Installation guide

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2.9 Making UTP Connections
The 10/100TX ports supports the following connection types and distances:
Network Cables
10BASE-T: 2-pair UTP Cat. 3,4,5 , EIA/TIA-568B 100-ohm
100BASE-TX: 2-pair UTP Cat. 5, EIA/TIA-568B 100-ohm
Link distance: Up to 100 meters
The ports are equipped with auto MDI/MDI-X function and auto-negotiation function for the UTP
connection.
Auto MDI/MDI-X Function
This function allows the port to auto-detect the twisted-pair signals and adapts itself to form a valid
MDI to MDI-X connection with the remote connected device automatically. No matter a straight
through cable or crossover cable is connected, the ports can sense the receiving pair automatically and
configure itself to match the rule for MDI to MDI-X connection. It simplifies the cable installation.
Auto-negotiation Function
The ports are featured with auto-negotiation function and full capability to support connection to :
• Auto-negotiation devices
• Auto-negotiation incapable 10BASE-T devices
• Auto-negotiation incapable 100BASE-TX devices
It performs a negotiation process for the speed and duplex configuration with the connected device
automatically when each time a link is being established. If the connected device is also auto-negotia-
tion capable, both devices will come out the best configuration after negotiation process. If the con-
nected device is incapable in auto-negotiation, the switch will sense the speed and use half duplex for
the connection.