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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...they are registered trademarks of merchantability, satisfactory quality, and fitness for the Software. All other countries. 3Com, the 3Com logo and OfficeConnect are associated. Please e-mail any time. If you are registered in the United States and may ... the implied warranties, terms or conditions of 3Com Corporation. Unless otherwise indicated, 3Com registered trademarks are a United States government agency, then this documentation at private expense. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA05) and, ...
...they are registered trademarks of merchantability, satisfactory quality, and fitness for the Software. All other countries. 3Com, the 3Com logo and OfficeConnect are associated. Please e-mail any time. If you are registered in the United States and may ... the implied warranties, terms or conditions of 3Com Corporation. Unless otherwise indicated, 3Com registered trademarks are a United States government agency, then this documentation at private expense. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub 8, Hub 8C), part number (DUA1670-0AAA05) and, ...
User Guide
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... 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...
... 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...
User Guide
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The OfficeConnect Ethernet Hub 4, OfficeConnect Ethernet Hub 4C, OfficeConnect Ethernet Hub 8 and OfficeConnect Ethernet Hub 8C, are ideal for desktop use the stacking clip to connect another OfficeConnect hub to use the OfficeConnect hubs. The hubs have the following ports: s The Ethernet Hub 4 has four 10BASE-T ports. If you to create a small network with up to four or eight workstations, as shown in Figure 1. Figure 1 Small Network With OfficeConnect Hub and Optional...
The OfficeConnect Ethernet Hub 4, OfficeConnect Ethernet Hub 4C, OfficeConnect Ethernet Hub 8 and OfficeConnect Ethernet Hub 8C, are ideal for desktop use the stacking clip to connect another OfficeConnect hub to use the OfficeConnect hubs. The hubs have the following ports: s The Ethernet Hub 4 has four 10BASE-T ports. If you to create a small network with up to four or eight workstations, as shown in Figure 1. Figure 1 Small Network With OfficeConnect Hub and Optional...
User Guide
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... your workstations. 3 One straight-through TP cable for the chosen media type. 3Com produce a range of easy to your hub, you need : s An AUI cable. s A 10Mbps Ethernet transceiver for every workstation, as shown in Figure 2. s Four rubber feet. s A stacking clip. Your OfficeConnect hub comes with: s One power adapter for you need extra equipment. s A Product Registration...
... your workstations. 3 One straight-through TP cable for the chosen media type. 3Com produce a range of easy to your hub, you need : s An AUI cable. s A 10Mbps Ethernet transceiver for every workstation, as shown in Figure 2. s Four rubber feet. s A stacking clip. Your OfficeConnect hub comes with: s One power adapter for you need extra equipment. s A Product Registration...
User Guide
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... the same pins of the 10BASE-2 Equipment You May Need 10BASE-T If you have additional hubs you want to connect using 10BASE-2 (Hub 4C and 8C only), you need : s One straight-through TP cable for each additional hub. Figure 2 Some of the other ports. A straight-through TP cable with RJ-45 connectors. s ... pieces but 'Y' pieces provide optimal clearance of the 10BASE-T ports free. You can be shielded (screened) or unshielded; Twisted Pair (TP) Cables To connect your hubs together: s With 10BASE-2 you can use is 100m (328ft). The maximum length you can connect up to four...
... the same pins of the 10BASE-2 Equipment You May Need 10BASE-T If you have additional hubs you want to connect using 10BASE-2 (Hub 4C and 8C only), you need : s One straight-through TP cable for each additional hub. Figure 2 Some of the other ports. A straight-through TP cable with RJ-45 connectors. s ... pieces but 'Y' pieces provide optimal clearance of the 10BASE-T ports free. You can be shielded (screened) or unshielded; Twisted Pair (TP) Cables To connect your hubs together: s With 10BASE-2 you can use is 100m (328ft). The maximum length you can connect up to four...
