User Manual
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... use. This user guide describes how to use the stacking clip to connect another OfficeConnect hub to form a stack (each hub is crucial. If you to create a small network with up to four or eight workstations, as shown in Figure 1. s The Ethernet Hub 4C has four 10BASE-T ports, a 10BASE-2 port and an AUI port. Figure 1 Small Network With OfficeConnect Hub and Optional Print Server HP JetDirect OfficeConnect print server OfficeConnect hub...
... use. This user guide describes how to use the stacking clip to connect another OfficeConnect hub to form a stack (each hub is crucial. If you to create a small network with up to four or eight workstations, as shown in Figure 1. s The Ethernet Hub 4C has four 10BASE-T ports, a 10BASE-2 port and an AUI port. Figure 1 Small Network With OfficeConnect Hub and Optional Print Server HP JetDirect OfficeConnect print server OfficeConnect hub...
User Manual
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...: s One power adapter for use transceivers. s Four rubber feet. s An OfficeConnect Network Assistant CD-ROM. The maximum length you need : s An AUI cable. Workstation Connections To connect workstations and other equipment to comply with the 10BASE-T standard, ports designed for example 1x, 2x, 3x... CREATING YOUR NETWORK What Else Do I Need? s A stacking clip. Transceiver Connections If you want to connect a transceiver to your hub (Hub 4C...
...: s One power adapter for use transceivers. s Four rubber feet. s An OfficeConnect Network Assistant CD-ROM. The maximum length you need : s An AUI cable. Workstation Connections To connect workstations and other equipment to comply with the 10BASE-T standard, ports designed for example 1x, 2x, 3x... CREATING YOUR NETWORK What Else Do I Need? s A stacking clip. Transceiver Connections If you want to connect a transceiver to your hub (Hub 4C...
User Manual
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...problem, refer to create your network, using your OfficeConnect hub. Remove any connections to prevent dust entering the cooling vents. Also available from 3Com, is within reach of the power outlet. If you suspect there is recommended that you mount the hubs with the LEDs facing upwards to the hub....) clear of the unit. Using Your Hub You are now ready to (depending on your hub): s "Problem Solving for the Hub 4 and 4C" on page 15 s "Problem Solving for wall mounting. CAUTION: Only wall mount single hubs, do not wall mount stacked hubs. When wall mounting your hub, ...
...problem, refer to create your network, using your OfficeConnect hub. Remove any connections to prevent dust entering the cooling vents. Also available from 3Com, is within reach of the power outlet. If you suspect there is recommended that you mount the hubs with the LEDs facing upwards to the hub....) clear of the unit. Using Your Hub You are now ready to (depending on your hub): s "Problem Solving for the Hub 4 and 4C" on page 15 s "Problem Solving for wall mounting. CAUTION: Only wall mount single hubs, do not wall mount stacked hubs. When wall mounting your hub, ...
User Manual
Page 10
... green if the AUI port is powered on a port. 10BASE-T Port Status LEDs green/yellow Indicates the status of normal network operation. THE OFFICECONNECT ETHERNET HUB 4 AND 4C Ethernet Hub 4 and 4C-Front Alert LED orange Alerts you to excessive network use has been partitioned. 10 Nothing is connected to the port or the link has failed. Network Utilization LEDs (Hub 4C only) green/yellow/orange Indicates how much your network is being used . Collision LED yellow Flashes each time a packet...
... green if the AUI port is powered on a port. 10BASE-T Port Status LEDs green/yellow Indicates the status of normal network operation. THE OFFICECONNECT ETHERNET HUB 4 AND 4C Ethernet Hub 4 and 4C-Front Alert LED orange Alerts you to excessive network use has been partitioned. 10 Nothing is connected to the port or the link has failed. Network Utilization LEDs (Hub 4C only) green/yellow/orange Indicates how much your network is being used . Collision LED yellow Flashes each time a packet...
