User manual TRENDNET TE100-H24R

[. . . ] Describes all LED indicators on the hub's front panel. Understanding these indicators is essential to effectively using the hub. Provides information on connecting to the hub's twisted-pair, stacking hubs, and linking with other 100BASE-TX hubs. Provides specifications on the cables and connectors used with the hubs. [. . . ] Uplink Ports The Uplink port is an MDI port, which means you can connect the hub (or hub stack) to another device with MDI-X ports us- 6 Unpacking and Setup Fast Ethernet Stackable Hubs User's Guide ing an ordinary straight-through cable, making a crossover cable unnecessary. In 24-port model, port 12 and the Uplink-1 port, port 24 and the Uplink-2 is really the same port, except that their pinouts are different. Do not use both Port 12 and the Uplink-1 port, Port 24 and the Uplink-2 port at the same time. In 16-port model, port 16 and the Uplink port, is really the same port, except that their pinouts are different. Do not use both Port 16 and the Uplink port at the same time. Rear Panel Unpacking and Setup 7 Fast Ethernet Stackable Hubs User's Guide Module Slots Used to install module options for 100BASE-FX connection. Daisy-Chain IN Port When cascading a set of stackable Fast Ethernet hubs, this port should be connected to the Daisy-Chain OUT port of the previous hub in the stack (usually placed immediately above it). A cascade of four hubs can be created in this way. The first and last hubs in the stack use only one of the daisy-chain ports, while the others use both. Daisy-Chain OUT Port Works in conjunction with the Daisy-Chain IN Port (see above). Connect this port to the Daisy-Chain IN Port of the next hub in the stack (usually placed immediately below it), using the enclosed daisy-chain cable. AC Power Connector For the power cord. 8 Unpacking and Setup Fast Ethernet Stackable Hubs User's Guide Installing the Hub Installation The site where you install the hub stack may greatly affect its performance. When installing, consider the following pointers: Install the hub stack in a fairly cool and dry place. See Appendix B, Specifications, for the acceptable temperature and humidity operating ranges. Install the hub stack in a site free from strong electromagnetic field generators (such as motors), vibration, dust, and direct exposure to sunlight. Leave at least 10cm of space at the front and rear of the hub for ventilation. Install the hub on a sturdy, level surface that can support its weight, or in an EIA standard-size equipment rack. For information on rack installation, see the next section, Rack Mounting. When installing the hub stack on a level surface, attach the rubber feet to the bottom of each device. The rubber feet cushion the hub and protect the hub case from scratching. Unpacking and Setup 9 Fast Ethernet Stackable Hubs User's Guide Rack Mounting The hub can be mounted in an EIA standard-size, 19-inch rack, which can be placed in a wiring closet with other equipment. Attach the mounting brackets at the hub's front panel (one on each side), and secure them with the provided screws. Then, use screws provided with the equipment rack to mount each hub in the rack. 10 Unpacking and Setup Fast Ethernet Stackable Hubs User's Guide 3 3 UNDERSTANDING INDICATORS Before connecting network devices to the hub, take a few minutes to look over this section and familiarize you with the front panel LED indicators of your stackable Fast Ethernet hub, depicted below. Understanding Indicators 11 Fast Ethernet Stackable Hubs User's Guide Hub State Indicators Power Indicator This indicator lights green when the hub is receiving power; otherwise, it is off. 100M Activity This indicators indicate data packet on the respective 100Mbps Fast Ethernet segments will blink green. 100M Collision This indicators indicate data collisions on the respective 100Mbps Fast Ethernet segments of the hub. [. . . ] Using a screwdriver, undo the two screws and remove the dust cover on the module slot. Holding the module component-side up and connector-side in, gently slide the module along the guides and seat it in the internal connector. Using a screwdriver, replace the two screws and tighten until snug. 20 Making Connections Fast Ethernet Stackable Hubs User's Guide We recommend that you retain the dust cover in case you need to remove the module for an extended period sometime in the future. Making Connections 21 Fast Ethernet Stackable Hubs User's Guide A 5 CABLES AND CONNECTORS 100BASE-TX Fast Ethernet Cable and Connectors Cable characteristics: 0. 4 to 0. 6 mm (22 to 26 AWG) 4pair (only two pairs/four wires are used for 100BASETX); Category 5 unshielded twisted-pair or EIA/TIA568 compliant, 100-ohm shielded twisted-pair Maximum segment length: 100 meters Maximum network diameter: 205 meters Connectors: RJ-45 Cables and Connectors 23 Fast Ethernet Stackable Hubs User's Guide Straight Twisted-Pair Cable Pinouts Contact MDI-X Signal MDI Signal 1 RD+ (receive) TD+ (transmit) 2 RD- (receive) TD- (transmit) 3 TD+ (transmit) RD+ (receive) 4 Not used Not used 5 Not used Not used 6 TD- (transmit) RD- (receive) 7 Not used Not used 8 Not used Not used 24 Cables and Connectors Fast Ethernet Stackable Hubs User's Guide Crossover Cables When cascading or connecting the hub to another switch, bridge, or hub through the UTP port, a modified crossover cable is necessary. With a crossover cable, two pairs of wires are switched at one connector end. [. . . ]