple Bridging EnvironmentsRemote Lanview Related Manuals Location Requirements Chapter Installation Requirements SpecificationsNetwork Requirements Operating Specifications GeneralNB20E NB25E PerformanceFront Panel Indicators Front Panel SwitchesAUI Port NB20E/NB25E RS232 PortPower Supply Requirements Environmental RequirementsService SafetyPhysical Properties Installing the Bridge Chapter Installing the NB20E or NB25E BridgeUnpacking the NB20E or NB25E Bridge Installing the Rack Mount Brackets Rack Mount Brackets InstallationCable Support Installation Connecting The Bridge To The NetworkSetting The Mode Switches InstallationConnecting The NB20E or NB25E To The Power Source NB-25EInstalling the NB20E or NB25E Bridge Chapter Testing and Lanview Installation CHECK-OUTUsing Lanview Check Out ConfigurationUsing the Forward Broadcast Switch Using the Root Switch

NB25 E, NB20E specifications

Cabletron Systems, renowned for its innovative networking solutions in the late 20th century, introduced the NB20E and NB25E series, which made a significant impact in the realm of network management and reliability. These devices were tailored for businesses seeking to enhance their network infrastructure with efficiency and reliability.

The NB20E is known for its robust performance in medium-sized network environments. It operates with an architecture that allows for seamless integration into existing networks, providing essential features that cater to both versatility and scalability. One of its standout functionalities is the support for multiple protocols, enabling organizations to harness various networking standards without the need for extensive alterations to their current setups.

On the other hand, the NB25E extends these capabilities further, offering enhanced throughput and a more comprehensive range of networking options. This makes it particularly suitable for larger businesses with growing networking demands. The utilization of advanced technologies, such as its embedded intelligence, ensures that the NB25E can efficiently manage and direct network traffic, thus minimizing latency and maintaining optimal performance even during peak usage times.

Both models provide essential characteristics such as a modular design, allowing for easy upgrades and maintenance. This modularity not only prolongs the lifespan of the devices but also provides flexibility for future expansions or modifications as business needs evolve. The systems support various interfaces, catering to diverse environments and ensuring easy connectivity to other networking equipment.

Security is a paramount concern in today’s interconnected world, and Cabletron Systems addressed this in the NB20E and NB25E series. The devices are equipped with advanced security features that protect against unauthorized access and ensure data integrity, providing peace of mind for organizations relying on critical data transmissions.

In addition to their technical advantages, both models offer user-friendly management software, making monitoring and control straightforward even for those with limited networking expertise. This ease of use ensures that companies can leverage their investment fully without requiring extensive training or resources.

In summary, the Cabletron Systems NB20E and NB25E series represent a significant leap in networking technology during their era. With advanced features, modular capabilities, and a commitment to security, these devices remain a noteworthy consideration for businesses looking to enhance their networks and prepare for future growth.
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