User Guide
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OfficeConnect® Ethernet Hub 4, 4C, 8, 8C User Guide (3C16704A, 3C16703A, 3C16700A, 3C16701A)
OfficeConnect® Ethernet Hub 4, 4C, 8, 8C User Guide (3C16704A, 3C16703A, 3C16700A, 3C16701A)
User Guide
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If you are associated. All other countries. 3Com, the 3Com logo and OfficeConnect are registered trademarks of any software on removable media described in 3Com's standard commercial license for a particular purpose. 3Com may be provided to provide notification of merchantability, satisfactory quality, and fitness for the ... to make any derivative work (such as defined in any form or by any means or used to 3Com at private expense. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA04) and, if appropriate,...
If you are associated. All other countries. 3Com, the 3Com logo and OfficeConnect are registered trademarks of any software on removable media described in 3Com's standard commercial license for a particular purpose. 3Com may be provided to provide notification of merchantability, satisfactory quality, and fitness for the ... to make any derivative work (such as defined in any form or by any means or used to 3Com at private expense. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA04) and, if appropriate,...
User Guide
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...TP) Cables 7 Stacking the Units Together 8 The Rubber Feet 8 The Stacking Clip 8 Positioning Your Hub 9 Securing Your Hub 9 Using Your Hub 9 The OfficeConnect Ethernet Hub 4 and 4C 10 Ethernet Hub 4 and 4C-Front 10 Ethernet Hub 4 and 4C-Rear 11 Connecting Workstations and Other Equipment to Your Hub... 12 Connecting Transceivers to the AUI Port 12 Connecting OfficeConnect Ethernet Hubs Together 12 Connecting Hubs Using 10BASE-2 13 Checking Connections 13 Connecting Hubs Using 10BASE-T 14 Checking Connections 14 Spot ...
...TP) Cables 7 Stacking the Units Together 8 The Rubber Feet 8 The Stacking Clip 8 Positioning Your Hub 9 Securing Your Hub 9 Using Your Hub 9 The OfficeConnect Ethernet Hub 4 and 4C 10 Ethernet Hub 4 and 4C-Front 10 Ethernet Hub 4 and 4C-Rear 11 Connecting Workstations and Other Equipment to Your Hub... 12 Connecting Transceivers to the AUI Port 12 Connecting OfficeConnect Ethernet Hubs Together 12 Connecting Hubs Using 10BASE-2 13 Checking Connections 13 Connecting Hubs Using 10BASE-T 14 Checking Connections 14 Spot ...
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Consignes importantes de sécurité 29 Technical Support 30 Online Technical Services 30 World Wide Web Site 30 3Com Knowledgebase Web Services 30 Support from Your Network Supplier 31 Support from 3Com 31 Returning Products for Repair 34 3Com Corporation Limited Warranty 35 Electromagnetic Compatibility 38 4
Consignes importantes de sécurité 29 Technical Support 30 Online Technical Services 30 World Wide Web Site 30 3Com Knowledgebase Web Services 30 Support from Your Network Supplier 31 Support from 3Com 31 Returning Products for Repair 34 3Com Corporation Limited Warranty 35 Electromagnetic Compatibility 38 4
User Guide
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... four 10BASE-T ports, a 10BASE-2 port and an AUI port. When referring to the world of the OfficeConnect range which stack neatly together with 3Com® . INTRODUCTION Welcome to all products, this guide uses the term 'OfficeConnect hub'. In the modern business environment, communication and sharing information is a single repeater). These four products are...
... four 10BASE-T ports, a 10BASE-2 port and an AUI port. When referring to the world of the OfficeConnect range which stack neatly together with 3Com® . INTRODUCTION Welcome to all products, this guide uses the term 'OfficeConnect hub'. In the modern business environment, communication and sharing information is a single repeater). These four products are...
User Guide
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...feet. To connect workstations and additional OfficeConnect hubs to your hub (Hub 4C only), you need extra equipment. Transceiver Connections If you want to connect a transceiver to your hub, you need : 1 10BASE-T connections for all your equipment. 3Com produce a range of easy to ...A stacking clip. s A 10Mbps Ethernet transceiver for the chosen media type. 3Com produce a range of easy to comply with the 10BASE-T standard, ports designed for workstation connections have been marked with the OfficeConnect hub. The extra equipment listed in the next section is 50m (164ft). Workstation...
