10
16- AND 24-PORT STACK HUBS
3. Setup
3.1 Identifying External Components
This section identifies all the major external components of the hub. Both the
front and rear panels are shown, followed by a description of each panel feature.
The indicators are described in detail in
Chapter 4
.
3.1.1 F
RONT
P
ANEL
Figure 3-1. Front panel.
• LED Indicator Panel: See
Chapter 4
for detailed information about each of the
Hub’s LED indicators.
• Twisted-Pair Ports: Use any of these ports to connect stations to the hub. The
ports are MDI-X ports, which means you can use ordinary straight-through
twisted-pair cable to connect the Hub to PCs, workstations, or servers through
these ports. If you need to connect to another device with MDI-X ports, such
as another hub or Ethernet Switch, you should use a crossover cable or
connect using the Uplink port (described below). For more information about
crossover connection, see
Section 6.2
.
• Uplink Ports: The Uplink port is a MDI port, which means you can connect
the Hub (or Hub stack) to another device with MDI-X ports using an ordinary
straight-through cable, making a crossover cable unnecessary.
In the 16-port model, port 16 and the Uplink port are really the same port,
except that their pinouts are different. Do not use both Port 16 and the Uplink
port at the same time.
In the 24-port model, port 12 and the Uplink port are really the same port,
except that their pinouts are different. Do not use both Port 12 and the Uplink
port at the same time.
