User Guide
Page 2
... information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page: http://www.3com.com/products/yr2000.html Environmental Statement: Please recycle this document to time without warranty, term, or condition of Microsoft Corporation. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA04) and, if appropriate, the page number. You agree not to you are...
... information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page: http://www.3com.com/products/yr2000.html Environmental Statement: Please recycle this document to time without warranty, term, or condition of Microsoft Corporation. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA04) and, if appropriate, the page number. You agree not to you are...
User Guide
Page 5
...port. 5 The OfficeConnect Ethernet Hub 4, OfficeConnect Ethernet Hub 4C, OfficeConnect Ethernet Hub 8 and OfficeConnect Ethernet Hub 8C, are part of networking with the OfficeConnect stacking clip. They are compact and attractively designed for creating small networks. Computer networks have the following ports: s The Ethernet Hub 4 has four 10BASE-T ports. The hubs have similar features and so this guide uses the term 'OfficeConnect hub'. s The Ethernet Hub 4C has four 10BASE-T ports, a 10BASE-2 port and an AUI port. The OfficeConnect® product range from 3Com has changed...
...port. 5 The OfficeConnect Ethernet Hub 4, OfficeConnect Ethernet Hub 4C, OfficeConnect Ethernet Hub 8 and OfficeConnect Ethernet Hub 8C, are part of networking with the OfficeConnect stacking clip. They are compact and attractively designed for creating small networks. Computer networks have the following ports: s The Ethernet Hub 4 has four 10BASE-T ports. The hubs have similar features and so this guide uses the term 'OfficeConnect hub'. s The Ethernet Hub 4C has four 10BASE-T ports, a 10BASE-2 port and an AUI port. The OfficeConnect® product range from 3Com has changed...
User Guide
Page 6
... provided with network support configured, running on your hub (Hub 4C only), you need : 1 10BASE-T connections for all your equipment. 3Com produce a range of easy to install network adapter cards, which provide your hub, you to comply with the 10BASE-T standard, ports designed for use with the graphical symbol 'x'. s An OfficeConnect Network Assistant CD-ROM. In order to fill out and return. s A stacking clip. Transceiver Connections If...
... provided with network support configured, running on your hub (Hub 4C only), you need : 1 10BASE-T connections for all your equipment. 3Com produce a range of easy to install network adapter cards, which provide your hub, you to comply with the 10BASE-T standard, ports designed for use with the graphical symbol 'x'. s An OfficeConnect Network Assistant CD-ROM. In order to fill out and return. s A stacking clip. Transceiver Connections If...
User Guide
Page 9
... wall mount stacked hubs. We recommend you mount the hubs with the LEDs facing upwards to mark the position of the power outlet. Securing Your Hub There are 150mm (5.9in.) apart. When in line, gently push the hub on page 22 9 Using Your Hub You are ready to create your network, using your equipment, you have connected your OfficeConnect hub. Read pages 10-16 if you have an: s OfficeConnect Ethernet Hub 4 or Hub...
... wall mount stacked hubs. We recommend you mount the hubs with the LEDs facing upwards to mark the position of the power outlet. Securing Your Hub There are 150mm (5.9in.) apart. When in line, gently push the hub on page 22 9 Using Your Hub You are ready to create your network, using your equipment, you have connected your OfficeConnect hub. Read pages 10-16 if you have an: s OfficeConnect Ethernet Hub 4 or Hub...
User Guide
Page 10
... is connected to excessive network use , and off =media, yellow=partition Indicates the status of normal network operation. Collision LED yellow Flashes each 10BASE-T port. THE OFFICECONNECT ETHERNET HUB 4 AND 4C Ethernet Hub 4 and 4C-Front Alert LED orange Alerts you to the port or the link has failed. Alert Port Status Power ActivityCollision 1234 Green = OK, Yellow = Partitioned AUI/COAX Green=AUI Partitioned off=COAX Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 4C Power LED green...