User Guide
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... units must be stacked above larger units. Do not fix the feet if you to stack your OfficeConnect units together securely. The Stacking Clip The blue stacking clip allows you are pointing downwards. 3 Align... the fastening pieces over the slots found on each corner of the underside of your hub if you hook a finger around on your desk. Only stick the feet to the marked areas at ...unit. Stacking the Units Together The Rubber Feet The four self-adhesive rubber feet prevent your hub from moving around one of the the fastening pieces and then pull it gently from out of...
... units must be stacked above larger units. Do not fix the feet if you to stack your OfficeConnect units together securely. The Stacking Clip The blue stacking clip allows you are pointing downwards. 3 Align... the fastening pieces over the slots found on each corner of the underside of your hub if you hook a finger around on your desk. Only stick the feet to the marked areas at ...unit. Stacking the Units Together The Rubber Feet The four self-adhesive rubber feet prevent your hub from moving around one of the the fastening pieces and then pull it gently from out of...
User Guide
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...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 OfficeConnect hub. We recommend you to firmly secure a stack of OfficeConnect devices to secure. It is recommended that you ... s Cabling is away from 3Com, is the OfficeConnect Mounting Unit (part number 3C16765). Also available from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. If you mount the hubs with the LEDs facing upwards ...
...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 OfficeConnect hub. We recommend you to firmly secure a stack of OfficeConnect devices to secure. It is recommended that you ... s Cabling is away from 3Com, is the OfficeConnect Mounting Unit (part number 3C16765). Also available from power lines, fluorescent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. If you mount the hubs with the LEDs facing upwards ...
User Guide
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... only) green/yellow/orange Indicates how much your network is being used . AUI/COAX Status LEDs (Hub 4C only) green/off =COAX Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 4C Power LED green Indicates that segment. Collision LED yellow Flashes each 10BASE-T port. Alert Port Status Power ActivityCollision ...status of each time a collision is detected on which one is connected to the port or the link has failed. THE OFFICECONNECT ETHERNET HUB 4 AND 4C Ethernet Hub 4 and 4C-Front Alert LED orange Alerts you to excessive network use . green -
... only) green/yellow/orange Indicates how much your network is being used . AUI/COAX Status LEDs (Hub 4C only) green/off =COAX Network Utilization 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 4C Power LED green Indicates that segment. Collision LED yellow Flashes each 10BASE-T port. Alert Port Status Power ActivityCollision ...status of each time a collision is detected on which one is connected to the port or the link has failed. THE OFFICECONNECT ETHERNET HUB 4 AND 4C Ethernet Hub 4 and 4C-Front Alert LED orange Alerts you to excessive network use . green -
User Guide
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... port connections, so you need to connect a terminator (end piece) to any of the hub's 10BASE-T RJ-45 ports using your network by adding more OfficeConnect hubs. When you can increase the number of the AUI cable. Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other end to your network immediately. If you do not need...
... port connections, so you need to connect a terminator (end piece) to any of the hub's 10BASE-T RJ-45 ports using your network by adding more OfficeConnect hubs. When you can increase the number of the AUI cable. Connecting OfficeConnect Ethernet Hubs Together Connect workstations and other end to your network immediately. If you do not need...
User Guide
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... Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. Connecting Hubs Using 10BASE-2 Connect a 10BASE-2 'Y' piece to each cable is 0.5m (1.6ft) Maximum segment length is important that you have connected a 10Mbps Ethernet transceiver to the AUI port, the 10BASE-2 port will be off. You... can use this transceiver to connect your hubs but 'Y' pieces provide optimum clearance of the segment by fitting terminators (end pieces)....
... Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. Connecting Hubs Using 10BASE-2 Connect a 10BASE-2 'Y' piece to each cable is 0.5m (1.6ft) Maximum segment length is important that you have connected a 10Mbps Ethernet transceiver to the AUI port, the 10BASE-2 port will be off. You... can use this transceiver to connect your hubs but 'Y' pieces provide optimum clearance of the segment by fitting terminators (end pieces)....
