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14
Connecting the Switch
PC to DES-1008E
A computer can be connected to the DES-1008E via a two-pair Category 3, 4, 5 UTP/STP Straight-Through or Crossover cable. A computer equipped
with a RJ-45 10/100Mbps port can be connected to any of the eight DES-1008E ports.
The LED indicators for the PC connection depend on the capability of the computer’s Ethernet card. If the LED indicators are not lit after making a
proper connection, check the computer’s Ethernet card, the cable, and the DES-1008E’s conditions and connections.
Hub/Switch to DES-1008E
A hub (10 or 100BASE-TX) can be connected to the DES-1008E via a two-pair Category 3, 4, or 5 UTP/STP Straight-Through or Crossover cable. For
100Mbps operation a Category 5 cable must be used. The connection is accomplished from any port of the hub to any port of the DES-1008E.
DES-1008E to Other Devices
The DES-1008E can be connected to another switch or other devices (routers, bridges, etc.) via a two-pair Category 3, 4, 5 UTP/STP Straight-Through
or Crossover cable. A Category 5 (or higher) cable must be used for 100Mbps operation. The connection can be accomplished from any (MDI-X)
port on the DES-1008E to any of the 10Mbps or 100Mbps (MDI-X) ports on another switch or other devices.
Port Speed & Duplex Mode
After plugging the selected cable to a specic port, the system uses auto-negotiation to determine the transmission mode, auto-detecting the
network speed (10Mbps or 100Mbps) for any new twisted-pair connection.
If the attached device does not support auto-negotiation or has auto-negotiation disabled, an auto-sensing process is initiated to select the speed
and half-duplex mode is selected.