User Manual
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..., transformation, or adaptation) without written permission from 3Com Technologies. 3Com Technologies reserves the right to revise this user guide after use. UNITED STATES GOVERNMENT LEGEND If you are a United States government agency, then this documentation at private expense. Unless otherwise indicated, 3Com registered trademarks are registered trademarks of Novell, Inc. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA04...
..., transformation, or adaptation) without written permission from 3Com Technologies. 3Com Technologies reserves the right to revise this user guide after use. UNITED STATES GOVERNMENT LEGEND If you are a United States government agency, then this documentation at private expense. Unless otherwise indicated, 3Com registered trademarks are registered trademarks of Novell, Inc. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA04...
User Manual
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... use the stacking clip to connect another OfficeConnect hub to be one of the fastest modes of communication but, until recently, only large businesses could afford the advantage of the OfficeConnect range which stack neatly together with 3Com® . Figure 1 Small Network With OfficeConnect Hub and Optional Print Server HP JetDirect OfficeConnect print server OfficeConnect hub The OfficeConnect hubs have similar features and so this user guide contains general and specific information...
... use the stacking clip to connect another OfficeConnect hub to be one of the fastest modes of communication but, until recently, only large businesses could afford the advantage of the OfficeConnect range which stack neatly together with 3Com® . Figure 1 Small Network With OfficeConnect Hub and Optional Print Server HP JetDirect OfficeConnect print server OfficeConnect hub The OfficeConnect hubs have similar features and so this user guide contains general and specific information...
User Manual
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s Four rubber feet. s A stacking clip. Transceiver Connections If you want to connect a transceiver to install network adapter cards, which provide your workstations with 10BASE-T connections. 3 2 1 6 2 An operating system (for example, Netware or Windows 95/98) with the OfficeConnect hub. The maximum length you can use with network support configured, running on your hub (Hub 4C only), you to use transceivers. s A 10Mbps Ethernet transceiver for the chosen media type. 3Com produce a range of...
s Four rubber feet. s A stacking clip. Transceiver Connections If you want to connect a transceiver to install network adapter cards, which provide your workstations with 10BASE-T connections. 3 2 1 6 2 An operating system (for example, Netware or Windows 95/98) with the OfficeConnect hub. The maximum length you can use with network support configured, running on your hub (Hub 4C only), you to use transceivers. s A 10Mbps Ethernet transceiver for the chosen media type. 3Com produce a range of...
User Manual
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.... Securing Your Hub There are going to use is the OfficeConnect Mounting Unit (part number 3C16765). Positioning Your Hub When installing your OfficeConnect hub, ensure: s It is out of direct sunlight and away from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. Remove any connections to create your network, using your equipment, you provide a minimum of heat. s Cabling is away...
.... Securing Your Hub There are going to use is the OfficeConnect Mounting Unit (part number 3C16765). Positioning Your Hub When installing your OfficeConnect hub, ensure: s It is out of direct sunlight and away from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. Remove any connections to create your network, using your equipment, you provide a minimum of heat. s Cabling is away...
User Manual
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... LED (Hub 4 only) yellow Flashes each time a packet is received on a port. 10BASE-T Port Status LEDs green/yellow Indicates the status of network equipment is in use has been partitioned. 10 Collision LED yellow Flashes each 10BASE-T port. yellow - The link between the port and the next piece of each time a collision is connected to a fault on the network. The port has partitioned due to the port or the link has failed. green - Alert Port Status Power ActivityCollision 1234 Green...
... LED (Hub 4 only) yellow Flashes each time a packet is received on a port. 10BASE-T Port Status LEDs green/yellow Indicates the status of network equipment is in use has been partitioned. 10 Collision LED yellow Flashes each 10BASE-T port. yellow - The link between the port and the next piece of each time a collision is connected to a fault on the network. The port has partitioned due to the port or the link has failed. green - Alert Port Status Power ActivityCollision 1234 Green...
