Interface Cable - 3Com 3C13701 Module Manual

3Com Router 5000 and Router 6000 v2.41
Module Guide
Figure 3-22 Router 2-Port 10/100 MIM panel
The following table describes the LEDs on the /Router 2-Port 10/100 MIM panel.
Table 3-11 LEDs on the Router 2-Port 10/100 MIM panel
LED
LINK
ACTIVE

3.5.4 Interface Cable

I. Ethernet cable
As shown in the following figure, the Ethernet cables for FIC-FE cards are category-5
twisted pairs with RJ-45 connectors. Pins 1 and 2 of the interface are used for
transmitting data, and pins 3 and 6 are used for receiving data.
Figure 3-23 Ethernet cable
II. Making Ethernet cables
You can use category 5 twisted-pair cables to make Ethernet cables. A category 5
twisted-pair cable is composed of eight wires that are identified and grouped by colors
of the outer insulator. Usually a solid color wire and a white/solid color wire are
organized in pairs. But sometimes, wires are also paired by color dots.
Ethernet cables fit into two categories: straight-through and crossover.
Straight-through cable: The wires are crimped in the RJ-45 connectors at both
ends in the same order. The cable is used for connecting a terminal device (for
OFF means no link is present; ON means a link is present.
OFF means no data is being transmitted or received on the interface and blinking
means data is being transmitted and/or received.
3-19
Multifunctional Interface Modules (Router 5000)
Description
Chapter 3