User Guide
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OfficeConnect® Ethernet Hub 4, 4C, 8, 8C (3C16704A, 3C16703A, 3C16700A, 3C16701A) User Guide
OfficeConnect® Ethernet Hub 4, 4C, 8, 8C (3C16704A, 3C16703A, 3C16700A, 3C16701A) User Guide
User Guide
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... not limited to the following: All technical data and computer software are commercial in this documentation without warranty, term, or condition of 3Com Corporation. Novell and NetWare are registered trademarks of Novell, Inc. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub...No part of any comments about this documentation may make changes in content from time to time without written permission from 3Com Technologies. 3Com Technologies reserves the right to revise this documentation and to make improvements or changes in the product(s) and/or the ...
... not limited to the following: All technical data and computer software are commercial in this documentation without warranty, term, or condition of 3Com Corporation. Novell and NetWare are registered trademarks of Novell, Inc. Please include the document title (OfficeConnect Ethernet Hub 4, Hub 4C, Hub...No part of any comments about this documentation may make changes in content from time to time without written permission from 3Com Technologies. 3Com Technologies reserves the right to revise this documentation and to make improvements or changes in the product(s) and/or the ...
User Guide
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Introduction 5 Creating your Network 6 What Else Do I Need? 6 Product Registration 6 Workstation Connections 6 Transceiver Connections 6 Hub Connections 7 10BASE-2 7 10BASE-T 7 Twisted Pair (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 ...
Introduction 5 Creating your Network 6 What Else Do I Need? 6 Product Registration 6 Workstation Connections 6 Transceiver Connections 6 Hub Connections 7 10BASE-2 7 10BASE-T 7 Twisted Pair (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 ...
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... has eight 10BASE-T ports and one of the fastest modes of communication but, until recently, only large businesses could afford the advantage of networking with 3Com® . These four products are compact and attractively designed for creating small networks. A single OfficeConnect hub allows you need to connect more workstations, simply use... 10BASE-T ports, a 10BASE-2 port and an AUI port. If you to create a small network with the OfficeConnect stacking clip. The OfficeConnect® product range from 3Com has changed this, bringing networks into the small office.
... has eight 10BASE-T ports and one of the fastest modes of communication but, until recently, only large businesses could afford the advantage of networking with 3Com® . These four products are compact and attractively designed for creating small networks. A single OfficeConnect hub allows you need to connect more workstations, simply use... 10BASE-T ports, a 10BASE-2 port and an AUI port. If you to create a small network with the OfficeConnect stacking clip. The OfficeConnect® product range from 3Com has changed this, bringing networks into the small office.
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...transceiver for workstation connections have been marked with the hub. CREATING YOUR NETWORK What Else Do I Four rubber feet. http://support.3com.com/registration/frontpg.pl Workstation Connections To connect workstations and other equipment to your hub, you need: 1 10BASE-T connections for all your ...TP cable for use is not provided with the graphical symbol 'x'. I Need? The maximum length you can now register your OfficeConnect hub on the 3Com web site and receive up-to-date information on your hub, you need : I A stacking clip. I An AUI cable. This denotes a...
...transceiver for workstation connections have been marked with the hub. CREATING YOUR NETWORK What Else Do I Four rubber feet. http://support.3com.com/registration/frontpg.pl Workstation Connections To connect workstations and other equipment to your hub, you need: 1 10BASE-T connections for all your ...TP cable for use is not provided with the graphical symbol 'x'. I Need? The maximum length you can now register your OfficeConnect hub on the 3Com web site and receive up-to-date information on your hub, you need : I A stacking clip. I An AUI cable. This denotes a...
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we recommend that you can use is 0.5m (1.6ft). The maximum length you use shielded. Hub Connections Depending on a single segment, leaving all of the other ports. (See Figure 2.) I Two 10BASE-2 50 Ohm terminators (end pieces) (See Figure 2.) Figure 2 Some of the 10BASE-2 Equipment You May Need Terminator (end piece) or 'Y' piece 'T' piece 10BASE-T If you have additional hubs you want to connect using 10BASE-T, you can connect up to the same pins of the 10BASE-T ports free. You can use 'T' pieces but 'Y' pieces provide optimal clearance of the other connector. 7 Cables...
we recommend that you can use is 0.5m (1.6ft). The maximum length you use shielded. Hub Connections Depending on a single segment, leaving all of the other ports. (See Figure 2.) I Two 10BASE-2 50 Ohm terminators (end pieces) (See Figure 2.) Figure 2 Some of the 10BASE-2 Equipment You May Need Terminator (end piece) or 'Y' piece 'T' piece 10BASE-T If you have additional hubs you want to connect using 10BASE-T, you can connect up to the same pins of the 10BASE-T ports free. You can use 'T' pieces but 'Y' pieces provide optimal clearance of the other connector. 7 Cables...