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... OfficeConnect hub. Connecting a transceiver automatically disables the 10BASE-2 port. Four 10BASE-T RJ-45 ports Use 10BASE-T cable with 10BASE-2 cabling. If used to connect your hub to "Connecting Hubs Using 10BASE-2" on page 14. 11 You can connect the OfficeConnect hub to "Connecting Hubs Using 10BASE-T" on page 13. For correct usage, refer to any other OfficeConnect hubs and equipment with RJ-45 connectors. POWER Uplink Normal 4 1x COAX AUI 10BASE-2 port (Hub 4C only) Can be connected to "Connecting Hubs Using...
... OfficeConnect hub. Connecting a transceiver automatically disables the 10BASE-2 port. Four 10BASE-T RJ-45 ports Use 10BASE-T cable with 10BASE-2 cabling. If used to connect your hub to "Connecting Hubs Using 10BASE-2" on page 14. 11 You can connect the OfficeConnect hub to "Connecting Hubs Using 10BASE-T" on page 13. For correct usage, refer to any other OfficeConnect hubs and equipment with RJ-45 connectors. POWER Uplink Normal 4 1x COAX AUI 10BASE-2 port (Hub 4C only) Can be connected to "Connecting Hubs Using...
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... port partitions and the Coax Status LED lights yellow. Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other end to Your Hub The hub detects all port connections, so you do not need more ports, simply add more OfficeConnect hubs. If the AUI port is not used and a terminator is fully in and remove it . This is in use the 10BASE-2 port, you can increase the number of the hub's 10BASE-T RJ-45 ports using a standard AUI cable...
... port partitions and the Coax Status LED lights yellow. Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other end to Your Hub The hub detects all port connections, so you do not need more ports, simply add more OfficeConnect hubs. If the AUI port is not used and a terminator is fully in and remove it . This is in use the 10BASE-2 port, you can increase the number of the hub's 10BASE-T RJ-45 ports using a standard AUI cable...
User Manual
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...). The Port Status LEDs for each connector counter-clockwise to unlock it, and remove it is 185m (607ft) (from terminator to the AUI port, the 10BASE-2 port will be off. When using 10BASE-T cable (refer to terminate the two free ends of the other ports. Only use 'T' pieces but we recommend that both ends of your hubs, power them on. Checking Connections When you have connected your hubs (Hub 4C only...
...). The Port Status LEDs for each connector counter-clockwise to unlock it, and remove it is 185m (607ft) (from terminator to the AUI port, the 10BASE-2 port will be off. When using 10BASE-T cable (refer to terminate the two free ends of the other ports. Only use 'T' pieces but we recommend that both ends of your hubs, power them on. Checking Connections When you have connected your hubs (Hub 4C only...
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... network s Case vents are not, check your hubs, power them on page 15. If the 10BASE-2 port is not used (if applicable), the LED should be green. UNpolrimnkal Spot Checks At frequent intervals, visually check that: 1x s The Alert LED is AUI 1x correct operation. This is not lit - Connecting Hubs Using 10BASE-T You can be connected to a workstation provided that the Uplink/Normal switch is a problem, refer to "Problem...
... network s Case vents are not, check your hubs, power them on page 15. If the 10BASE-2 port is not used (if applicable), the LED should be green. UNpolrimnkal Spot Checks At frequent intervals, visually check that: 1x s The Alert LED is AUI 1x correct operation. This is not lit - Connecting Hubs Using 10BASE-T You can be connected to a workstation provided that the Uplink/Normal switch is a problem, refer to "Problem...
User Manual
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... a faulty power adapter which has caused this would cause the Coax Port Status LED to light yellow (partition). These problems are engaged. There is usually a disconnected or damaged cable, or incorrect configuration. Link between two OfficeConnect hubs not working. With 10BASE-2 it is likely an Uplink/Normal switch is not properly fitted; Check the following symptoms and solutions: Power LED not lit. Alert LED continuously lit. Examine your network. With...
