Dynex DX-EHB4 User Manual
DX-EHB4.fm Page 1 Friday, April 29, 2005 4:14 PM
10Base-T Ethernet Hub
Concentrateur Ethernet 10Base-T
Concentrador 10Base-T Ethernet
DX-EHB4
USER GUIDE • GUIDE DE L’UTILISATEUR • GUÍA DEL USUARIO
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Dynex DX-EHB4 Network Hub
Dynex DX-EHB4 Network Hub
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10Base-T Ethernet Hub
This hub features plug-and-play connections and easy installation.
Setting up your hub
To set up your network hub:
1 Place your hub in a well-ventilated area.
2 Don’t place heavy objects on the hub.
3 Connect the AC power adapter to the hub, then plug the adapter into an
AC power outlet.
4 Connect the network cables as shown in the following diagram:
Interpreting the LEDs
Power —Indicates that the hub has power.
Collision—Blinking indicates that data collisions are occurring on the network.
Collisions occur when two networked computers send data at the same time. If
this LED blinks frequently, it means network traffic is heavy, and you should consider adding a bridge or hub to reduce collisions.
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Dynex DX-EHB4 Network Hub
Link/Rx—Indicates when the port has connected to the network (on) or when
the port is receiving data (blinking). Each port has one Link/Rx LED.
Troubleshooting
If the Link/Rx port is connected but the LED is off, make sure that:
• Power for both the hub and the connected node is on.
• The network cable is not loose.
• The network cable is the correct type.
• The network cable is not broken.
• The network cable’s RJ-45 connectors have been wired correctly.
• The connected node’s network adapter is working.
Specifications
Data transfer rate..............................................................................10 Mbps
Protocol ...........................................................................................CSMA/CD
Network type...................................................................................10Base-T
Topology .................................................................................................. Star
Power requirement.................................................................................9VAC
Power consumption.................................................................5 W maximum
Operating temperature...........................................32° to 104°F (0° to 40° C)
Humidity tolerance................................................5%-95% non-condensing
C
ABLE AND CONNECTOR REQUIRED SPECIFICATIONS
Cable type.................................................................................10Base-T UTP
Cable characteristics...............................................0.4-0.6 mm (22-26 AWG)
8-wire (only four wires are used for 10Base-T)
Maximum segment length..................................................................100 m
Connectors.............................................................................................RJ-45
© 2005 Dynex. DYNEX and the DYNEX logo are trademarks of Best Buy Enterprise
Services, Inc. Other brands and product names are trademarks or registered trademarks of their respective holders. Specifications and features are subject to
change without notice or obligation.
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