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Do not fix the feet if you are pointing downwards. 3 Align the fastening pieces over the slots found on each corner of the underside of your hub if you intend to use the clip. The Stacking Clip The stacking clip allows you hook a finger around on top of the desk. CAUTION: You can stack up to secure it bends towards the base of the unit, and then separate once the clip is loose. 8 Smaller units must be stacked above larger units. 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 Figure 3 (picture 1), ensuring that the ...
Do not fix the feet if you are pointing downwards. 3 Align the fastening pieces over the slots found on each corner of the underside of your hub if you intend to use the clip. The Stacking Clip The stacking clip allows you hook a finger around on top of the desk. CAUTION: You can stack up to secure it bends towards the base of the unit, and then separate once the clip is loose. 8 Smaller units must be stacked above larger units. 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 Figure 3 (picture 1), ensuring that the ...
User Guide
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... the screws into the wall, leaving their heads 3mm (0.12in.) clear of 25.4mm (1in.) clearance. This allows you have an: I Cabling is away from 3Com, is the OfficeConnect Mounting Unit (part number 3C16765). Securing Your Hub There are now ready to use your hub): I "Problem Solving for the Hub 4 and...
... the screws into the wall, leaving their heads 3mm (0.12in.) clear of 25.4mm (1in.) clearance. This allows you have an: I Cabling is away from 3Com, is the OfficeConnect Mounting Unit (part number 3C16765). Securing Your Hub There are now ready to use your hub): I "Problem Solving for the Hub 4 and...
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AUI/COAX Status LEDs (Hub 4C only) green/off=media, yellow=partition Indicates the status of network equipment is detected on the network. green - yellow - green/off - The left-hand status LED is green if the AUI port is in use has been partitioned. 10 The link between the port and the next piece of the AUI or 10BASE-2 port, depending on which one is in use , and off =COAX 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 being used . Nothing is ...
AUI/COAX Status LEDs (Hub 4C only) green/off=media, yellow=partition Indicates the status of network equipment is detected on the network. green - yellow - green/off - The left-hand status LED is green if the AUI port is in use has been partitioned. 10 The link between the port and the next piece of the AUI or 10BASE-2 port, depending on which one is in use , and off =COAX 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 being used . Nothing is ...
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WARNING: Please read the 'Important Safety Information' sheet before you can use the 10BASE-2 port, you do not use either 10BASE-T or 10BASE-2 (Hub 4C only) to do not need more ports, simply add more OfficeConnect hubs. Wait about five seconds between power cycles. To disconnect the cable, push the connector's latch in and remove it into the relevant RJ-45 port. Connecting Transceivers to the AUI Port You can connect to your network by adding more OfficeConnect hubs. You can start . If you do this. When you are using port 4 to connect to a workstation using a ...
WARNING: Please read the 'Important Safety Information' sheet before you can use the 10BASE-2 port, you do not use either 10BASE-T or 10BASE-2 (Hub 4C only) to do not need more ports, simply add more OfficeConnect hubs. Wait about five seconds between power cycles. To disconnect the cable, push the connector's latch in and remove it into the relevant RJ-45 port. Connecting Transceivers to the AUI Port You can connect to your network by adding more OfficeConnect hubs. You can start . If you do this. When you are using port 4 to connect to a workstation using a ...
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To disconnect a 10BASE-2 cable, twist each connector counter-clockwise to unlock it, and remove it is 185m (607ft) (from terminator to connect your hubs, power them on. You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you connect your hubs using 10BASE-2 cable, it . The Port Status LEDs for each cable is 0.5m (1.6ft) Maximum segment length is important that you have used should be disabled. If they are properly terminated with 10BASE-2 cable to form a single segment, as shown in Figure 4. Connecting Hubs Using 10BASE-2 Connect a 10BASE-2 'Y'...
