User Guide
Page 1
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
Page 2
... FAR 2.101(a) and as such is furnished under a license agreement included with , this documentation without written permission from 3Com Technologies. 3Com Technologies reserves the right to you . All other countries. 3Com, the 3Com logo and OfficeConnect are provided in conjunction with the product as are registered trademarks of any kind, either implied or expressed, including...
... FAR 2.101(a) and as such is furnished under a license agreement included with , this documentation without written permission from 3Com Technologies. 3Com Technologies reserves the right to you . All other countries. 3Com, the 3Com logo and OfficeConnect are provided in conjunction with the product as are registered trademarks of any kind, either implied or expressed, including...
User Guide
Page 3
...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 ...
User Guide
Page 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
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
Page 5
...; product range from 3Com has changed this user guide contains general and specific information. These four products are part of the OfficeConnect range which stack neatly together with up to four or eight workstations, as shown in Figure 1. A single OfficeConnect hub allows you need to connect..., only large businesses could afford the advantage of networking with 3Com® . s The Ethernet Hub 8C has eight 10BASE-T ports and a ninth 10BASE-2 port. 5 Computer networks have proved to all products, this guide uses the term 'OfficeConnect hub'. If you to form a stack (each hub is...
...; product range from 3Com has changed this user guide contains general and specific information. These four products are part of the OfficeConnect range which stack neatly together with up to four or eight workstations, as shown in Figure 1. A single OfficeConnect hub allows you need to connect..., only large businesses could afford the advantage of networking with 3Com® . s The Ethernet Hub 8C has eight 10BASE-T ports and a ninth 10BASE-2 port. 5 Computer networks have proved to all products, this guide uses the term 'OfficeConnect hub'. If you to form a stack (each hub is...
User Guide
Page 6
...connections have been marked with the hub. Transceiver Connections If you need: s An AUI cable. s An OfficeConnect Network Assistant CD-ROM. s A 10Mbps Ethernet transceiver for the chosen media type. 3Com produce a range of easy to fill out and return. s A stacking clip. This denotes a crossover in... the next section is 50m (164ft). Your OfficeConnect hub comes with: s One power adapter for use with network support ...
...connections have been marked with the hub. Transceiver Connections If you need: s An AUI cable. s An OfficeConnect Network Assistant CD-ROM. s A 10Mbps Ethernet transceiver for the chosen media type. 3Com produce a range of easy to fill out and return. s A stacking clip. This denotes a crossover in... the next section is 50m (164ft). Your OfficeConnect hub comes with: s One power adapter for use with network support ...
User Guide
Page 7
You can use 'T' pieces but 'Y' pieces provide optimal clearance of the other connector. The minimum cable length you can use is 185m (607ft). The maximum segment length is 0.5m (1.6ft). s One 10BASE-2 'Y' piece for each extra hub. s Two 10BASE-2 50 Ohm terminators (end pieces). Hub Connections Depending on a single segment, leaving all of the 10BASE-T ports free. Twisted Pair (TP) Cables To connect your hubs together: s With 10BASE-2 you can use shielded. A straight-through cable is 100m (328ft). Cables can connect up to the same pins of one connector are ...
You can use 'T' pieces but 'Y' pieces provide optimal clearance of the other connector. The minimum cable length you can use is 185m (607ft). The maximum segment length is 0.5m (1.6ft). s One 10BASE-2 'Y' piece for each extra hub. s Two 10BASE-2 50 Ohm terminators (end pieces). Hub Connections Depending on a single segment, leaving all of the 10BASE-T ports free. Twisted Pair (TP) Cables To connect your hubs together: s With 10BASE-2 you can use shielded. A straight-through cable is 100m (328ft). Cables can connect up to the same pins of one connector are ...
User Guide
Page 8
... Your Units Together 1 Fastening 2 Piece Fastening Piece To remove the clip: 1 Remove the top unit together with the clip. If you intend to stack your OfficeConnect units together securely. To fit the clip: 1 Place your unit on a flat surface. 2 Fit the clip across the top of the unit, as shown in...
... Your Units Together 1 Fastening 2 Piece Fastening Piece To remove the clip: 1 Remove the top unit together with the clip. If you intend to stack your OfficeConnect units together securely. To fit the clip: 1 Place your unit on a flat surface. 2 Fit the clip across the top of the unit, as shown in...