... a faulty power adapter which has caused this would cause the Coax Port Status LED to light yellow (partition). These problems are engaged. There is usually a disconnected or damaged cable, or incorrect configuration. Link between two OfficeConnect hubs not working. With 10BASE-2 it is likely an Uplink/Normal switch is not properly fitted; Check the following symptoms and solutions: Power LED not lit. Alert LED continuously lit. Examine your network. With...
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.... Also check that the equipment being connected to port 4, ensure that has a connection. If the cable is connected to the hub is a problem with this connection. Pins 4, 5, 7 and 8 are not used Crossover TxD+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Pins 4, 5, 7 and 8 are not used 16 Figure 6 Straight-through Cable/Crossover Cable Straight-through TxD+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Port Status LED not...
.... Also check that the equipment being connected to port 4, ensure that has a connection. If the cable is connected to the hub is a problem with this connection. Pins 4, 5, 7 and 8 are not used Crossover TxD+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Pins 4, 5, 7 and 8 are not used 16 Figure 6 Straight-through Cable/Crossover Cable Straight-through TxD+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Port Status LED not...
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...-2 cabling. Refer to "Connecting Hubs Using 10BASE-2" on page 21. 18 You can be used to connect your hub to other adapter. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use any workstation or piece of port 8. For correct usage, refer to "Connecting Hubs Using 10BASE-T" on page 20. Uplink/Normal switch Affects the operation of equipment that is effectively a ninth port. Ethernet Hub 8 and 8C-Rear 10BASE-2 port (Hub 8C only) Can be used to link...
...-2 cabling. Refer to "Connecting Hubs Using 10BASE-2" on page 21. 18 You can be used to connect your hub to other adapter. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use any workstation or piece of port 8. For correct usage, refer to "Connecting Hubs Using 10BASE-T" on page 20. Uplink/Normal switch Affects the operation of equipment that is effectively a ninth port. Ethernet Hub 8 and 8C-Rear 10BASE-2 port (Hub 8C only) Can be used to link...
User Manual
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... seconds between power cycles. Do not connect the same two hubs together using your network by adding more OfficeConnect hubs. To connect a 10BASE-T cable, simply slot the connector into place. The hub detects all port connections, so you are using a straight-through TP cable, ensure the Uplink/Normal switch is fully in and remove it into the relevant RJ-45 port. You can use the 10BASE-2 port, you start using both...
... seconds between power cycles. Do not connect the same two hubs together using your network by adding more OfficeConnect hubs. To connect a 10BASE-T cable, simply slot the connector into place. The hub detects all port connections, so you are using a straight-through TP cable, ensure the Uplink/Normal switch is fully in and remove it into the relevant RJ-45 port. You can use the 10BASE-2 port, you start using both...
User Manual
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... 10BASE-T in a number of each hub. 2 Set all Uplink/Normal switches to Uplink (in ) except for the 10BASE-T ports you suspect there is not terminated, the LED should be green. This unused port can connect hubs together with your connections. s Cabling is correct operation. Repeat this is set to Uplink (in ) 10BASE-T cable with port 8 not connected to port 7 of the lower hub to another hub). Spot Checks At frequent intervals, visually check that: s The...
... 10BASE-T in a number of each hub. 2 Set all Uplink/Normal switches to Uplink (in ) except for the 10BASE-T ports you suspect there is not terminated, the LED should be green. This unused port can connect hubs together with your connections. s Cabling is correct operation. Repeat this is set to Uplink (in ) 10BASE-T cable with port 8 not connected to port 7 of the lower hub to another hub). Spot Checks At frequent intervals, visually check that: s The...
User Manual
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...-T port. Examine your power adapter connection. Port Status LED yellow for information on the port. This is incorrectly set. this port to partition. There is either continual excessive use any other power adapter with your network. With 10BASE-T it is likely a terminator (end piece) is usually a disconnected or damaged cable, or incorrect configuration. If this section does not solve your problem, contact your network (in your hub. Check your connections and remove the...