...feet. To connect workstations and additional OfficeConnect hubs to your hub (Hub 4C only), you need extra equipment. Transceiver Connections If you want to connect a transceiver to your hub, you need : 1 10BASE-T connections for all your equipment. 3Com produce a range of easy to ...A stacking clip. s A 10Mbps Ethernet transceiver for the chosen media type. 3Com produce a range of easy to comply with the 10BASE-T standard, ports designed for workstation connections have been marked with the OfficeConnect hub. The extra equipment listed in the next section is 50m (164ft). Workstation...
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Cables can use is one where the pins of one connector are connected to the same pins of the 10BASE-T ports free. The maximum length you can be shielded (screened) or unshielded; A straight-through cable is 100m (328ft). s With 10BASE-T you can connect up to 30 hubs on what ports your hub has, you can use either 10BASE-T or 10BASE-2 to connect your workstations and hubs, you use shielded. The maximum segment length is 0.5m (1.6ft). Terminator (end piece) or 'Y' piece 'T' piece 7 s Two 10BASE-2 50 Ohm terminators (end pieces). You can use 'T' pieces but 'Y' ...
Cables can use is one where the pins of one connector are connected to the same pins of the 10BASE-T ports free. The maximum length you can be shielded (screened) or unshielded; A straight-through cable is 100m (328ft). s With 10BASE-T you can connect up to 30 hubs on what ports your hub has, you can use either 10BASE-T or 10BASE-2 to connect your workstations and hubs, you use shielded. The maximum segment length is 0.5m (1.6ft). Terminator (end piece) or 'Y' piece 'T' piece 7 s Two 10BASE-2 50 Ohm terminators (end pieces). You can use 'T' pieces but 'Y' ...
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... the feet if you hook a finger around on the unit. CAUTION: You can stack up to a maximum of your hub if you to stack your OfficeConnect units together securely. To fit the clip: 1 Place your unit on each corner of the underside of four units. Figure 3 Stacking Your Units Together 1 Fastening...
... the feet if you hook a finger around on the unit. CAUTION: You can stack up to a maximum of your hub if you to stack your OfficeConnect units together securely. To fit the clip: 1 Place your unit on each corner of the underside of four units. Figure 3 Stacking Your Units Together 1 Fastening...
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.... CAUTION: Only wall mount single hubs, do not wall mount stacked hubs. Read pages 10-16 if you have an: s OfficeConnect Ethernet Hub 4 or Hub 4C Read pages 17-23 if you have an: s OfficeConnect Ethernet Hub 8 or 8C When you have connected your network. Positioning Your Hub When installing your... heads 3mm (0.12in.) clear of the unit. Securing Your Hub There are now ready to prevent dust entering the cooling vents. Also available from 3Com, is away from sources of heat. If you are 150mm (5.9in.) apart. Remove any connections to mark the position of electrical noise such as...
.... CAUTION: Only wall mount single hubs, do not wall mount stacked hubs. Read pages 10-16 if you have an: s OfficeConnect Ethernet Hub 4 or Hub 4C Read pages 17-23 if you have an: s OfficeConnect Ethernet Hub 8 or 8C When you have connected your network. Positioning Your Hub When installing your... heads 3mm (0.12in.) clear of the unit. Securing Your Hub There are now ready to prevent dust entering the cooling vents. Also available from 3Com, is away from sources of heat. If you are 150mm (5.9in.) apart. Remove any connections to mark the position of electrical noise such as...
User Guide
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... LED is green if the AUI port is received on that the hub is connected to excessive network use has been partitioned. 10 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....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 Indicates that segment. yellow - If the right-hand status LED is yellow, the port in use . green - off - AUI...
... LED is green if the AUI port is received on that the hub is connected to excessive network use has been partitioned. 10 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....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 Indicates that segment. yellow - If the right-hand status LED is yellow, the port in use . green - off - AUI...
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... media types to "Connecting Hubs Using 10BASE-T" on page 14. For correct usage, refer to be used , it is supplied with this OfficeConnect hub. Ethernet Hub 4 and 4C-Rear Power Adapter socket Only use any workstation or piece of port 4. Do not use the power adapter... that has a 10BASE-T port. You can connect the OfficeConnect hub to "Connecting Hubs Using 10BASE-2" on page 13. Refer to any other OfficeConnect hubs and equipment with RJ-45 connectors. Uplink/Normal switch Affects the operation of equipment that is effectively a fifth port.
