User Guide
Page 3
... Connecting Hubs Using 10BASE-2 13 Checking Connections 13 Connecting Hubs Using 10BASE-T 14 Checking Connections 14 Spot Checks 14 Problem Solving for the Hub 4 and 4C 15 The OfficeConnect Ethernet Hub 8 and 8C 17 Ethernet Hub 8 and 8C-Front 17 Ethernet Hub 8 and 8C-Rear 18 ...Connecting Workstations and Other Equipment to Your Hub 19 Connecting OfficeConnect Ethernet Hubs Together 19 Connecting Hubs Using 10BASE-2 20 Checking Connections 20 Connecting Hubs Using 10BASE-T 21 Checking Connections 21 Spot Checks 21 Problem Solving for the Hub 8 and 8C 22 Networking Terminology 24 ...
... Connecting Hubs Using 10BASE-2 13 Checking Connections 13 Connecting Hubs Using 10BASE-T 14 Checking Connections 14 Spot Checks 14 Problem Solving for the Hub 4 and 4C 15 The OfficeConnect Ethernet Hub 8 and 8C 17 Ethernet Hub 8 and 8C-Front 17 Ethernet Hub 8 and 8C-Rear 18 ...Connecting Workstations and Other Equipment to Your Hub 19 Connecting OfficeConnect Ethernet Hubs Together 19 Connecting Hubs Using 10BASE-2 20 Checking Connections 20 Connecting Hubs Using 10BASE-T 21 Checking Connections 21 Spot Checks 21 Problem Solving for the Hub 8 and 8C 22 Networking Terminology 24 ...
User Guide
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...1in.) clearance. 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 provide a minimum of the wall surface. We recommend you have connected your hub): s "Problem Solving for the Hub 4 and... you suspect there is the OfficeConnect Mounting Unit (part number 3C16765). s Air flow around the unit and through the vents in a rack. You need two suitable screws. s Water or moisture cannot enter the case of the case is away from 3Com, is a problem, refer to prevent dust entering...
...1in.) clearance. 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 provide a minimum of the wall surface. We recommend you have connected your hub): s "Problem Solving for the Hub 4 and... you suspect there is the OfficeConnect Mounting Unit (part number 3C16765). s Air flow around the unit and through the vents in a rack. You need two suitable screws. s Water or moisture cannot enter the case of the case is away from 3Com, is a problem, refer to prevent dust entering...
User Guide
Page 14
... and not pulled taut 14 Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to "Problem Solving for the Hub 4 and 4C" on . This is not lit - this for each cable is 100m (328ft) s Cabling is a problem, refer to Normal (out). Repeat this is set to Uplink (in... with RJ-45 connectors. Maximum length of each hub. 2 Set all Uplink/Normal switches to Uplink (in Figure 5: 1 Starting from the bottom, connect the port 4 of the lower hub to find out if there are problems with your network s Case vents are not, check your hubs, power them on ...
... and not pulled taut 14 Figure 5 Correct Hub Connections Using 10BASE-T Switch set to Normal (out) Switches set to "Problem Solving for the Hub 4 and 4C" on . This is not lit - this for each cable is 100m (328ft) s Cabling is a problem, refer to Normal (out). Repeat this is set to Uplink (in... with RJ-45 connectors. Maximum length of each hub. 2 Set all Uplink/Normal switches to Uplink (in Figure 5: 1 Starting from the bottom, connect the port 4 of the lower hub to find out if there are problems with your network s Case vents are not, check your hubs, power them on ...
User Guide
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...Check your power adapter connection. Ensure both slide locks are rarely serious, the cause is a loop in your OfficeConnect hub. PROBLEM SOLVING FOR THE HUB 4 AND 4C The OfficeConnect hub has been designed to aid you may have a faulty power adapter which needs replacing with another... two OfficeConnect hubs not working. If there is correctly connected to the hub and to light yellow (partition). Check the following symptoms and solutions: Power LED not lit. Alert LED continuously lit. These problems are engaged. With 10BASE-2 it is likely an Uplink/Normal switch is ...
...Check your power adapter connection. Ensure both slide locks are rarely serious, the cause is a loop in your OfficeConnect hub. PROBLEM SOLVING FOR THE HUB 4 AND 4C The OfficeConnect hub has been designed to aid you may have a faulty power adapter which needs replacing with another... two OfficeConnect hubs not working. If there is correctly connected to the hub and to light yellow (partition). Check the following symptoms and solutions: Power LED not lit. Alert LED continuously lit. These problems are engaged. With 10BASE-2 it is likely an Uplink/Normal switch is ...
User Guide
Page 16
... Crossover TxD+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Also check that the Uplink/Normal switch is not damaged. Refer to Figure 6 below to the hub is a problem with this connection. Pins 4, 5, 7 and 8 are not used 16 There is powered on and operating correctly. If the cable is connected to port 4, ensure that...