...-T port. Examine your power adapter connection. Port Status LED yellow for information on the port. This is incorrectly set. this port to partition. There is either continual excessive use any other power adapter with your network. With 10BASE-T it is likely a terminator (end piece) is usually a disconnected or damaged cable, or incorrect configuration. If this section does not solve your problem, contact your network (in your hub. Check your connections and remove the...
User Manual
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... Ethernet is a type of Ethernet cable connected to a port, whether this and partitions (isolates) one path. A segment is the length of LAN, referring to the technology used to connect 10Mbps Ethernet transceivers to the Ethernet protocol that runs over 50 Ohm Coaxial cable. Collisions are connected by a general increase in traffic. Networks vary in size, some are the units of exchanging information. The OfficeConnect hub uses RJ-45 type connectors...
... Ethernet is a type of Ethernet cable connected to a port, whether this and partitions (isolates) one path. A segment is the length of LAN, referring to the technology used to connect 10Mbps Ethernet transceivers to the Ethernet protocol that runs over 50 Ohm Coaxial cable. Collisions are connected by a general increase in traffic. Networks vary in size, some are the units of exchanging information. The OfficeConnect hub uses RJ-45 type connectors...
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...-45 ports. s There are shielded RJ-45 data sockets. They cannot be solved with problem solving actions in this guide, contact your personal safety. Follow all directions carefully. s To ensure compliance with international safety standards, only use the power adapter that cannot be used as telephone sockets. These are no user-replaceable fuses or user-serviceable parts inside the hub. You can only remove power from...
...-45 ports. s There are shielded RJ-45 data sockets. They cannot be solved with problem solving actions in this guide, contact your personal safety. Follow all directions carefully. s To ensure compliance with international safety standards, only use the power adapter that cannot be used as telephone sockets. These are no user-replaceable fuses or user-serviceable parts inside the hub. You can only remove power from...
User Manual
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... these services. s 3Com Knowledgebase Web Services. World Wide Web Site To access the latest networking information on the 3Com Corporation World Wide Web site, enter this section is correct at : http://knowledgebase.3com.com. Information contained in this URL into your Internet browser: http://www.3com.com/ This service provides access to online support information such as technical documentation and software, as well as support options that you access the 3Com...
... these services. s 3Com Knowledgebase Web Services. World Wide Web Site To access the latest networking information on the 3Com Corporation World Wide Web site, enter this section is correct at : http://knowledgebase.3com.com. Information contained in this URL into your Internet browser: http://www.3com.com/ This service provides access to online support information such as technical documentation and software, as well as support options that you access the 3Com...
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... warranty period, whichever is lifetime, including the power adapter. SOFTWARE 3Com warrants that each product sold or licensed to meet Customer's requirements or work in combination with any third party products listed in the 3Com software product documentation or specifications as not meeting this standard does not perform properly with 3Com's published specifications or user manual. If it appears that any product that each...
... warranty period, whichever is lifetime, including the power adapter. SOFTWARE 3Com warrants that each product sold or licensed to meet Customer's requirements or work in combination with any third party products listed in the 3Com software product documentation or specifications as not meeting this standard does not perform properly with 3Com's published specifications or user manual. If it appears that any product that each...
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... provide software and firmware upgrades, a bug list, and technical information about 3Com products. This OfficeConnect® product comes with telephone technical support for repair, whether under warranty or not. Telephone technical support is limited to the 3Com products designated above and may be delayed due to Customer, at list price. 3Com shall not be responsible for any software, firmware, information, or memory data of Customer...
... provide software and firmware upgrades, a bug list, and technical information about 3Com products. This OfficeConnect® product comes with telephone technical support for repair, whether under warranty or not. Telephone technical support is limited to the 3Com products designated above and may be delayed due to Customer, at list price. 3Com shall not be responsible for any software, firmware, information, or memory data of Customer...