Intel 140T Manual De Usuario
8
Media Requirements
Incorrect cabling is often the cause of network configuration problems.
Read the next two pages if you’re unsure of your requirements.
Read the next two pages if you’re unsure of your requirements.
100Base-TX
The 100Base-TX Fast Ethernet specification requires that you use
CAT 5 UTP cabling to operate at 100Mbps. If you use lower grade cabling
(CAT 3 or CAT 4), you may get a connection, but will soon experience data
loss or slow performance. You’re limited to 100 meters between any two
devices.
CAT 5 UTP cabling to operate at 100Mbps. If you use lower grade cabling
(CAT 3 or CAT 4), you may get a connection, but will soon experience data
loss or slow performance. You’re limited to 100 meters between any two
devices.
10Base-T
The 10Base-T Ethernet specification allows you to use CAT 3, CAT 4, or
CAT 5 UTP cabling. You’re limited to 100 meters between any two devices.
CAT 5 UTP cabling. You’re limited to 100 meters between any two devices.
Straight-through vs. Crossover Cables
Hub ports are wired MDI-X, so use a straight-through cable when
connecting to a workstation or server (network adapter cards are wired
MDI). For direct connection to another MDI-X port, use the daisy-chain
port or a crossover cable. Here are the pin arrangements for the hub’s
Ethernet jack and the typical RJ-45 connector.
connecting to a workstation or server (network adapter cards are wired
MDI). For direct connection to another MDI-X port, use the daisy-chain
port or a crossover cable. Here are the pin arrangements for the hub’s
Ethernet jack and the typical RJ-45 connector.
Testing a cable
A quick way to check a cable’s link integrity is to plug one end into the
daisy-chain port, the other end of into port 2, and check the Activity LEDs
for ports 1 and 2. If the LEDs are on, you have a functioning straight-
through cable.
daisy-chain port, the other end of into port 2, and check the Activity LEDs
for ports 1 and 2. If the LEDs are on, you have a functioning straight-
through cable.
If the LEDs are off, remove the cable from the daisy-chain port and
reinsert it in port 1. If the Activity LEDs for ports 1 and 2 are on, you
have a functioning crossover cable.
reinsert it in port 1. If the Activity LEDs for ports 1 and 2 are on, you
have a functioning crossover cable.
9
10
1
2
Cabling Devices
Pin 1
Pin 8
1
8
Clip
Pin 8
Pin 1