Switch 4400 — Front View Detail 15
10BASE-T/
100BASE-TX Ports
The Switch has 24 or 48 auto-negotiating 10BASE-T/100BASE-TX ports
configured as Auto MDIX (cross-over). These ports automatically provide
the appropriate connection. Alternatively, you can manually set these
ports to 10BASE-T half duplex, 10BASE-T full duplex, 100BASE-TX half
duplex or 100BASE-TX full duplex. The maximum segment length is
100 m (328 ft) over Category 5 twisted pair cable.
LEDs Table 5 lists LEDs visible on the front of the Switch, and how to read their
status according to color. For information on using the LEDs for problem
solving, see “Solving Problems Indicated by LEDs” on page 46.
Ta b le 5
LED behavior
LED Color Indicates
Port Status LEDs
Packet Green Full duplex packets are being transmitted/received on the
port.
Yellow Half duplex packets are being transmitted/received on the
port.
Off No packets are being transmitted/received on the port.
Status Green A high speed (100 Mbps) link is present, and the port is
enabled.
Green flashing A high speed (100 Mbps) link is present, but the port is
disabled.
Yellow A low speed (10 Mbps) link is present, and the port is
enabled.
Yellow flashing A low speed (10 Mbps) link is present, but the port is
disabled.
Off No link is present.
Module Packet LEDs
Green Full duplex activity being received or transmitted
Yellow Half duplex activity being received or transmitted
Off No activity
Module Status LEDs
Green The Module is installed and supported. The Link Status has
been determined, and the port is enabled.
Green flashing The Module is installed and supported. The Link Status has
been determined, but the port is disabled.
(continued)
17204ua.book Page 15 Monday, August 13, 2001 11:28 AM
