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Table of Contents About this Guide ............................................. 1 Rack Mounting ................................................ 2 Installing Network Cables.............................. 3 Station Connections with Twisted-Pair Cable . . . ...................................... 4 Hub-to-Hub connections with 4 Twisted-Pair Cable........................... Thin Coaxial Cable Connections.. ....... .7 Thick Coaxial Cable Connections.... ...9 9 Connecting Power........................
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About this Guide This guide provides instructions for instal-ling all of the products described below. These D-Link@ Ethernet Hubs are all Plug and Play compliant for easy installation. / - \ DE81 2TP+ DE-81 6TP DE-824TP When designing your cable configuration, it is necessary to strictly observe the Ethernet cabling rules. This manual assumes familiarity with the fundamental Ethernet cabling rules and limits; it only describes the details of cable connection. 1
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Rack Mounting The Ethernet Hub may stand alone, or may be mounted in a standard 19-inch equip-ment rack. Rack mounting produces an orderly installation when you have a number of related network devices. Use the six supplied screws to fasten the supplied mounting brackets to either end of the hub, then fasten the hub into the rack. 2
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Installing Network Cables Your Ethernet Hub is denominated as an 12-port, or 16-port, or 24-port Ethernet Hub according to the number of its front-panel 1OBaseT ports. Additionally it has two ports whose connectors are on the rear panel: one lOBase2 port (BNC connector), and one lOBase5 port (AUI connector). These two un-numbered rear-panel ports are logically equivalent with the numbered ports on the front panel of the Ethernet Hub. By using a rear-panel connector of the Ethernet Hub to connect
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Connect each station to the Ethernet Hub by means of a twisted-pair straight cable (10BaseT cable, Category 3, 4, or 5). Plug one RJ-45 connector into a front-panel port of the Ethernet Hub, and plug the other RJ-45 connector into the station’s Ethernet adapter. UTP cable w ’ RJ-45 connector Hub-to-hub connection between Model DE- 812TP+ Ethernet Hubs requires a 1OBaseT crossover cable. In making a hub-to-hub 4
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connection involving a Model DE-816TP or Model DE-824 Ethernet Hub, there is the alternative of using a straight cable. Internal Crossover Features The Model DE-816TP Ethernet Hub and DE- 824TP Ethernet Hub feature internal cross-over alternatives for Port 1: + Model DE-816TP Ethernet Hub The port numbered as Port 1 is identical with each of the other numbered ports. But Port 1 is specially equipped with an alternative connector, labeled “Uplink.” The Uplink connector is wired to the same conduc
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+ Model DE-824TP Ethernet Hub The connector numbered as Port 1 is equipped with a switch labeled “Uplink” When the Uplink switch is in the “off (tall) position, the Port 1 connector is wired “straight” to the supporting circuitry, and Port 1 is then identical with each of the twenty-three other numbered ports. When the Uplink switch is in the “on” (depressed) position, a pin inter- change is switched into the wiring for the Port 1 connector, to provide a cross-over, and thus allow use of a strai
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two connectors would cancel one another, and the hub-to-hub connection would fail.) Thus the rule for making a hub-to-hub connection with twisted-pair cable is as follows: To make a hub-to-hub connection with a straight cable, Uplink must be selected at one end of the cable, and Uplink must not be selected at the other end of the cable. To make a hub-to-hub connection with a cross-over cable, Uplink must not be selected at either end of the cable. To connect the Ethernet Hub to a thin coaxial ca
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Thin coax Segment v Sometimes several Ethernet Hubs must be co- located to support a larger array of stations than can be handled by a single Ethernet Hub. Then it is useful to stack the Ethernet Hubs by joining their BNC connectors with 0.5 meter patches of thin coaxial cable. Such stacking is just a special case of thin coaxial cable connection as treated above, and the terminator rule is the same: If the stack is at the end of the incoming cable, then a 50-ohm terminator must be substituted f
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To connect the Ethernet Hub to a thick coaxial cable (lOBase cable), it is necessary to have a lOBase Ethernet transceiver (tap) on the cable at the Ethernet Hub’s position. Then run an AUI cable between the transceiver’s AUI connector and the AUI connector on the rear panel of the Ethernet Hub. AUI port -AU1 cable Transceiver x Connecting Power For compatibility with electric service in most areas of the world, the Ethernet Hub’s power supply automatically adjusts to line power in the range 100
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receptacle on the rear panel of the Ethernet Hub. Plug the other end of the power cord into an electric service outlet. Turn on power to the Ethernet Hub by switching its rear-panel power switch to the on position. LED Indicators LED indicators are located on the front panel of the Ethernet Hub. Jabber LED One Jabber LED for all ports. This LED flashes red when the Ethernet Hub detects a data packet that is defective (exceeds allow- able length). This kind of error will ordinarily be managed by
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One Link/Rx LED for each numbered port. Steady green (Link state) indicates that the port has good linkage to its partner device. Flashing green (Receive state) indicates that the port is receiving data from its partner device. If the port is connected but the Link/Rx LED is dark, check whether (1) the Ethernet Hub and the partner device both have power, (2) the port’s cable is firmly seated in its connectors in the Ethernet Hub and in the partner device, (3) the connecting cable is good and is
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Dimensions: W x H x L, mm (including mounting brackets): DE-812TP+: 483x44 125 DE-81 6TP: 483x44 125 DE-824TP 483x44 211 Weight: DE-81 2TP+: 2.0 kg DE-816TP: 2.0 kg DE-824TP: 3.03 kg Operating 0” - 55” c temperature: Humidity: 10 - 90 % non-condensing I Power cord: Type 1 (US) or Type 2 (Europe) per 25OV, 1OA 125V, 7A Plug Rating 25OV, 10A Cord Rating 125V, 7A 1830mm (6ft) Length 1830mm (6ft) VDE Safety UL, CSA Standard 12
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D-Link Office USA 5 Musick, Irvine, CA92618, U.S.A. Tel. l-714-455-1688 Fax.1-714-455-2521 2180 Durwin Driver, Unib#6, Mississaugs, Ontario, Canada LSL 5M8, Canada Tel. l-905-828-0260 Fax. l-905-828-5669 UK D-Link House, 6 Garland Road, Stanmore, London HA7 IDP, U.K. Tel. 44-181-235-555s Fax. 44-181-235-5500 Auf Der Krautweide 32,65812 Bad Soden, Germany Tel. 49-6196-643011 Fax. 49-6196-28049 Le Florilege 2, Allee de la Fresnerie, 78330 Fonteany Le Fleury, France Tel. 33-l-30.23.86.88 Fax. 33-l-