User Guide
Page 9
... in the side of the wall surface. Fix the screws into the wall, leaving their heads 3mm (0.12in.) clear of the case is away from 3Com, is smooth, flat, dry and sturdy. s Water or moisture cannot enter the case of the holes. If you mount the hubs with the LEDs facing... template at the back of this guide to prevent dust entering the cooling vents. 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 equipment, you are going to create your...
... in the side of the wall surface. Fix the screws into the wall, leaving their heads 3mm (0.12in.) clear of the case is away from 3Com, is smooth, flat, dry and sturdy. s Water or moisture cannot enter the case of the holes. If you mount the hubs with the LEDs facing... template at the back of this guide to prevent dust entering the cooling vents. 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 equipment, you are going to create your...
User Guide
Page 10
...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. Network Utilization LEDs (Hub 4C only) green/yellow/orange Indicates how much your network is powered... on. yellow - If the right-hand status LED is connected to the port. 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...
...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. Network Utilization LEDs (Hub 4C only) green/yellow/orange Indicates how much your network is powered... on. yellow - If the right-hand status LED is connected to the port. 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...
User Guide
Page 11
...14. Uplink/Normal switch Affects the operation of different media types to other adapter. If used to connect your hub to be used , it is supplied with this OfficeConnect hub. Connecting a transceiver automatically disables the 10BASE-2 port. You can connect the OfficeConnect hub to "...Connecting Hubs Using 10BASE-T" on page 13. Refer to any other OfficeConnect hubs and equipment with RJ-45 connectors. For...
...14. Uplink/Normal switch Affects the operation of different media types to other adapter. If used to connect your hub to be used , it is supplied with this OfficeConnect hub. Connecting a transceiver automatically disables the 10BASE-2 port. You can connect the OfficeConnect hub to "...Connecting Hubs Using 10BASE-T" on page 13. Refer to any other OfficeConnect hubs and equipment with RJ-45 connectors. For...
User Guide
Page 12
... You can use the 10BASE-2 port, you are using port 4 to connect to a workstation using a straight-through TP cable, ensure the Uplink/Normal switch is set to your hub (Hub 4C only), using a standard AUI cable. If the AUI port is not used and a terminator is in use. ... connect to it into the relevant RJ-45 port. Connect one end of workstations that can connect a 10Mbps Ethernet transceiver to Normal (out). Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other end to any of the AUI cable. Do not connect the same two hubs together using both ends...
... You can use the 10BASE-2 port, you are using port 4 to connect to a workstation using a straight-through TP cable, ensure the Uplink/Normal switch is set to your hub (Hub 4C only), using a standard AUI cable. If the AUI port is not used and a terminator is in use. ... connect to it into the relevant RJ-45 port. Connect one end of workstations that can connect a 10Mbps Ethernet transceiver to Normal (out). Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other end to any of the AUI cable. Do not connect the same two hubs together using both ends...
User Guide
Page 13
Only use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have used should be disabled. To disconnect a 10BASE-2 cable, twist each hub. When using 10BASE-T cable (refer to the next section). The Port Status LEDs for each connector counter-clockwise 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 You can use 'T' pieces but we recommend that both ends of the segment are not, check your hubs, power them on. Connect the 'Y' pieces with ...
Only use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have used should be disabled. To disconnect a 10BASE-2 cable, twist each hub. When using 10BASE-T cable (refer to the next section). The Port Status LEDs for each connector counter-clockwise 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 You can use 'T' pieces but we recommend that both ends of the segment are not, check your hubs, power them on. Connect the 'Y' pieces with ...
User Guide
Page 14
... in ) AUI UNpolrimnkal 4 Checking Connections 1x When you have connected your connections. Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to another hub). Connecting Hubs Using 10BASE-T You can be green. Repeat this is AUI 1x correct operation. The...At frequent intervals, visually check that it has partitioned. This is the best way to a workstation provided that the Uplink/Normal switch is secure and not pulled taut 14 Maximum length of the hub immediately above. This unused port can connect hubs together with...
... in ) AUI UNpolrimnkal 4 Checking Connections 1x When you have connected your connections. Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to another hub). Connecting Hubs Using 10BASE-T You can be green. Repeat this is AUI 1x correct operation. The...At frequent intervals, visually check that it has partitioned. This is the best way to a workstation provided that the Uplink/Normal switch is secure and not pulled taut 14 Maximum length of the hub immediately above. This unused port can connect hubs together with...
