3Com Router 5000 and Router 6000 v2.41

Module Guide

Chapter 4 Flexible Interface Cards (Router 6000)

4.7.6 Connecting the Interface Cable

Caution:

Before you connect a port, read its label carefully; a wrong connection can cause damages to the interface card and even the device.

If outdoor cabling is involved, consider to install a special lightning arrester at the input end of the interface cable for better lightning protection.

I. Connecting the interface cable of the Router 4-Port CE1/PRI FIC

Step 1: Identify type of the E1 cable, and set the DIP switch for the to-be-connected E1/FE1 port correctly.

Step 2: Plug the DB-15 connector of the E1 cable into the E1/FE1 port on the card.

Step 3: Connect the other end of the E1 cable to another device.

1)When using a 75-ohm unbalanced coaxial cable, do the following:

zIf no cable extension is needed, directly connect the BNC connector of the cable to the device.

zIf cable extension is needed, connect the BNC connector of the cable to a coaxial connector, and then connect the other end of the coaxial connector to the device using a 75-ohm E1 trunk cable.

Caution:

When connecting the router to another device using an E1 coaxial cable, make connection with the TX end to the RX end and the RX end to the TX end.

 

 

 

DB-15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BNC

 

 

Network

 

 

 

 

 

 

 

 

 

BNC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Router

 

 

 

 

 

 

 

devices

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

such as DDN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Coaxial connector 75-ohm E1 trunk cable 75-ohm non-balanced coaxial cable

Figure 4-29Extending an E1 75-ohm unbalanced coaxial cable

4-26

Page 142
Image 142
3Com 3C13751, 3C13759, 3C13701, 3C13880, 3C13840 manual 29Extending an E1 75-ohm unbalanced coaxial cable

3C13751, 3C13701, 3C13840, 3C13759, 3C13880 specifications

The 3Com 3C13880 and 3C13840 are notable components within the realm of networking technology, primarily designed for enterprise-grade solutions. These devices belong to the 3Com family, which has long been recognized for its commitment to developing robust networking products tailored to facilitate efficient data transfers and improve connectivity across various platforms.

One of the standout features of the 3C13880 is its high-performance capabilities. This model supports advanced functions such as load balancing and fault tolerance, critical for maintaining optimum network performance in high-demand environments. Additionally, it supports various protocols, including Ethernet and Token Ring, making it versatile and adaptable to existing infrastructure. The device accommodates a wide range of network transmissions, ensuring seamless integration and operation within diverse network ecosystems.

In terms of connectivity, the 3C13880 is equipped with multiple ports, allowing for extensive device interconnectivity. This feature is particularly beneficial in large organization settings, where multiple devices, such as servers and workstations, need to communicate effectively. Coupled with high-speed data transmission rates, this model ensures minimal latency, enhancing overall network efficiency.

On the other hand, the 3C13840 is designed with a focus on cost-efficiency without sacrificing performance. This model provides essential networking features suitable for smaller business environments or those seeking budget-friendly options. It delivers reliable throughput and the ability to support a moderate number of users, making it ideal for small to mid-sized offices.

Both the 3C13880 and 3C13840 incorporate technologies that prioritize security and reliability. Features such as VLAN support and QoS settings help optimize network performance while ensuring the security and integrity of data are maintained. The devices also support management tools that allow administrators to monitor network performance in real time, facilitating quick troubleshooting and enhancing overall network management.

In summary, both the 3Com 3C13880 and 3C13840 devices stand out in networking technology by offering unique features tailored to different organizational needs. While the 3C13880 appeals to enterprises needing high performance and robust capabilities, the 3C13840 provides an accessible option for those requiring effective and budget-conscious networking solutions. The legacy of 3Com continues to be evident in these products, reflecting their innovative approach to addressing the dynamic demands of modern networking.