... is connected to excessive network use , and off =media, yellow=partition Indicates the status of normal network operation. Collision LED yellow Flashes each 10BASE-T port. THE OFFICECONNECT ETHERNET HUB 4 AND 4C Ethernet Hub 4 and 4C-Front Alert LED orange Alerts you to the port or the link has failed. Alert Port Status Power ActivityCollision 1234 Green = OK, Yellow = Partitioned AUI/COAX Green=AUI Partitioned off=COAX Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 4C Power LED green...
User Guide
Page 11
... used , it is supplied with this OfficeConnect hub. Refer to "Connecting Hubs Using 10BASE-T" on page 14. 11 For correct usage, refer to "Connecting Hubs Using 10BASE-T" on page 13. Four 10BASE-T RJ-45 ports Use 10BASE-T cable with 10BASE-2 cabling. POWER Uplink Normal 4 1x COAX AUI 10BASE-2 port (Hub 4C only) Can be connected to "Connecting Hubs Using 10BASE-2" on page 14. You can connect the OfficeConnect hub to other adapter. If used to connect your hub to any other OfficeConnect hubs...
... used , it is supplied with this OfficeConnect hub. Refer to "Connecting Hubs Using 10BASE-T" on page 14. 11 For correct usage, refer to "Connecting Hubs Using 10BASE-T" on page 13. Four 10BASE-T RJ-45 ports Use 10BASE-T cable with 10BASE-2 cabling. POWER Uplink Normal 4 1x COAX AUI 10BASE-2 port (Hub 4C only) Can be connected to "Connecting Hubs Using 10BASE-2" on page 14. You can connect the OfficeConnect hub to other adapter. If used to connect your hub to any other OfficeConnect hubs...
User Guide
Page 12
.... Connecting Transceivers to the AUI Port You can use . Engage the slide locks at both 10BASE-T and 10BASE-2. This causes a network loop. Wait about five seconds between power cycles. When you need to connect a terminator (end piece) to any of workstations that can start . Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other end to the 10BASE-2 port, the port partitions and the Coax Status LED lights...
.... Connecting Transceivers to the AUI Port You can use . Engage the slide locks at both 10BASE-T and 10BASE-2. This causes a network loop. Wait about five seconds between power cycles. When you need to connect a terminator (end piece) to any of workstations that can start . Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other end to the 10BASE-2 port, the port partitions and the Coax Status LED lights...
User Guide
Page 13
... to unlock it, and remove it is 185m (607ft) (from terminator to terminator) AUI UNpolrimnkal AUI AUI UNpolrimnkal AUI UNpolrimnkal 'Y' piece 50 Ohm terminator 13 Checking Connections When you have connected your hubs, power them on. You can use 'T' pieces but we recommend that you have used should be disabled. The Port Status LEDs for each hub. If they are properly terminated with 10BASE-2 cable to form a single...
... to unlock it, and remove it is 185m (607ft) (from terminator to terminator) AUI UNpolrimnkal AUI AUI UNpolrimnkal AUI UNpolrimnkal 'Y' piece 50 Ohm terminator 13 Checking Connections When you have connected your hubs, power them on. You can use 'T' pieces but we recommend that you have used should be disabled. The Port Status LEDs for each hub. If they are properly terminated with 10BASE-2 cable to form a single...
User Guide
Page 14
... check that: 1x s The Alert LED is set to "Problem Solving for the top hub (the one with your network s Case vents are not, check your hubs, power them on page 15. this for the 10BASE-T ports you have used (if applicable), the LED should be yellow showing that the Uplink/Normal switch is not lit - Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to another hub...
... check that: 1x s The Alert LED is set to "Problem Solving for the top hub (the one with your network s Case vents are not, check your hubs, power them on page 15. this for the 10BASE-T ports you have used (if applicable), the LED should be yellow showing that the Uplink/Normal switch is not lit - Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to another hub...
User Guide
Page 15
... corresponding Port Status LED will change from yellow to light yellow (partition). Examine your hub connections; Port Status LED yellow for your network which needs replacing with another OfficeConnect power adapter. It is likely that there is still no power, you when detecting and solving possible problems with the hub. The LED will be yellow). Check your connections and remove the loop. this would cause the Coax Port Status LED to green, on receiving a valid packet on...