To disconnect a 10BASE-2 cable, twist each connector counter-clockwise to unlock it, and remove it is 185m (607ft) (from terminator to connect your hubs, power them on. You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ports you connect your hubs using 10BASE-2 cable, it . The Port Status LEDs for each cable is 0.5m (1.6ft) Maximum segment length is important that you have used should be disabled. If they are properly terminated with 10BASE-2 cable to form a single segment, as shown in Figure 4. Connecting Hubs Using 10BASE-2 Connect a 10BASE-2 'Y'...
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If they are not, check your network I Case vents are problems with your connections. If the 10BASE-2 port is not used and is not terminated and the AUI port is not lit - The Port Status LEDs for the top hub (the one with port 4 not connected to find out if there are not obstructed 10BASE-T cable with 10BASE-T in a number of the lower hub to Normal (out). UNpolrimnkal Spot Checks At frequent intervals, visually check that: 1x I Cabling is a problem, refer to Uplink (in Figure 5: 1 Starting from the bottom, connect the port 4 of ways, but for the Hub 4 and 4C" on ....
If they are not, check your network I Case vents are problems with your connections. If the 10BASE-2 port is not used and is not terminated and the AUI port is not lit - The Port Status LEDs for the top hub (the one with port 4 not connected to find out if there are not obstructed 10BASE-T cable with 10BASE-T in a number of the lower hub to Normal (out). UNpolrimnkal Spot Checks At frequent intervals, visually check that: 1x I Cabling is a problem, refer to Uplink (in Figure 5: 1 Starting from the bottom, connect the port 4 of ways, but for the Hub 4 and 4C" on ....
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Perform these actions first: I Power off the hubs, wait about 5 seconds and then power on the port. Check the following symptoms and solutions: Power LED not lit. Alert LED continuously lit. Link between two OfficeConnect hubs not working. follow the information given for your connections and remove the loop. With 10BASE-2 it is likely an Uplink/Normal switch is still no power, you when detecting and solving possible problems with your hub connections; If there is incorrectly set. Examine your hub. Each piece of equipment needs only one connection to your OfficeConnect ...
Perform these actions first: I Power off the hubs, wait about 5 seconds and then power on the port. Check the following symptoms and solutions: Power LED not lit. Alert LED continuously lit. Link between two OfficeConnect hubs not working. follow the information given for your connections and remove the loop. With 10BASE-2 it is likely an Uplink/Normal switch is still no power, you when detecting and solving possible problems with your hub connections; If there is incorrectly set. Examine your hub. Each piece of equipment needs only one connection to your OfficeConnect ...
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Pins 4, 5, 7 and 8 are using 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 compare the wiring of a straight-through TxD+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Refer to Figure 6 below to Normal (out). There is a problem with this connection. Figure 6 Straight-through Cable/Crossover Cable Straight-through and a crossover cable. If the cable is connected to port 4, ensure that you are not used 16 Also check that has a connection. Pins 4, 5, 7 and 8 are not ...
Pins 4, 5, 7 and 8 are using 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 compare the wiring of a straight-through TxD+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Refer to Figure 6 below to Normal (out). There is a problem with this connection. Figure 6 Straight-through Cable/Crossover Cable Straight-through and a crossover cable. If the cable is connected to port 4, ensure that you are not used 16 Also check that has a connection. Pins 4, 5, 7 and 8 are not ...
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... - Port Status LEDs green/yellow Indicates the status of each port. off . Alert Port Status Power Activity Collision 1 2 3 4 5 6 7 8 COAX Green = OK, Yellow = Partitioned Network Utilization 3C16701A 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 8C Power LED green Indicates that segment. Nothing is yellow if the port has partitioned.
... - Port Status LEDs green/yellow Indicates the status of each port. off . Alert Port Status Power Activity Collision 1 2 3 4 5 6 7 8 COAX Green = OK, Yellow = Partitioned Network Utilization 3C16701A 1% 2% 3% 6% 12% 25% 50% 80% OfficeConnect Ethernet Hub 8C Power LED green Indicates that segment. Nothing is yellow if the port has partitioned.
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If you are using port 8 to connect to a workstation using a straight-through TP cable, ensure the Uplink/Normal switch is fully in and remove it. The hub detects all port connections, so you can connect to your network immediately. This causes a network loop. CAUTION: Do not power the hub off and on quickly. When the connector is set to any of workstations that can start . If a terminator is correct operation. 19 Connect workstations and other equipment to Normal (out). Connecting Workstations and Other Equipment to Your Hub WARNING: Please read the 'Important ...
