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2.6 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 Function
Press the button more than 5 seconds when power up Restore factory default settings
Press the button and release during switch operation Reboot the switch
2.7 Making UTP Connections
The 10/100/1000 RJ-45 copper 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
1000BASE-T: 4-pair UTP Cat. 5 or higher (Cat.5e is recommended), EIA/TIA-568B 100-ohm
Link distance: Up to 100 meters
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 con-
trol function via software management to set forced mode and specify speed and duplex mode which
match the configuration used by the connected device.