Table of Contents
Advertisement
VII. ASUS Network Interface
Pin Definitions
RJ45 Connector
Pin 1
Output Transmit Data +
Pin 2
Output Transmit Data -
Pin 3
Input Receive Data +
Pin 6
Input Receive Data -
Pin 4, 5, 7, 8 (Reserved)
Twisted-Pair Cable
The cable used to connect the Ethernet card to a host (generally a Hub) is called a
straight-through twisted-pair. The end connectors are called RJ45 connectors, which
are not compatible with the standard RJ11 telephone connectors. The illustration shows
a connection between a typical Hub and the ASUS SP98-N's network interface.
Straight-Through Cable
Hub
Card
1 IRD+
1 OTD+
2 IRD-
2 OTD-
3 OTD+ 3 IRD+
6 OTD-
6 IRD-
Glossary
100Base-TX
IEEE's specification for running 100Mbps Ethernet
using twisted-pair cables.
10Base-T
IEEE's specification for running 10Mbps Ethernet
using twisted-pair cables.
10Base2
IEEE's specification for running Ethernet using thick
coaxial cables.
BNC
A connector with a half-twick locking shell typi-
cally used for thin coaxial cables.
Boot ROM
Read-only memory chip that allows a workstation
to communicate with LAN cards or other network
interfaces.
Driver
A program that enables the network operating sys-
tem to communicate with LAN cards.
72
Uplink
1
2
12345678
12345678
12345678
12345678
IEEE 802.3 standard
Standard for the physical and electrical connections
in local area networks developed by the IEEE (In-
stitute of Electrical and Electronics Engineers).
IEEE 802.3u standard
IEEE standard for Local Area Networks (LAN) em-
ploying CSMA/CD as the access method. This stan-
dard is intended to encompass several media types
and techniques for signal rates from 1Mb/s to
100Mb/s.
Interrupt (IRQ)
Signal suspending a program temporarily and trans-
fers control to the operating system when input or
output is required.
LED
Light emitting diode
Mbps
Megabits per second
ASUS SP98-N User's Manual
3
4
5
6
7
8
12345678
12345678
12345678
12345678
12345678
RJ45
LAN_LED
Advertisement
Table of Contents