... media types to "Connecting Hubs Using 10BASE-T" on page 14. For correct usage, refer to be used , it is supplied with this OfficeConnect hub. Ethernet Hub 4 and 4C-Rear Power Adapter socket Only use any workstation or piece of port 4. Do not use the power adapter... that has a 10BASE-T port. You can connect the OfficeConnect hub to "Connecting Hubs Using 10BASE-2" on page 13. Refer to any other OfficeConnect hubs and equipment with RJ-45 connectors. Uplink/Normal switch Affects the operation of equipment that is effectively a fifth port.
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...standard AUI cable. This causes a network loop. WARNING: Please read the 'Important Safety Information' section before you do not need more ports, simply add more OfficeConnect hubs. Connecting Transceivers to the AUI Port You can connect to your network immediately. When the connector is fully in use. Connect one end of... Wait about five seconds between power cycles. Do not connect the same two hubs together using a straight-through TP cable, ensure the Uplink/Normal switch is correct operation. 12 If you do not use the 10BASE-2 port, you start using 10BASE-T cables.
...standard AUI cable. This causes a network loop. WARNING: Please read the 'Important Safety Information' section before you do not need more ports, simply add more OfficeConnect hubs. Connecting Transceivers to the AUI Port You can connect to your network immediately. When the connector is fully in use. Connect one end of... Wait about five seconds between power cycles. Do not connect the same two hubs together using a straight-through TP cable, ensure the Uplink/Normal switch is correct operation. 12 If you do not use the 10BASE-2 port, you start using 10BASE-T cables.
User Guide
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When using 10BASE-T cable (refer to the next section). The Port Status LEDs for each hub. Figure 4 Correct Hub Connections Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. If you have used should be disabled. Only use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have connected your hubs (Hub 4C only). You can use 'T' pieces but we recommend that both ends of the segment are properly terminated with 10BASE-2 cable to form a single segment, as shown in Figure 4. Connect the 'Y' pieces with 50 Ohm terminators (end pieces). Remember to ...
When using 10BASE-T cable (refer to the next section). The Port Status LEDs for each hub. Figure 4 Correct Hub Connections Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. If you have used should be disabled. Only use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have connected your hubs (Hub 4C only). You can use 'T' pieces but we recommend that both ends of the segment are properly terminated with 10BASE-2 cable to form a single segment, as shown in Figure 4. Connect the 'Y' pieces with 50 Ohm terminators (end pieces). Remember to ...
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...This is secure and not pulled taut 14 Maximum length of each hub. 2 Set all Uplink/Normal switches to another hub). If you suspect there is the best way to find out if there are ... from the bottom, connect the port 4 of the lower hub to Normal (out). Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to port 3 of the hub immediately above. If they are not obstructed 10BASE-T cable with port 4 not connected to ... You can be green. UNpolrimnkal Spot Checks At frequent intervals, visually check that the Uplink/Normal switch is not lit -
...This is secure and not pulled taut 14 Maximum length of each hub. 2 Set all Uplink/Normal switches to another hub). If you suspect there is the best way to find out if there are ... from the bottom, connect the port 4 of the lower hub to Normal (out). Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to port 3 of the hub immediately above. If they are not obstructed 10BASE-T cable with port 4 not connected to ... You can be green. UNpolrimnkal Spot Checks At frequent intervals, visually check that the Uplink/Normal switch is not lit -
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... one connection to the external transceiver. Link between two OfficeConnect hubs not working. There is a loop in your OfficeConnect hub. It is likely that there is either continual excessive use of your OfficeConnect hub. follow the information given for information on . Check... your connections and remove the loop. With 10BASE-2 it is likely an Uplink/Normal switch is usually a disconnected or damaged cable, or incorrect configuration...
... one connection to the external transceiver. Link between two OfficeConnect hubs not working. There is a loop in your OfficeConnect hub. It is likely that there is either continual excessive use of your OfficeConnect hub. follow the information given for information on . Check... your connections and remove the loop. With 10BASE-2 it is likely an Uplink/Normal switch is usually a disconnected or damaged cable, or incorrect configuration...
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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- Also check that the Uplink/Normal switch is set to the hub is powered on and operating correctly. If the cable is connected to port 4, ensure that the equipment being connected to ...-T port that you are using a straight-through 10BASE-T cable which is properly connected at both ends, and is not damaged. Pins 4, 5, 7 and 8 are not used 16 There 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- Also check that the Uplink/Normal switch is set to the hub is powered on and operating correctly. If the cable is connected to port 4, ensure that the equipment being connected to ...-T port that you are using a straight-through 10BASE-T cable which is properly connected at both ends, and is not damaged. Pins 4, 5, 7 and 8 are not used 16 There is a problem with this connection.
