Table of Contents
Advertisement
M
N
AKING
ETWORK
4. As a connection is made, check the Activity LED on the switch's front
panel for the corresponding module to be sure that the connection is
valid.
Note: If you use the optional SC-ST Converter, be sure to connect the
converter's Tx (Rx) port to the Rx (Tx) port on the other device.
The 100BASE-FX fiber optic ports operate only at 100 Mbps, full duplex.
You can run a single-mode fiber link up to 20 kilometers (12.43 miles).
However, note that power budget constraints must also be considered
when calculating the maximum cable length for your specific environment.
The 1000BASE-SX and 1000BASE-LX fiber optic ports operate at 1
Gbps full duplex, with auto-negotiation of flow control. The maximum
length for fiber optic cable operating at Gigabit speed will depend on the
fiber type as listed under "10/100 Mbps Ethernet Collision Domain" on
page 4-7
Connectivity Rules
When adding hubs (repeaters) to your network, please follow the
connectivity rules listed in the manuals for these products. However, note
that because switches break up the path for connected devices into
separate collision domains, you should not include the switch or connected
cabling in your calculations for cascade length involving other devices.
1000BASE-T Cable Requirements
All Category 5 UTP cables that are used for 100BASE-TX connections
should also work for 1000BASE-T, providing that all four wire pairs are
connected. However, it is recommended that for all critical connections, or
any new cable installations, Category 5e (enhanced Category 5) or
Category 6 cable should be used. The Category 5e specification includes
test parameters that are only recommendations for Category 5. Therefore,
the first step in preparing existing Category 5 cabling for running
4-6
C
ONNECTIONS
Advertisement
Table of Contents