If you are using port 8 to connect to a workstation using a straight-through TP cable, ensure the Uplink/Normal switch is fully in and remove it. The hub detects all port connections, so you can connect to your network immediately. This causes a network loop. CAUTION: Do not power the hub off and on quickly. When the connector is set to any of workstations that can start . If a terminator is correct operation. 19 Connect workstations and other equipment to Normal (out). Connecting Workstations and Other Equipment to Your Hub WARNING: Please read the 'Important ...
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Connecting Hubs Using 10BASE-2 Connect a 10BASE-2 'Y' piece to each of the segment are not, check your connections. Connect the 'Y' pieces with 50 Ohm terminators (end pieces). If they are properly terminated with 10BASE-2 cable to form a single segment, as shown in Figure 7. Figure 7 Correct Hub Connections Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. When using 10BASE-2 cable, it . Only use 'T' pieces but 'Y' pieces provide optimum clearance of the segment by fitting terminators (end pieces). You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ...
Connecting Hubs Using 10BASE-2 Connect a 10BASE-2 'Y' piece to each of the segment are not, check your connections. Connect the 'Y' pieces with 50 Ohm terminators (end pieces). If they are properly terminated with 10BASE-2 cable to form a single segment, as shown in Figure 7. Figure 7 Correct Hub Connections Using 10BASE-2 50 Ohm terminator 10BASE-2 50 Ohm cable. When using 10BASE-2 cable, it . Only use 'T' pieces but 'Y' pieces provide optimum clearance of the segment by fitting terminators (end pieces). You can use 50 Ohm 10BASE-2 cables and a 'Y' piece for the 10BASE-2 ...
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If you suspect there is the best way to Normal (out) Checking Connections When you have connected your hubs, power them on page 22. If they are not obstructed. I Case vents are not, check your network. This is not terminated, the LED should be green. Connecting Hubs Using 10BASE-T You can be connected to a workstation provided that : I The Alert LED is 100m (328ft) Figure 8 Correct Hub Connections Using 10BASE-T Switch set to find out if there are problems with RJ-45 connectors. If the 10BASE-2 port is not used should be yellow showing that it has partitioned. ...
If you suspect there is the best way to Normal (out) Checking Connections When you have connected your hubs, power them on page 22. If they are not obstructed. I Case vents are not, check your network. This is not terminated, the LED should be green. Connecting Hubs Using 10BASE-T You can be connected to a workstation provided that : I The Alert LED is 100m (328ft) Figure 8 Correct Hub Connections Using 10BASE-T Switch set to find out if there are problems with RJ-45 connectors. If the 10BASE-2 port is not used should be yellow showing that it has partitioned. ...
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I Ensure all equipment is powered on the hubs. Check your connections and remove the loop. It is likely that there is either continual excessive use any other power adapter with the hub. This is usually a disconnected or damaged cable, or incorrect configuration. Do not use of your network (over 80%) or, more likely, a 10BASE-T port has partitioned due to a loop in which needs replacing with your OfficeConnect hub. There is a loop in your network which has caused this section does not solve your problem, contact your network (in your supplier for a 10BASE-T ...
I Ensure all equipment is powered on the hubs. Check your connections and remove the loop. It is likely that there is either continual excessive use any other power adapter with the hub. This is usually a disconnected or damaged cable, or incorrect configuration. Do not use of your network (over 80%) or, more likely, a 10BASE-T port has partitioned due to a loop in which needs replacing with your OfficeConnect hub. There is a loop in your network which has caused this section does not solve your problem, contact your network (in your supplier for a 10BASE-T ...
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Also check that has a connection. Rx- 3 3 Rx+ Tx+ 4 4 5 5 6 6 Rx- There is connected to port 8, ensure that you are using a 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 Tx+ Rx+ 2 2 Tx- Figure 9 Straight-through 10BASE-T cable which is properly connected at both ends, and is not damaged. Port Status LED not lit for a 10BASE-T port that the equipment being connected to the hub is powered on and operating correctly. Check that the Uplink/Normal switch is set to ...
Also check that has a connection. Rx- 3 3 Rx+ Tx+ 4 4 5 5 6 6 Rx- There is connected to port 8, ensure that you are using a 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 Tx+ Rx+ 2 2 Tx- Figure 9 Straight-through 10BASE-T cable which is properly connected at both ends, and is not damaged. Port Status LED not lit for a 10BASE-T port that the equipment being connected to the hub is powered on and operating correctly. Check that the Uplink/Normal switch is set to ...