Cabletron Systems NB25 E Chapter Installation Requirements Specifications, Location Requirements

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CHAPTER 2

INSTALLATION REQUIREMENTS/

SPECIFICATIONS

Before you attempt to install Cabletron Systems' NB20E or NB25E Two Port Ethernet Bridge, review the location and hardware requirements outlined in this chapter. Also refer to the operating specifications and environmental requirements that are listed.

All conditions, guidelines, specifications and requirements included in this chapter must be met to ensure satisfactory performance of the NB20E or NB25E. Failure to follow these guidelines will result in unsatisfactory network performance.

2.1LOCATION REQUIREMENTS

Before installing the NB20E or NB25E Two Port Ethernet Bridge, ensure that the location for the bridge meets the following requirements:

•The location must have an unrestricted surface area 21 inches (53.34 cm) wide, and must be at least 18 inches (45.72 cm) deep and 6 inches (15.24 cm) high.

•A standard 3 prong power receptacle must be located within 7 feet (2.13 m) of the site.

•If a shelving unit is to be used, the unit must be able to support 30 pounds (13.6 kg) of static weight.

•The temperature of the location must be maintained between 5° and 40°C. Temperature changes of greater than 10°C per hour must not occur.

2.2NETWORK REQUIREMENTS

When bridging two segments using an NB20E or NB25E Two Port Bridge, you must follow the network guidelines listed below:

•The transceivers to which the NB20E or NB25E will be connected must meet Ethernet Version 1, Version 2, or IEEE 802.3 standards.

•The AUI cables connecting the NB20E or NB25E to the transceivers on the network must be IEEE 802.3 type cables and must not exceed 50 meters in length.

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Contents TWO Port Ethernet Bridges USER’S Manual Page Page FCC Notice Contents Contents Chapter Introduction Using this ManualNB20E and NB25E TWO Port Ethernet Bridge Getting HelpProvides an illustration of the filtering process Bridge Filtering MethodBridging Method Root Bridge Multiple Bridge EnvironmentsMultiple Bridging Environments Primary and Redundant Data PathsRemote Lanview Related Manuals Chapter Installation Requirements Specifications Location RequirementsNetwork Requirements Performance Operating SpecificationsGeneral NB20E NB25EFront Panel Switches Front Panel IndicatorsRS232 Port AUI Port NB20E/NB25EEnvironmental Requirements Power Supply RequirementsSafety ServicePhysical Properties Chapter Installing the NB20E or NB25E Bridge Installing the BridgeUnpacking the NB20E or NB25E Bridge Rack Mount Brackets Installation Installing the Rack Mount BracketsConnecting The Bridge To The Network Cable Support InstallationInstallation Setting The Mode SwitchesNB-25E Connecting The NB20E or NB25E To The Power SourceInstalling the NB20E or NB25E Bridge Installation CHECK-OUT Chapter Testing and LanviewCheck Out Configuration Using LanviewUsing 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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