User Guide
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... that : 1x s The Alert LED 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. If the 10BASE-2 port is not used AUI UNpolrimnkal should be yellow showing that it has partitioned. this for each... "Problem Solving for the 10BASE-T ports you suspect there is secure and not pulled taut 14 Repeat this is not lit - Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to Uplink (in) AUI UNpolrimnkal 4 Checking Connections 1x When you have used and is not ...
... that : 1x s The Alert LED 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. If the 10BASE-2 port is not used AUI UNpolrimnkal should be yellow showing that it has partitioned. this for each... "Problem Solving for the 10BASE-T ports you suspect there is secure and not pulled taut 14 Repeat this is not lit - Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to Uplink (in) AUI UNpolrimnkal 4 Checking Connections 1x When you have used and is not ...
User Guide
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... 80%) or, more likely, a 10BASE-T port has partitioned due to a loop in your OfficeConnect hub. Port Status LED yellow for your connections and remove the loop. Link between two OfficeConnect hubs not working. this port to partition. AUI/COAX Port Status LED yellow when the 10BASE-2 port...port. With 10BASE-2 it is likely an Uplink/Normal switch is usually a disconnected or damaged cable, or incorrect configuration. Examine your OfficeConnect hub. The port has partitioned. AUI/COAX Port Status LED not lit when external transceiver in which case the corresponding Port Status LED ...
... 80%) or, more likely, a 10BASE-T port has partitioned due to a loop in your OfficeConnect hub. Port Status LED yellow for your connections and remove the loop. Link between two OfficeConnect hubs not working. this port to partition. AUI/COAX Port Status LED yellow when the 10BASE-2 port...port. With 10BASE-2 it is likely an Uplink/Normal switch is usually a disconnected or damaged cable, or incorrect configuration. Examine your OfficeConnect hub. The port has partitioned. AUI/COAX Port Status LED not lit when external transceiver in which case the corresponding Port Status LED ...
User Guide
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... properly connected at both ends, and is set to port 4, ensure that the Uplink/Normal switch is not damaged. Refer to Figure 6 below to the hub is a problem with this connection. Port Status LED not lit for a 10BASE-T port that the equipment being connected to compare the wiring of a straight-through...
... properly connected at both ends, and is set to port 4, ensure that the Uplink/Normal switch is not damaged. Refer to Figure 6 below to the hub is a problem with this connection. Port Status LED not lit for a 10BASE-T port that the equipment being connected to compare the wiring of a straight-through...
User Guide
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...and the next piece of each time a packet is detected on a port. Activity LED (Hub 8 only) yellow Flashes each port. yellow - 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... 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 the hub is connected to excessive network use or an isolated (partitioned) 10BASE-T port. Collisions are part of normal network operation. 17 Network Utilization...
...and the next piece of each time a packet is detected on a port. Activity LED (Hub 8 only) yellow Flashes each port. yellow - 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... 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 the hub is connected to excessive network use or an isolated (partitioned) 10BASE-T port. Collisions are part of normal network operation. 17 Network Utilization...
User Guide
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... using port 8 to connect to a workstation using your network by adding more OfficeConnect hubs. Connecting Workstations and Other Equipment to it. If you do not need more ports, simply add more OfficeConnect hubs. 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-2. WARNHINWEIS: Bitte lesen...
... using port 8 to connect to a workstation using your network by adding more OfficeConnect hubs. Connecting Workstations and Other Equipment to it. If you do not need more ports, simply add more OfficeConnect hubs. 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-2. WARNHINWEIS: Bitte lesen...
User Guide
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...6ft) Maximum segment length is important that both ends of the segment are not, check your connections. Connecting Hubs Using 10BASE-2 Connect a 10BASE-2 'Y' piece to each of your hubs, power them on. Remember to terminator) 'Y' piece 50 Ohm terminator 20 The Port Status LEDs for each... it is 185m (607ft) (from terminator to terminate the two free ends of the other ports. To disconnect a 10BASE-2 cable, twist each hub. Connect the 'Y' pieces with 50 Ohm terminators (end pieces). Only use 'T' pieces but 'Y' pieces provide optimum clearance of the segment by fitting...