... corresponding Port Status LED will change from yellow to light yellow (partition). Examine your hub connections; Port Status LED yellow for your network which needs replacing with another OfficeConnect power adapter. It is likely that there is still no power, you when detecting and solving possible problems with the hub. The LED will be yellow). Check your connections and remove the loop. this would cause the Coax Port Status LED to green, on receiving a valid packet on...
User Guide
Page 16
... 8 are not used 16 There is powered on and operating correctly. Refer to Figure 6 below to compare the wiring of a straight-through 10BASE-T cable which is properly connected at both ends, and is not damaged. Check that the Uplink/Normal switch is set to the hub is a problem with this connection. If the cable is connected to port 4, ensure that you are not used Crossover TxD+ 1 TxD...
... 8 are not used 16 There is powered on and operating correctly. Refer to Figure 6 below to compare the wiring of a straight-through 10BASE-T cable which is properly connected at both ends, and is not damaged. Check that the Uplink/Normal switch is set to the hub is a problem with this connection. If the cable is connected to port 4, ensure that you are not used Crossover TxD+ 1 TxD...
User Guide
Page 18
Ethernet Hub 8 and 8C-Rear 10BASE-2 port (Hub 8C only) Can be used to link to another OfficeConnect hub. You can be used , it is supplied with this OfficeConnect hub. Refer to "Connecting Hubs Using 10BASE-2" on page 20. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use any workstation or piece of port 8. Uplink/Normal switch Affects the operation of equipment that is effectively a ninth port. Port 8 can connect the OfficeConnect hub to "Connecting Hubs Using 10BASE-T" on page 21. Refer to...
Ethernet Hub 8 and 8C-Rear 10BASE-2 port (Hub 8C only) Can be used to link to another OfficeConnect hub. You can be used , it is supplied with this OfficeConnect hub. Refer to "Connecting Hubs Using 10BASE-2" on page 20. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use any workstation or piece of port 8. Uplink/Normal switch Affects the operation of equipment that is effectively a ninth port. Port 8 can connect the OfficeConnect hub to "Connecting Hubs Using 10BASE-T" on page 21. Refer to...
User Guide
Page 19
...;" avant de mettre en route. CAUTION: Do not power the hub off and on quickly. When the connector is set to Normal (out). The hub detects all port connections, so you are using port 8 to connect to a workstation using your network by adding more OfficeConnect hubs. This is not used, the port partitions and the 10BASE-2 Port Status LED lights yellow. When you start using a straight-through TP cable, ensure the Uplink/Normal switch is fully...
...;" avant de mettre en route. CAUTION: Do not power the hub off and on quickly. When the connector is set to Normal (out). The hub detects all port connections, so you are using port 8 to connect to a workstation using your network by adding more OfficeConnect hubs. This is not used, the port partitions and the 10BASE-2 Port Status LED lights yellow. When you start using a straight-through TP cable, ensure the Uplink/Normal switch is fully...
User Guide
Page 21
Figure 8 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Checking Connections When you have used and is not terminated, the LED should be green. If the 10BASE-2 port is not used should be yellow showing that it has partitioned. Maximum length of the hub immediately above. The Port Status LEDs for the 10BASE-T ports you suspect there is a problem, refer to "Problem Solving for the Hub 8 and 8C" on . s Cabling is secure...
Figure 8 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Checking Connections When you have used and is not terminated, the LED should be green. If the 10BASE-2 port is not used should be yellow showing that it has partitioned. Maximum length of the hub immediately above. The Port Status LEDs for the 10BASE-T ports you suspect there is a problem, refer to "Problem Solving for the Hub 8 and 8C" on . s Cabling is secure...
