Lan led indicators, Network cable connection, Twisted-pair cable – Asus M8 User Manual
Page 61: Lan led summary
61
4. Using
LAN LED Indicators
Speed (100M) Indicator: This green LED monitors connection speeds. The LED lights when
connection is made to a 100Base-TX (100Mbit/sec) host. If not lit, the network connection is oper-
ating at 10Base-T (10Mbits/sec). When making a connection to a switching hub that supports
100Base-TX full-duplex mode (200Mbit/sec), the LED will also light green.
Activity (ACT) Indicator: This orange LED monitors network activity. The LED lights when
there are network packets sent or received through the RJ-45 port. The rate of flashing is propor-
tional to the amount of network traffic. If this is OFF, the computer is not sending or receiving
network data.
Link (LNK) Indicator: This green LED monitors 10Base-T and 100Base-TX connections. The
LED lights to indicate a successful network connection, and remains steady if the connection is
stable. If this indicator is OFF, the network cable between the hub and the Notebook PC may be
damaged, the driver configuration may be faulty, or the network cable is not connected properly.
LAN LED Summary
LED
Indication
Meaning
Speed
ON (green)
Network connection operating at 100Mbps (half- or full-duplex).
(100M)
OFF
Network connection at 10Mbps.
Activity
ON/Flashing
The interface is sending or receiving network data. The frequency
(ACT)
(orange)
of the flashes varies with the amount of network traffic.
OFF
The interface is not sending or receiving network data.
Link
ON (green)
The interface and hub have acknowledge a connection; the link
(LNK)
between the hub and interface is good.
OFF
The cable connection between the hub and interface is faulty; or
you have a driver configuration problem.
Network Cable Connection
Connect a single network cable to the RJ-45 connector. For 100BASE-TX, your
network cable must be category 5 (not category 3), twisted-pair wiring with RJ-45
connectors. If you plan on running the interface at 100 Mbps, it must be connected
to a 100BASE-TX hub (not a 100BASE-T4 hub). For 10Base-T, use category 3, 4,
or 5 twisted-pair wiring.
Twisted-Pair Cable
The cable used to connect the Ethernet card to a host (generally a Hub) is called a straight-through
Twisted Pair Ethernet (TPE). The end connectors are called RJ-45 connectors, which are not com-
patible with the standard RJ-11 telephone connectors. If connecting two computers together with-
out a hub in between, a crossover twisted-pair is required.
1
8
234567
HUB RJ45 Connector