M
AKING
N
ETWORK
C
ONNECTIONS
4-4
3. If the device is a network card and the switch is in the wiring closet,
attach the other end of the cable segment to a mo dular wall outlet that
is connected to the wiring closet. (See the section “Network Wiring
Connections” on page 4-4) Otherwise, attach the other end to an
available port on the switch.
Make sure each twisted pair cable does not exceed 100 meters (328 ft)
in length.
Note: Avoid using flow control on a port connected to a hub unless it is
actually required to solve a problem. Otherwise back pressure
jamming signals may degrade overall performance for the segment
attached to the hub.
4. As each connection is made, the Link LED (on the switch)
corresponding to each port will light to indicate that th e connection is
valid.
Network Wiring Connections
Today, the punch-down block is an integral part of many newer equipment
racks. It is actually part of the patch panel. Instructions for making
connections in the wiring closet with this type of equip ment follow.
1. Attach one end of a patch ca ble to an available port on the switch, and
the other end to the patch panel.
2. If not already in place, attach one end of a cable segment to the back
of the patch panel where the punch-down block is located, and the
other end to a modular wall outlet.
3. Label the cables to simplify future troubleshooting. See “Cable
Labeling and Connection Records” on page 4-9.