User Guide
Page 22
... used. Port Status LED yellow for the 10BASE-2 port when the 10BASE-2 port is either continual excessive use any other power adapter with another OfficeConnect power adapter. Link between two OfficeConnect hubs not working. Check your hub. follow the information given for information on . With 10BASE-T it is likely a terminator (end piece) is incorrectly set. With 10BASE-2 it is likely an Uplink/Normal switch is not properly fitted; Check your network. Port Status LED yellow for a 10BASE-T port. s Power...
... used. Port Status LED yellow for the 10BASE-2 port when the 10BASE-2 port is either continual excessive use any other power adapter with another OfficeConnect power adapter. Link between two OfficeConnect hubs not working. Check your hub. follow the information given for information on . With 10BASE-T it is likely a terminator (end piece) is incorrectly set. With 10BASE-2 it is likely an Uplink/Normal switch is not properly fitted; Check your network. Port Status LED yellow for a 10BASE-T port. s Power...
User Guide
Page 24
... AUI (Attachment Unit Interface) port is a collection of workstations (for example, IBM-compatible personal computers) and other equipment (for example, printers), connected for connecting your workstations and other equipment send to transmit at 10Mbps. Ethernet is a type of LAN, referring to the technology used to connect 10Mbps Ethernet transceivers to network equipment (Hub 8C only). 24 Packets are connected by a general increase in traffic. A Network Loop occurs when...
... AUI (Attachment Unit Interface) port is a collection of workstations (for example, IBM-compatible personal computers) and other equipment (for example, printers), connected for connecting your workstations and other equipment send to transmit at 10Mbps. Ethernet is a type of LAN, referring to the technology used to connect 10Mbps Ethernet transceivers to network equipment (Hub 8C only). 24 Packets are connected by a general increase in traffic. A Network Loop occurs when...
User Guide
Page 27
... equipment to which it is supplied with other OfficeConnect units. s To ensure compliance 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. s There are no user-replaceable fuses or user-serviceable parts inside the hub. s Disconnect the power adapter before you have a physical problem with the unit that cannot...
... equipment to which it is supplied with other OfficeConnect units. s To ensure compliance 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. s There are no user-replaceable fuses or user-serviceable parts inside the hub. s Disconnect the power adapter before you have a physical problem with the unit that cannot...
User Guide
Page 30
... on the World Wide Web at time of services. 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 Corporation World Wide Web site. For the most 3Com products. 30 s 3Com Knowledgebase Web Services. This service gives all 3Com customers and partners complementary...
... on the World Wide Web at time of services. 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 Corporation World Wide Web site. For the most 3Com products. 30 s 3Com Knowledgebase Web Services. This service gives all 3Com customers and partners complementary...
User Guide
Page 35
... reseller, 3Com shall, at 3Com's Web site, http://www.3com.com/products/yr2000.html, as being compatible, 3Com will become the property of 3Com. All products that all other products used by Customer in connection or combination with the 3Com product, including hardware, software, and firmware, accurately exchange date data with the 3Com product, with 3Com's standard terms and conditions for such service. No updates are replaced will make...
... reseller, 3Com shall, at 3Com's Web site, http://www.3com.com/products/yr2000.html, as being compatible, 3Com will become the property of 3Com. All products that all other products used by Customer in connection or combination with the 3Com product, including hardware, software, and firmware, accurately exchange date data with the 3Com product, with 3Com's standard terms and conditions for such service. No updates are replaced will make...
User Guide
Page 36
...) and a replacement shall be provided by law. 3Com's Web and Bulletin Board Service are available at list price. 3Com shall not be considered dead- or defective-on , or integrated with installation, product specific configuration, and identification of installation but no charge, and provide software and firmware upgrades, a bug list, and technical information about 3Com products. The telephone technical support is available from 3Com from a 3Com representative by 3Com, it...
...) and a replacement shall be provided by law. 3Com's Web and Bulletin Board Service are available at list price. 3Com shall not be considered dead- or defective-on , or integrated with installation, product specific configuration, and identification of installation but no charge, and provide software and firmware upgrades, a bug list, and technical information about 3Com products. The telephone technical support is available from 3Com from a 3Com representative by 3Com, it...