Cabletron Systems NB25 E user manual NB-25E, Connecting The NB20E or NB25E To The Power Source

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INSTALLING THE NB20E OR NB25E BRIDGE

NB-25E

ETHERNET /IEEE 802.3 BRIDGING UNIT

WITH REMOTE LANVIEW® AND MANAGEMENT

ON LINE

STAND BY

BROADCASTFORWARD 1 0

ROOT 1

0

 

XMT

 

 

RCV

 

 

CP

 

 

POK

 

1

PORT

2

Figure 3-4 Bridge Front Panel

3.2.5Connecting The NB20E or NB25E To The Power Source

When installation of the NB20E/NB25E Bridge is complete and the switches have been set, connect the bridge to the power source in the following manner:

1.If you have not already done so, plug the power cord (7, Fig. 3-3) into the power receptacle (6) located on the rear panel of the bridge.

2.Plug the power cord into a wall receptacle.

3.Turn the power switch, located next to the power receptacle, to the on position.

4.Observe the status of the ON-LINE, STANDBY, PORT 1 OK and PORT 2 OK LEDs. These LEDs will flash for approximately 10 seconds as the bridge performs it's internal diagnostics.

When the bridge finishes its internal diagnostics, the LEDs should be in the following conditions:

ON LINE LED lit, indicating that the bridge is receiving power.

PORT 1 OK and PORT 2 OK lit, indicating that the ports have passed the internal loopback test and are now ready for transmission.

STANDBY on or off, depending on the bridge's position in the Spanning Tree Algorithim.

3-5

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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 Location Requirements Chapter Installation Requirements SpecificationsNetwork Requirements General Operating SpecificationsNB20E NB25E PerformanceFront Panel Switches Front Panel IndicatorsRS232 Port AUI Port NB20E/NB25EEnvironmental Requirements Power Supply RequirementsService SafetyPhysical Properties Installing the Bridge Chapter Installing the NB20E or NB25E 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.