Chapter 3: Installation

3.5.3Connecting a Fiber Optic Cable to an EPIM-F1/F2 or EPIM-F3

When connecting a fiber optic link segment to an EPIM-F1/F2 or EPIM-F3 keep the following in mind:

A full alignment sleeve damages the receive port. SMA 905

!connectors do not need alignment sleeves.

C AUT IO N

When connecting a fiber optic link segment with SMA 906 connectors to an EPIM-F1 with SMA ports, make sure each connector uses half alignment, NOT full alignment sleeves.

When connecting a fiber optic link segment with ST connectors to an EPIM-F2 with ST ports, keep in mind that ST connectors attach to ST ports. Insert the connector into the port with the alignment key on the connector inserted into the alignment slot on the port. Turn the connector to lock it down.

The physical communication link consists of two strands of fiber optic cabling: the Transmit (TX) and the Receive (RX). The Transmit strand from a module port connects to the Receive port of a fiber optic Ethernet device at the other end of the segment (i.e., TX of the applicable port on the module goes to RX of the other fiber optic device). The Receive strand of the applicable port on the module connects to the Transmit port of the fiber optic Ethernet device (i.e., RX of the applicable port on the module goes to TX of the other fiber optic device).

We recommend that you label the fiber optic cables to indicate Receive and Transmit ends. Cabletron Systems prelabels its cable. At one end of the cable, one fiber is labeled 1, and the other fiber is labeled 2. This pattern repeats at the other end of the cable. If you did not purchase your cable from Cabletron Systems, be sure to label your cable in this manner.

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NBR-SERIES Installation Guide

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Cabletron Systems NBR-220, NBR-420, NBR-620 manual Connecting a Fiber Optic Cable to an EPIM-F1/F2 or EPIM-F3

NBR-620, NBR-220, NBR-420 specifications

Cabletron Systems, a well-known name in the networking field, has designed a range of network interface devices including the NBR-620, NBR-220, and NBR-420 models. These devices have become essential components for businesses looking to enhance their network performance and reliability.

The NBR-620, for instance, is a high-performance network bridge/router that specializes in managing network traffic efficiently. It offers a robust set of features such as multiple Ethernet ports, which can support various data rates, including 10/100/1000 Mbps, making it ideal for both small and large enterprises. The NBR-620 supports advanced routing protocols like OSPF and RIP, which optimize data path selection and ensure effective communication across different network segments. Moreover, its built-in firewall capabilities provide an additional layer of security, safeguarding sensitive data from potential threats and unauthorized access.

The NBR-220, on the other hand, is designed for cost-effective solutions without compromising on essential functionalities. This device supports simple plug-and-play installation, making it user-friendly for organizations that may not have an extensive IT infrastructure. The NBR-220 includes features such as VLAN support, allowing for network segmentation and increased security. Its scalability means that it can grow alongside an organization's needs, accommodating future expansions efficiently. The device's ability to support multiple network topologies ensures versatility in deployment, catering to various business requirements.

Finally, the NBR-420 is a versatile networking solution that combines the best elements of the previous models but with enhanced features suitable for demanding enterprise environments. It includes advanced quality of service (QoS) capabilities, ensuring that critical applications receive the bandwidth they require for optimal performance. With support for IPv6, the NBR-420 prepares businesses for the future of networking as the world transitions more towards this next-generation internet protocol. Additionally, its built-in diagnostics tools facilitate easy monitoring and management of network performance.

In summary, Cabletron Systems' NBR-620, NBR-220, and NBR-420 offer diverse solutions tailored for modern networking needs. Each model encompasses unique features and technologies that cater to various business sizes and requirements, focusing on performance, scalability, and security. As businesses continue to evolve in a digital-first world, these devices play a crucial role in facilitating seamless network operations.