User Manual
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... Connecting a transceiver automatically disables the 10BASE-2 port. Uplink/Normal switch Affects the operation of different media types to be used , it is supplied with RJ-45 connectors. If used to connect your hub to the hub. For correct usage, refer to any other OfficeConnect hubs and equipment with 10BASE-2 cabling. Refer to "Connecting Hubs Using 10BASE-2" on page 14. Do not use the power adapter that has a 10BASE-T port. Ethernet Hub 4 and 4C-Rear Power Adapter socket...
... Connecting a transceiver automatically disables the 10BASE-2 port. Uplink/Normal switch Affects the operation of different media types to be used , it is supplied with RJ-45 connectors. If used to connect your hub to the hub. For correct usage, refer to any other OfficeConnect hubs and equipment with 10BASE-2 cabling. Refer to "Connecting Hubs Using 10BASE-2" on page 14. Do not use the power adapter that has a 10BASE-T port. Ethernet Hub 4 and 4C-Rear Power Adapter socket...
User Manual
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... de mettre en route. Wait about five seconds between power cycles. When the connector is fully in use the 10BASE-2 port, you do this. Do not connect the same two hubs together using 10BASE-T cables. This is not connected to the 10BASE-2 port, the port partitions and the Coax Status LED lights yellow. When you start using your network immediately. Connecting Transceivers to the AUI Port You can connect to...
... de mettre en route. Wait about five seconds between power cycles. When the connector is fully in use the 10BASE-2 port, you do this. Do not connect the same two hubs together using 10BASE-T cables. This is not connected to the 10BASE-2 port, the port partitions and the Coax Status LED lights yellow. When you start using your network immediately. Connecting Transceivers to the AUI Port You can connect to...
User Manual
Page 13
... 50 Ohm terminator 13 Checking Connections When you have used should be disabled. Figure 4 Correct Hub Connections Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. Minimum length of each connector counter-clockwise to the next section). Connect the 'Y' pieces with 50 Ohm terminators (end pieces). When using 10BASE-T cable (refer to unlock it, and remove it is 185m (607ft) (from terminator to terminate the two free ends of...
... 50 Ohm terminator 13 Checking Connections When you have used should be disabled. Figure 4 Correct Hub Connections Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. Minimum length of each connector counter-clockwise to the next section). Connect the 'Y' pieces with 50 Ohm terminators (end pieces). When using 10BASE-T cable (refer to unlock it, and remove it is 185m (607ft) (from terminator to terminate the two free ends of...
User Manual
Page 14
... a problem, refer to another hub). If you have used (if applicable), the LED should be green. this for each cable is 100m (328ft) s Cabling is set to Uplink (in) AUI UNpolrimnkal 4 Checking Connections 1x When you suspect there is the best way to find out if there are problems with your network s Case vents are not, check your hubs, power them on page 15. This unused port can connect hubs...
... a problem, refer to another hub). If you have used (if applicable), the LED should be green. this for each cable is 100m (328ft) s Cabling is set to Uplink (in) AUI UNpolrimnkal 4 Checking Connections 1x When you suspect there is the best way to find out if there are problems with your network s Case vents are not, check your hubs, power them on page 15. This unused port can connect hubs...
User Manual
Page 15
... is still no power, you when detecting and solving possible problems with your network. Check your connections and remove the loop. With 10BASE-2 it is likely an Uplink/Normal switch is correctly connected to the hub and to partition. Check the AUI cable is incorrectly set. Alert LED continuously lit. Port Status LED yellow for information on what to green, on receiving a valid packet on the port. The LED will be...
... is still no power, you when detecting and solving possible problems with your network. Check your connections and remove the loop. With 10BASE-2 it is likely an Uplink/Normal switch is correctly connected to the hub and to partition. Check the AUI cable is incorrectly set. Alert LED continuously lit. Port Status LED yellow for information on what to green, on receiving a valid packet on the port. The LED will be...
User Manual
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...+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Refer to Figure 6 below to the hub is not damaged. Pins 4, 5, 7 and 8 are not used 16 There is set to port 4, ensure that has a connection. Figure 6 Straight-through Cable/Crossover Cable Straight-through and a crossover cable. If the cable is connected to Normal (out). Port Status LED not lit for a 10BASE-T port that the Uplink/Normal switch is a problem with this connection.
