3Com Router 5000 and Router 6000 v2.41

Chapter 3

Module Guide

Multifunctional Interface Modules (Router 5000)

zIf the port on the network device to be connected has a 120-ohm port, use a 75-ohm to 120-ohm adapter, or use a 120-ohm cable instead.

2)When using a 120-ohm balanced twisted pair cable,

zConnect its RJ-45 connector to the RJ-45 port on the device to be connected directly, if cable extension is not needed.

zConnect its RJ-45 connector to a network interface connector and then the other end of the network interface connector to the network device to be connected through a 120-ohm E1 trunk cable, if cable extension is needed.

 

 

 

 

DB-15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RJ-45

 

RJ-45

Network

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Router

 

 

 

 

 

 

 

 

 

 

 

 

 

 

devices such

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

as DDN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Network interface connector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120-ohm balanced twisted pair

 

120-ohm E1 trunk cable

Figure 3-46Extending an 120-ohm balanced twisted pair cable

Step 4: Power on the Router, and check the LEDs of the corresponding slot on the

front panel: ON means that the MIM is operating normally and OFF means that the POST of the MIM has failed. In the latter case, please contact your agent;

Step 5: Check the behavior of the LINK LED on the module panel. It is OFF when fault has occurred on the link and signal is out of synchronization. In this case, please check the link.

II. Connecting interface cable of 4-port

Step 1: Select the appropriate cable and cable according to type of the port on the remote device, and set DIP switches of module correctly;

z

z

If the resistance of the port on the device to be connected is 75-ohm, select a 75-ohm E1 non-balanced coaxial cable and a 75-ohm 4E1 conversion cable, and set all the DIP switches on the 4E1/4E1-F module to “ON” (that is, the port resistance is 75-ohm).

If the resistance of the port on the device to be connected is 120-ohm, select a 120-ohm balanced twisted pair cable and a 120-ohm conversion cable, and set all the DIP switches on the module to “OFF” (that is, the port resistance is 120-ohm).

Step 2: Plug the DB-25 connector of the conversion cable into a DB-25 port on or module, and tighten the screws;

Step 3: Connect the DB-15 connector of the conversion cable to the cable, making sure of wire sequence of the connector;

3-40

Page 90 Page 92
Page 91
Image 91
3Com 3C13701, 3C13759, 3C13880, 3C13840, 3C13751 manual II. Connecting interface cable of 4-port
Page 90 Page 92

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.
Top Page Image Contents