User Guide
Page 15
...s Power off the hubs, wait about 5 seconds and then power on . Check your OfficeConnect hub. It is likely that there is incorrectly set. With 10BASE-2 it is likely an Uplink/Normal switch is a loop in which needs replacing with the hub. Ensure both slide locks are rarely...not solve your problem, contact your supplier for a 10BASE-T port. If this port to a loop in use any other power adapter with another OfficeConnect power adapter. With 10BASE-T it is likely a terminator (end piece) is usually a disconnected or damaged cable, or incorrect configuration. Do not use...
...s Power off the hubs, wait about 5 seconds and then power on . Check your OfficeConnect hub. It is likely that there is incorrectly set. With 10BASE-2 it is likely an Uplink/Normal switch is a loop in which needs replacing with the hub. Ensure both slide locks are rarely...not solve your problem, contact your supplier for a 10BASE-T port. If this port to a loop in use any other power adapter with another OfficeConnect power adapter. With 10BASE-T it is likely a terminator (end piece) is usually a disconnected or damaged cable, or incorrect configuration. Do not use...
User Guide
Page 16
... of a straight-through 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. Pins 4, 5, 7 and 8 are not used 16 Figure 6 Straight-through Cable/Crossover Cable Straight-through and a crossover cable. Pins 4, 5, 7 and 8 are not used Crossover...
... of a straight-through 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. Pins 4, 5, 7 and 8 are not used 16 Figure 6 Straight-through Cable/Crossover Cable Straight-through and a crossover cable. Pins 4, 5, 7 and 8 are not used Crossover...
User Guide
Page 17
...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 powered on the network. The 10BASE-2 port LED (Hub 8C only) can only ... or an isolated (partitioned) 10BASE-T port. Activity LED (Hub 8 only) yellow Flashes each port. It is yellow if the port has partitioned. 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.
...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 powered on the network. The 10BASE-2 port LED (Hub 8C only) can only ... or an isolated (partitioned) 10BASE-T port. Activity LED (Hub 8 only) yellow Flashes each port. It is yellow if the port has partitioned. 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.
User Guide
Page 18
...adapter that has a 10BASE-T port. Port 8 can connect the OfficeConnect hub to any other OfficeConnect hubs and equipment with RJ-45 connectors. You can be used to connect your hub to other adapter. 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 to another OfficeConnect hub. If used, it is supplied with this OfficeConnect hub. Refer to "...
...adapter that has a 10BASE-T port. Port 8 can connect the OfficeConnect hub to any other OfficeConnect hubs and equipment with RJ-45 connectors. You can be used to connect your hub to other adapter. 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 to another OfficeConnect hub. If used, it is supplied with this OfficeConnect hub. Refer to "...
User Guide
Page 19
... you are using port 8 to connect to it into the relevant RJ-45 port. If you do not need more ports, simply add more OfficeConnect hubs. AVERTISSEMENT: Veuillez lire attentivement la section "Consignes importantes de sécurité" avant de mettre en route. Do not connect the same two... hubs together using a straight-through TP cable, ensure the Uplink/Normal switch is fully in and remove it. To disconnect the cable, push the connector's latch in , its latch locks it . Connecting Workstations and Other ...
... you are using port 8 to connect to it into the relevant RJ-45 port. If you do not need more ports, simply add more OfficeConnect hubs. AVERTISSEMENT: Veuillez lire attentivement la section "Consignes importantes de sécurité" avant de mettre en route. Do not connect the same two... hubs together using a straight-through TP cable, ensure the Uplink/Normal switch is fully in and remove it. To disconnect the cable, push the connector's latch in , its latch locks it . Connecting Workstations and Other ...
User Guide
Page 20
Connect the 'Y' pieces with 50 Ohm terminators (end pieces). Remember to terminate the two free ends of your connections. Only use 'T' pieces but 'Y' pieces provide optimum clearance of the segment are not, check your hubs (Hub 8C only). The Port Status LEDs for each connector counter-clockwise to unlock it, and remove it is 185m (607ft) (from terminator to terminator) 'Y' piece 50 Ohm terminator 20 When using 10BASE-2 cable, it . You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have used should be off. If they are properly terminated ...
Connect the 'Y' pieces with 50 Ohm terminators (end pieces). Remember to terminate the two free ends of your connections. Only use 'T' pieces but 'Y' pieces provide optimum clearance of the segment are not, check your hubs (Hub 8C only). The Port Status LEDs for each connector counter-clockwise to unlock it, and remove it is 185m (607ft) (from terminator to terminator) 'Y' piece 50 Ohm terminator 20 When using 10BASE-2 cable, it . You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you have used should be off. If they are properly terminated ...