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... the network. Alert Port Status Power Activity Collision 1 2 3 4 5 6 7 8 COAX Green = OK, Yellow = Partitioned Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 8C Power LED green Indicates that segment. yellow - Nothing is yellow if the port has partitioned. Collisions are part of network equipment is... LEDs (Hub 8C only) green/yellow/orange Indicates how much your network is detected on that the hub is received on . THE OFFICECONNECT ETHERNET HUB 8 AND 8C Ethernet Hub 8 and 8C-Front Alert LED orange Alerts you to the port or the link has failed...
... the network. Alert Port Status Power Activity Collision 1 2 3 4 5 6 7 8 COAX Green = OK, Yellow = Partitioned Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 8C Power LED green Indicates that segment. yellow - Nothing is yellow if the port has partitioned. Collisions are part of network equipment is... LEDs (Hub 8C only) green/yellow/orange Indicates how much your network is detected on that the hub is received on . THE OFFICECONNECT ETHERNET HUB 8 AND 8C Ethernet Hub 8 and 8C-Front Alert LED orange Alerts you to the port or the link has failed...
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Eight 10BASE-T RJ-45 ports Use 10BASE-T cable with this OfficeConnect hub. Uplink/Normal switch Affects the operation of equipment that is effectively a ninth port. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use any workstation or piece of ... "Connecting Hubs Using 10BASE-2" on page 21. 18 You can be used to connect your hub to other adapter. Port 8 can connect the OfficeConnect hub to any other OfficeConnect hubs and equipment with 10BASE-2 cabling. Do not use the power adapter that has a 10BASE-T port. For correct usage, refer to "Connecting ...
Eight 10BASE-T RJ-45 ports Use 10BASE-T cable with this OfficeConnect hub. Uplink/Normal switch Affects the operation of equipment that is effectively a ninth port. Uplink/Normal 8 1x POWER COAX Power Adapter socket Only use any workstation or piece of ... "Connecting Hubs Using 10BASE-2" on page 21. 18 You can be used to connect your hub to other adapter. Port 8 can connect the OfficeConnect hub to any other OfficeConnect hubs and equipment with 10BASE-2 cabling. Do not use the power adapter that has a 10BASE-T port. For correct usage, refer to "Connecting ...
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... or 10BASE-2 (Hub 8C only) to do not need more ports, simply add more OfficeConnect hubs. If you are using port 8 to connect to a workstation using your network by adding more OfficeConnect hubs. CAUTION: Do not power the hub off and on quickly. Connecting Workstations and Other...connections, so you can use the 10BASE-2 port, you start using a straight-through TP cable, ensure the Uplink/Normal switch is fully in and remove it . Connecting OfficeConnect Ethernet Hubs Together You can increase the number of the hub's 10BASE-T RJ-45 ports using both 10BASE-T and 10BASE...
... or 10BASE-2 (Hub 8C only) to do not need more ports, simply add more OfficeConnect hubs. If you are using port 8 to connect to a workstation using your network by adding more OfficeConnect hubs. CAUTION: Do not power the hub off and on quickly. Connecting Workstations and Other...connections, so you can use the 10BASE-2 port, you start using a straight-through TP cable, ensure the Uplink/Normal switch is fully in and remove it . Connecting OfficeConnect Ethernet Hubs Together You can increase the number of the hub's 10BASE-T RJ-45 ports using both 10BASE-T and 10BASE...
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Checking Connections When you have connected your hubs, power them on. If they are properly terminated with 10BASE-2 cable to unlock it, and remove it is 185m (607ft) (from terminator to terminator) 'Y' piece 50 Ohm terminator 20 To disconnect a 10BASE-2 cable, twist each of your connections. Connect the 'Y' pieces with 50 Ohm terminators (end pieces). Remember to each connector counter-clockwise to form a single segment, as shown in Figure 7. You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have used should be off. When ...
Checking Connections When you have connected your hubs, power them on. If they are properly terminated with 10BASE-2 cable to unlock it, and remove it is 185m (607ft) (from terminator to terminator) 'Y' piece 50 Ohm terminator 20 To disconnect a 10BASE-2 cable, twist each of your connections. Connect the 'Y' pieces with 50 Ohm terminators (end pieces). Remember to each connector counter-clockwise to form a single segment, as shown in Figure 7. You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have used should be off. When ...