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2.5 Reset Button
The reset button is used to perform a reset to the switch. It is not used in normal cases and can be used for
diagnostic purpose. If any network hanging problem is suspected, it is useful to push the button to reset the
switch without turning off the power. Check whether the network is recovered.
The button can also be used to restore the software configuration settings to factory default values.
The operations are:
Operation
Press the button more than 5 seconds when power up
Press the button and release during switch operation
2.6 Making UTP Connections
The 10/100/1000 RJ-45 copper ports supports the following connection types and distances:
Network Cables
10BASE-T:
100BASE-TX:
1000BASE-T:
Link distance:
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 any
Ethernet devices. The port 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-negotiation capable, both devices will come out the best configuration after negotiation process. If the
connected device is incapable in auto-negotiation, the switch will sense the speed and use half duplex for
the connection.
Port Configuration Management
For making proper connection to an auto-negotiation incapable device, it is suggested to use port control
function via software management to set forced mode and specify speed and duplex mode which match the
configuration used by the connected device.
2-pair UTP Cat. 3,4,5 , EIA/TIA-568B 100-ohm
2-pair UTP Cat. 5, EIA/TIA-568B 100-ohm
4-pair UTP Cat. 5 or higher (Cat.5e is recommended), EIA/TIA-568B 100-ohm
Up to 100 meters
Function
Restore all factory default settings
Reboot the switch
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