วันอังคารที่ 11 พฤษภาคม พ.ศ. 2553

DES-1005D

>>> DES-1005D Setup
The setup of the DES-1005D can be performed using the following steps:
- The power outlet should be within 1.82 meters (6 feet) of the Switch.
- Visually inspect the DC power jack and make sure that it is fully secured to the power adapter.
- Do not cover the ventilation holes on the sides of the Switch, and make sure there is adequate ventilation around it.
- Do not place heavy objects on the switch.

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>>> CONNECTING THE DES-1005D

1.Computer to DES-1005D
A computer can be connected to the DES-1005D/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-1005D/
The LED indicators for the computer 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, or the DES-1005D/ DSS-8+’s conditions
and connections.

2.Hub to DES-1005D/ DSS-8+
A hub (10BASE-T or 100BASE-TX) can be connected to the DES-
1005D/ DSS-8+ 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-1008D/ DSS-8+.

3. DES-1005D/ DSS-5+ to other devices
The DES-1005D/ DSS-5+ 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 cable must be used
for 100Mbps operation. The connection can be accomplished from any
(MDI-X) port on the DES-1005D/ DSS-5+ to any of the 10Mbps or
100Mbps (MDI-X) ports on another switch or other devices.

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Port Speed & Duplex Mode
After plugging the selected cable to a specific port, the system uses autonegotiation
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 autonegotiation
disabled, an auto-sensing process is initiated to select the
speed and half-duplex mode is selected.

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