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This hub delivers standards-based, plug-and-play networking solutions for small businesses, home offices, and low-density workgroups of larger companies. Features The Model EN308TC hub has the following features: • Eight 10BASE-T network ports (RJ-45) that provide 10 megabit per second (Mbps) networking using simple unshielded twisted pair (UTP) wiring • Coaxial BNC backbone support for connecting to an existing Ethernet segment or external transceiver, or for network expansion by connecting multiple hubs together using coaxial cabling • Built-in LED indicators for at-a-glance status checks by networks ports • Uplink port for connecting to other hubs using simple straight-through cables • Front-panel LED indicators to monitor overall hub status • Plug-and-play installation with no software to configure • Complete hub functions including packet retiming, collision detection, preamble regeneration, and fragment extension • Automatic partitioning and reconnection of a port that has excessive collisions or is jabbering • Automatic polarity detection for recognizing and correcting incorrect polarity on the receive pair • Compact design, enabling easy tabletop or rack-mounting installation • Internal power adapter • Limited five-year warranty Model EN308TC Ethernet Hub Installation Guide 9125FA Power cord Mounting kit Model EN308TC hub 100M 10M 8 6 4 3 On = Link Blinking = Activity Normal/Uplink BNC 100-240 VAC, 50-60Hz 0.2A max. 50OHM BNC 50 terminator and BNC T-connector Installation guide, Warranty & Owner Registration Card, and Support Information Card Package Contents 9125FA Power cord Mounting kit Model EN308TC hub 100M 10M 8 6 4 3 On = Link Blinking = Activity Normal/Uplink BNC 100-240 VAC, 50-60Hz 0.2A max. 50OHM BNC 50 terminator and BNC T-connector Installation guide, Warranty & Owner Registration Card, and Support Information Card Package Contents Verify that your package contains the following: • Model EN308TC hub • Mounting kit (for wall installation) • BNC T-connector and BNC 50 . terminator • This installation guide • Warranty & Owner Registration Card • Support Information Card • Power cord Model EN308TC Ethernet Hub Installation Guide Product Illustration Product Illustration Front Panel The front panel of the Model EN308TC hub contains LEDs that monitor the activity status of the hub. For ease of use, the front panel 10BASE-T LEDs that indicate link, receive, or partition activity are duplicated on the 10BASE-T ports on the rear panel. Use the rear panel LEDs when setting up the device, and use the same LEDs on the front panel for monitoring the ports when the hub is positioned in place and set up. 9117FA PWR COL 1 2 3 4 On=Link, Blinking=Receive Partition 5 6 7 8 EN308TCMODEL PORT 10 Mbps Ethernet Hub 8 Rx Partition COL (Collision) LED PWR (Power) LED BNC Partition LED BNC Rx LED10BASE-T LEDs Front Panel LEDs The table below describes the activity of the front panel LEDs. Label Color Activity Description Pwr (Power) Green On Power is supplied to the hub. Col (Collision) Amber Blinking Data collision is occurring on the network. Note that occasional collisions are normal. 10BASE-T LEDs Link/Receive (For ports 1 through 8) Partition Green Amber On Blinking On The link between this port and the connected port is good. There is incoming data on the port. The port is partitioned because of excessive collisions. BNC LEDs Rx Partition Green Green Blinking On There is incoming data on the BNC port. The BNC port is partitioned because of excessive collisions. Model EN308TC Ethernet Hub Installation Guide Rear Panel The rear panel of the Model EN308TC hub has eight RJ-45 10BASE-T ports, a BNC port that you can use to connect to a backbone network or other PCs using thin coaxial cable, and a Normal/Uplink push button. The rear panel also includes a DC power receptacle. 9118FA BNC port Power receptacle 100M 10M 8 7 6 5 4 3 2 1 On = Link Blinking = Activity Normal/Uplink BNC 100-240 VAC, 50-60Hz 0.2A max. Normal/Uplink push button 10BASE-T ports RJ-45 10BASE-T Network Ports with Built-in LEDs Two LEDs—the Link/Rx (Receive) LED and the Part (Partition) LED—are built into each 10BASE-T port. 8724EC Link/Rx (Receive) LED Part (Partition) LED The table below describes the activity of the LEDS. Label Color Activity Description Link/Rx (Located in the top left corner of each 10BASE-T port) Green On Blinking The link between this port and the connected port is good. There is incoming data on the port. Part (Located in the top right corner of each 10BASE-T port) Amber Blinking The port is partitioned because of excessive collisions. Model EN308TC Ethernet Hub Installation Guide Normal/Uplink Push Button for Port 8 The Normal/Uplink push button allows you to select Normal (MDI-X) wiring for direct PC connection. The push button also allows you to select Uplink (MDI) wiring for connection to another hub or to a switch through port 8 on the Model EN308TC hub. This uplink configuration eliminates the need to use a cros...