0BASE-T Ethernet Mini Hubs Models DE-809TP DE-809TC User’s Guide Fifth Edition (Jan. 1999) 6DE809TP..
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Table of Contents 1 INTRODUCTION...................................................................... 1 2 INSTALLATION ....................................................................... 5 MOUNTING HUB ON WALL ........................................................... 5 CONNECTING AC POWER ADAPTER .............................................. 7 CONNECTING UTP SEGMENTS ...................................................... 8 CONNECTING THIN COAXIAL SEGMENT.......................................
10BASE-T Ethernet Mini Hubs User’s Guide 1 Introduction This User’s Guide tells you how to install the following 10BASE-T Ethernet Mini Hub models: ♦ ♦ DE-809TP (9 UTP ports) DE-809TC (8 UTP ports & 1 BNC port) Port connectors on back panel of Mini Hubs Introduction 1
The Mini Hubs are the palm-size compact 10BASE-T hubs that offer all the features of standard equipment rack-mount 10BASE-T hubs, including automatic port participation, collision detection, diagnostic LED report, and hub cascading. Following is a summary of the features of the Mini Hubs: ♦ 9-port hubs. Each Mini Hub provides nine ports. Model DE809TP provides nine UTP ports (nine RJ-45 connectors); one of these ports can be used for either 10BASE-T connection or cascading with another Mini Hub.
10BASE-T Ethernet Mini Hubs User’s Guide Introduction 3
10BASE-T Ethernet Mini Hubs User’s Guide 2 Installation Mounting Hub on Wall The Mini Hub can be mounted on a wall. Four mounting slots are provided on the bottom side of the hub for this purpose. Make sure that the front panel is exposed to allow you to view the LEDs at work.
Distance: 155.6 mm / 6.13 in. (top diagram) Distance: 70.5 mm/2.74 in.
10BASE-T Ethernet Mini Hubs User’s Guide Connecting AC Power Adapter The Mini Hub uses an external AC power adapter. There is no power switch. The hub is powered on once the AC power adapter is connected to an AC power source and the hub’s AC power socket.
&DXWLRQã 8VH $& SRZHU DGDSWHU ZLWK FRUUHFW $& YROWDJH RQO\ï Connecting UTP Segments This section describes the connection procedure from a UTP port of the hub to a UTP port of a station, bridge , router, and other Ethernet devices. It does not describe the connection to a 10BASET hub. The UTP cable extended from a UTP port is called a UTP segment, and can be up to 100 meters long.
10BASE-T Ethernet Mini Hubs User’s Guide Note that, for Mini Hub model DE-809TP, UTP port labeled “9” must be in the Normal position in order to be connectable to a station, bridge or router. To connect this port to a UTP port of a 10BASE-T hub, the port must be in the Uplink position (see section Cascading Hubs Through UTP Cable in this chapter for details). The button to the right of the UTP port labeled “9” is used to switch between the Normal and the Uplink position.
Connecting Thin Coaxial Segment The BNC port on Mini Hub model DE-809TC is used to connect to a thin coaxial segment. Connect a T-connector to the BNC connector, then connect both ends of the T-connector to the thin coaxial cable. If the thin coaxial segment terminates at the hub, attach a 50-ohm terminator to one end of the T-connector.
10BASE-T Ethernet Mini Hubs User’s Guide Cascading Hubs Through Thin Coaxial Cable The BNC port on the Mini Hub model DE-809TC can be used to cascade hubs together. You may cascade DE-809TC hubs together through the BNC ports. You may also cascade the DE-809TC with any other IEEE 802.3 Ethernet standard 10BASE-T hubs equipped with BNC ports. You may attach up to thirty nodes to a thin coaxial segment. In this sense, it is possible to cascade a maximum of thirty hubs together through the thin coaxial cable.
Cascading Hubs Through UTP Cable Any of the UTP ports can be used to cascade hubs together. Note that when two UTP ports of two hubs are connected together, the wires inside the UTP cable must be crossed over. See appendix A for the wire cross-over. Mark all crossed-over UTP cables clearly so they will not be used by mistake for normal connection. If you use Mini Hub model DE-809TP, UTP port labeled “9” is especially designed for hub cascading.