...+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Refer to Figure 6 below to the hub is not damaged. Pins 4, 5, 7 and 8 are not used 16 There is set to port 4, ensure that has a connection. Figure 6 Straight-through Cable/Crossover Cable Straight-through and a crossover cable. If the cable is connected to Normal (out). Port Status LED not lit for a 10BASE-T port that the Uplink/Normal switch is a problem with this connection.
User Manual
Page 18
... OfficeConnect hub. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use any workstation or piece of port 8. If used, it is supplied with RJ-45 connectors. Refer to "Connecting Hubs Using 10BASE-T" on page 21. 18 Uplink/Normal switch Affects the operation of equipment that is effectively a ninth port. Eight 10BASE-T RJ-45 ports Use 10BASE-T cable with this OfficeConnect hub. For correct usage, refer to "Connecting Hubs Using 10BASE-2" on page 20. Ethernet Hub...
... OfficeConnect hub. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use any workstation or piece of port 8. If used, it is supplied with RJ-45 connectors. Refer to "Connecting Hubs Using 10BASE-T" on page 21. 18 Uplink/Normal switch Affects the operation of equipment that is effectively a ninth port. Eight 10BASE-T RJ-45 ports Use 10BASE-T cable with this OfficeConnect hub. For correct usage, refer to "Connecting Hubs Using 10BASE-2" on page 20. Ethernet Hub...
User Manual
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... correct operation. 19 This is not used, the port partitions and the 10BASE-2 Port Status LED lights yellow. Connecting Workstations and Other Equipment to Your Hub WARNING: Please read the 'Important Safety Information' section before you are using port 8 to connect to a workstation using a straight-through TP cable, ensure the Uplink/Normal switch is set to Normal (out). When you need to connect a terminator (end piece) to it.
... correct operation. 19 This is not used, the port partitions and the 10BASE-2 Port Status LED lights yellow. Connecting Workstations and Other Equipment to Your Hub WARNING: Please read the 'Important Safety Information' section before you are using port 8 to connect to a workstation using a straight-through TP cable, ensure the Uplink/Normal switch is set to Normal (out). When you need to connect a terminator (end piece) to it.
User Manual
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... Switch set to Uplink (in) Switch set to "Problem Solving for the Hub 8 and 8C" on . This is 100m (328ft) The Port Status LEDs for the top hub (the one with your network. Maximum length of each hub. 2 Set all Uplink/Normal switches to Uplink (in) except for the 10BASE-T ports you have used and is not lit - If they are not obstructed. this for each cable is correct operation. Connecting Hubs Using...
... Switch set to Uplink (in) Switch set to "Problem Solving for the Hub 8 and 8C" on . This is 100m (328ft) The Port Status LEDs for the top hub (the one with your network. Maximum length of each hub. 2 Set all Uplink/Normal switches to Uplink (in) except for the 10BASE-T ports you have used and is not lit - If they are not obstructed. this for each cable is correct operation. Connecting Hubs Using...
User Manual
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... likely an Uplink/Normal switch is still no power, you when detecting and solving possible problems with your network which case the corresponding Port Status LED will change from yellow to green, on receiving a valid packet on the hubs. PROBLEM SOLVING FOR THE HUB 8 AND 8C The OfficeConnect hub has been designed to aid you may have a faulty power adapter which needs replacing with another OfficeConnect power adapter. Check the following...
... likely an Uplink/Normal switch is still no power, you when detecting and solving possible problems with your network which case the corresponding Port Status LED will change from yellow to green, on receiving a valid packet on the hubs. PROBLEM SOLVING FOR THE HUB 8 AND 8C The OfficeConnect hub has been designed to aid you may have a faulty power adapter which needs replacing with another OfficeConnect power adapter. Check the following...
User Manual
Page 23
... check that the Uplink/Normal switch is set to compare the wiring of a straight-through 10BASE-T cable which is properly connected at both ends, and is a problem with this connection. Refer to Figure 9 below to Normal (out). Figure 9 Straight-through Cable/Crossover Cable Normal port Pin 1 Rx+ 2 Rx- 3 Tx+ 4 5 6 Tx- 7 8 Uplink Normal Pin port port Pin 1 1 Rx- Rx+ 2 2 Rx+ Rx- 3 3 Tx- Port Status LED not lit for a 10BASE-T port...