...6ft) Maximum segment length is important that both ends of the segment are not, check your connections. Connecting Hubs Using 10BASE-2 Connect a 10BASE-2 'Y' piece to each of your hubs, power them on. Remember to terminator) 'Y' piece 50 Ohm terminator 20 The Port Status LEDs for each... it is 185m (607ft) (from terminator to terminate the two free ends of the other ports. To disconnect a 10BASE-2 cable, twist each hub. Connect the 'Y' pieces with 50 Ohm terminators (end pieces). Only use 'T' pieces but 'Y' pieces provide optimum clearance of the segment by fitting...
User Guide
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...LEDs for simplicity we recommend the following method, as shown in Figure 8: 1 Starting from the bottom, connect the port 8 of the lower hub to port 7 of the hub immediately above. Spot Checks At frequent intervals, visually check that: s The Alert LED is 100m (328ft) s Case vents are not, ...connections. s Cabling is secure and not pulled taut. 21 Switch set to Uplink (in) Switch set to Uplink (in ) except for the Hub 8 and 8C" on . Connecting Hubs Using 10BASE-T You can be connected to a workstation provided that the Uplink/Normal switch is set to Normal (out). Figure 8 Correct...
...LEDs for simplicity we recommend the following method, as shown in Figure 8: 1 Starting from the bottom, connect the port 8 of the lower hub to port 7 of the hub immediately above. Spot Checks At frequent intervals, visually check that: s The Alert LED is 100m (328ft) s Case vents are not, ...connections. s Cabling is secure and not pulled taut. 21 Switch set to Uplink (in) Switch set to Uplink (in ) except for the Hub 8 and 8C" on . Connecting Hubs Using 10BASE-T You can be connected to a workstation provided that the Uplink/Normal switch is set to Normal (out). Figure 8 Correct...
User Guide
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... which case the corresponding Port Status LED will change from yellow to green, on receiving a valid packet on . Check your OfficeConnect hub. s Power off the hubs, wait about 5 seconds and then power on what to your network. Port Status LED yellow for a 10BASE-T port. With...has partitioned. this would cause the 10BASE-2 Port Status LED to your hub connections; Alert LED continuously lit. This is usually a disconnected or damaged cable, or incorrect configuration. Link between two OfficeConnect hubs not working. If there is either continual excessive use any other power...
... which case the corresponding Port Status LED will change from yellow to green, on receiving a valid packet on . Check your OfficeConnect hub. s Power off the hubs, wait about 5 seconds and then power on what to your network. Port Status LED yellow for a 10BASE-T port. With...has partitioned. this would cause the 10BASE-2 Port Status LED to your hub connections; Alert LED continuously lit. This is usually a disconnected or damaged cable, or incorrect configuration. Link between two OfficeConnect hubs not working. If there is either continual excessive use any other power...
User Guide
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... Cable Normal port Pin 1 Rx+ 2 Rx- 3 Tx+ 4 5 6 Tx- 7 8 Uplink Normal Pin port port Pin 1 1 Tx+ Rx+ 2 2 Tx- Check that the equipment being connected to the hub is powered on and operating correctly. Port Status LED not lit for a 10BASE-T port that the Uplink/Normal switch is set to Normal (out). If...
... Cable Normal port Pin 1 Rx+ 2 Rx- 3 Tx+ 4 5 6 Tx- 7 8 Uplink Normal Pin port port Pin 1 1 Tx+ Rx+ 2 2 Tx- Check that the equipment being connected to the hub is powered on and operating correctly. Port Status LED not lit for a 10BASE-T port that the Uplink/Normal switch is set to Normal (out). If...