10BASE-T Ethernet Mini Hubs User’s Guide Hub cascading: If straight-through UTP cable is used, one UTP port must be in Uplink position.
Diagnostic LEDs & Troubleshooting ♦ Power. ◊ ON: “power good”. ◊ OFF: “power bad.” Check to see if the AC power adapter is properly connected, or if the correct AC power adapter is being used.
10BASE-T Ethernet Mini Hubs User’s Guide DE-809TC Diagnostic LEDs on front panel of Mini Hubs ♦ Collision. ◊ Blinking: Packet collision is occurring. Packet collisions are not an abnormal situation. Collisions occur when two or more computers transmit packets on the network simultaneously, and a contention takes place on the network line. The computers should then back off, then retry transmission. This trial-and-error process is repeated until no collision takes place.
♦ Rx (for BNC port). ◊ Blinking: Packet reception is occurring. ◊ OFF: No packet reception. ♦ Partition (for each UTP port). ◊ ON: The UTP port is being partitioned off due to excessive packet collisions. Note that the UTP cable between a hub port and a non-repeater node must contain straight-through wires (no cross-over). ◊ OFF: Segment has no problem. ♦ Partition (for BNC port).
10BASE-T Ethernet Mini Hubs User’s Guide A Cables, Connectors & AC Power Adapters 10BASE-T Unshielded Twisted-Pair (UTP) Cable ♦ ♦ ♦ Cable characteristics: 0.4 - 0.6 mm (22 - 26 AWG) 8-wire (only 4 wires used for 10BASE-T) Maximum segment length: 100 meters Applicable connectors: RJ-45, Telco-50 10BASE2 Thin Coaxial Cable ♦ ♦ ♦ ♦ Cable characteristics: 0.2 inch diameter RG-58A/U 50 ohm Maximum segment length: 185 meters Minimum distance between two nodes: 0.
AC Power Adapters The following lists the specifications of the AC power adapters supplied by D-Link for use with the Mini Hub. Your Mini Hub package may contain one of these AC power adapters. If you use an AC power adapter supplied by yourself, make sure that it complies with the output power listed below and the input power and plug (AC power specifications) of your area. AC power adapter model AD-071A ⇒ Input power: AC 120 volts, 50-60Hz ⇒ Output power: DC 7.
10BASE-T Ethernet Mini Hubs User’s Guide ⇒ Plug: German standard ⇒ Safety standard: VDE AC Power adapter model AD-071AJ ⇒ Input power: AC 100 volts, 50-60Hz ⇒ Output power: DC 7.5 volts unregulated, 1 A ⇒ Maximum power consumption: 7.
B Technical Specifications DE-809TP ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ 20 Standard: IEEE 802.3 10BASE-T. Medium support: UTP. Number of UTP ports: 9. Number of connectors: 9 RJ-45. Cascading: Switchable straight-through/cross-wired UTP port (“uplink”) button Number of diagnostic LEDs: 21 Power requirement: DC 7.5 volts 1 Amp. Power feeding: through AC power adapter. Operating temperature: -10° to 55° Celsius. Humidity: 5% - 95% non-condensing. Dimensions: 197 x 115 x 28 mm (7.75 x 4.53 x 1.
10BASE-T Ethernet Mini Hubs User’s Guide DE-809TC ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Standard: IEEE 802.3 10BASE-T. Medium support: thin coaxial, UTP. Number of UTP ports: 8. Number of BNC ports: 1. Number of connectors: 8 RJ-45, 1 BNC. Number of diagnostic LEDs: 20 Power requirement: DC 7.5 volts 1 Amp. Power feeding: through AC power adapter. Operating temperature: -10° to 55° Celsius. Humidity: 5% - 95% non-condensing. Dimensions: 197 x 115 x 28 mm (7.75 x 4.53 x 1.
22 Cables, Connectors & AC Power Adapters
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