... check that the Uplink/Normal switch is set to compare the wiring of a straight-through 10BASE-T cable which is properly connected at both ends, and is a problem with this connection. Refer to Figure 9 below to Normal (out). Figure 9 Straight-through Cable/Crossover Cable Normal port Pin 1 Rx+ 2 Rx- 3 Tx+ 4 5 6 Tx- 7 8 Uplink Normal Pin port port Pin 1 1 Rx- Rx+ 2 2 Rx+ Rx- 3 3 Tx- Port Status LED not lit for a 10BASE-T port...
User Manual
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... loop. Packets are within a single room, others span continents. The OfficeConnect hub uses RJ-45 type connectors for the purpose of exchanging information. A segment is the length of Ethernet cable connected to a port, whether this and partitions (isolates) one path. Ethernet is a type of LAN, referring to the technology used to connect 10Mbps Ethernet transceivers to network equipment (Hub 8C only). 24 Your hub detects this cable is 10BASE...
... loop. Packets are within a single room, others span continents. The OfficeConnect hub uses RJ-45 type connectors for the purpose of exchanging information. A segment is the length of Ethernet cable connected to a port, whether this and partitions (isolates) one path. Ethernet is a type of LAN, referring to the technology used to connect 10Mbps Ethernet transceivers to network equipment (Hub 8C only). 24 Your hub detects this cable is 10BASE...
User Manual
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... is supplied with international safety standards, only use the power adapter that is connected also operates under SELV (Safety Extra Low Voltage) conditions according to IEC 950. If you have a physical problem with the unit that cannot be taken during installation and removal of the unit. These are no user-replaceable fuses or user-serviceable parts inside the hub. s Only stack the OfficeConnect hub with problem solving...
... is supplied with international safety standards, only use the power adapter that is connected also operates under SELV (Safety Extra Low Voltage) conditions according to IEC 950. If you have a physical problem with the unit that cannot be taken during installation and removal of the unit. These are no user-replaceable fuses or user-serviceable parts inside the hub. s Only stack the OfficeConnect hub with problem solving...
User Manual
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... 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 Corporation World Wide Web site. World Wide Web Site To access the latest networking information on most recent information, 3Com recommends that range from technical education to maintenance and professional services. 3Com Knowledgebase Web Services This interactive tool contains...
... 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 Corporation World Wide Web site. World Wide Web Site To access the latest networking information on most recent information, 3Com recommends that range from technical education to maintenance and professional services. 3Com Knowledgebase Web Services This interactive tool contains...
User Manual
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... 2000 WARRANTY In addition to the Hardware Warranty and Software Warranty stated above ) 3Com's sole obligation under normal use of the software product not in accordance with 3Com's published specifications or user manual. Products returned to 3Com's Corporate Service Center must be , at 3Com's Web site, http://www.3com.com/products/yr2000.html, as being compatible, 3Com will be uninterrupted or error free, or that all other products...
... 2000 WARRANTY In addition to the Hardware Warranty and Software Warranty stated above ) 3Com's sole obligation under normal use of the software product not in accordance with 3Com's published specifications or user manual. Products returned to 3Com's Corporate Service Center must be , at 3Com's Web site, http://www.3com.com/products/yr2000.html, as being compatible, 3Com will be uninterrupted or error free, or that all other products...
User Manual
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... numbers. to requests for telephone technical support will charge Customer for the replacement product, at no later than thirty (30) days after shipment of the DOA product, but no charge, and provide software and firmware upgrades, a bug list, and technical information about 3Com products. This offer is not available where prohibited or restricted by law. 3Com's Web and Bulletin Board Service...
... numbers. to requests for telephone technical support will charge Customer for the replacement product, at no later than thirty (30) days after shipment of the DOA product, but no charge, and provide software and firmware upgrades, a bug list, and technical information about 3Com products. This offer is not available where prohibited or restricted by law. 3Com's Web and Bulletin Board Service...