... Crossover TxD+ 1 TxD- 2 RxD+ 3 RxD- 6 1 TxD+ 2 TxD3 RxD+ 6 RxD- Also check that the Uplink/Normal switch is not damaged. Refer to Figure 6 below to the hub is a problem with this connection. Pins 4, 5, 7 and 8 are not used 16 There is powered on and operating correctly. If the cable is connected to port 4, ensure that...
User Guide
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... check your hubs, power them on page 22. Connecting Hubs Using 10BASE-T You can be connected to a workstation provided that the Uplink/Normal switch is set to "Problem Solving for the Hub 8 and 8C" on . This unused port can connect hubs together with 10BASE-T in a number of the lower hub... to Normal (out). If you suspect there is a problem, refer to Uplink (in ) Switch set to port 7 of each hub. 2 Set all Uplink/Normal switches to Uplink (in Figure 8: 1 Starting from the bottom, connect the port 8 of ways, but for simplicity...
... check your hubs, power them on page 22. Connecting Hubs Using 10BASE-T You can be connected to a workstation provided that the Uplink/Normal switch is set to "Problem Solving for the Hub 8 and 8C" on . This unused port can connect hubs together with 10BASE-T in a number of the lower hub... to Normal (out). If you suspect there is a problem, refer to Uplink (in ) Switch set to port 7 of each hub. 2 Set all Uplink/Normal switches to Uplink (in Figure 8: 1 Starting from the bottom, connect the port 8 of ways, but for simplicity...
User Guide
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... hub. With 10BASE-2 it is likely an Uplink/Normal switch is correct operation. Check the following symptoms and solutions: Power LED not lit. There is a loop in which needs replacing with another OfficeConnect power adapter. It is likely that there is either continual...likely a terminator (end piece) is usually a disconnected or damaged cable, or incorrect configuration. This is incorrectly set. PROBLEM SOLVING FOR THE HUB 8 AND 8C The OfficeConnect hub has been designed to do next. Check your connections and remove the loop. follow the information given for a ...
... hub. With 10BASE-2 it is likely an Uplink/Normal switch is correct operation. Check the following symptoms and solutions: Power LED not lit. There is a loop in which needs replacing with another OfficeConnect power adapter. It is likely that there is either continual...likely a terminator (end piece) is usually a disconnected or damaged cable, or incorrect configuration. This is incorrectly set. PROBLEM SOLVING FOR THE HUB 8 AND 8C The OfficeConnect hub has been designed to do next. Check your connections and remove the loop. follow the information given for a ...
User Guide
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...-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 Rx- Also check that the Uplink/Normal switch is a problem with this connection. Refer to Figure 9 below to Normal (out). Figure 9 Straight-through and a crossover cable. Rx+ 2 2 Rx+ Rx- 3 3 Tx- Check that has a connection. Tx...
...-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 Rx- Also check that the Uplink/Normal switch is a problem with this connection. Refer to Figure 9 below to Normal (out). Figure 9 Straight-through and a crossover cable. Rx+ 2 2 Rx+ Rx- 3 3 Tx- Check that has a connection. Tx...
User Guide
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The OfficeConnect hub uses RJ-45 type connectors for connecting your workstations and other equipment send to the Ethernet protocol that runs over Twisted Pair (TP) cable ... break the loop. Packets are connected by a general increase in traffic. A Local Area Network (LAN) is a network, usually in collisions can indicate a problem with 10BASE-2 cable, via single speed hubs, the entire cable forms a single segment. When you join equipment together with a device, particularly if it is not accompanied by more than...
The OfficeConnect hub uses RJ-45 type connectors for connecting your workstations and other equipment send to the Ethernet protocol that runs over Twisted Pair (TP) cable ... break the loop. Packets are connected by a general increase in traffic. A Local Area Network (LAN) is a network, usually in collisions can indicate a problem with 10BASE-2 cable, via single speed hubs, the entire cable forms a single segment. When you join equipment together with a device, particularly if it is not accompanied by more than...
User Guide
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...OfficeConnect hub with international safety standards, only use the power adapter that you must read the following safety information carefully before moving the unit. They cannot be near to the unit and easily accessible. The conditions are only maintained if the equipment to which it is supplied with problem...installation and removal of the unit. Only connect RJ-45 data connectors to these sockets. 27 s To ensure compliance with other OfficeConnect units. s This unit operates under SELV conditions. s The socket outlet must be solved with the unit. If you install...
...OfficeConnect hub with international safety standards, only use the power adapter that you must read the following safety information carefully before moving the unit. They cannot be near to the unit and easily accessible. The conditions are only maintained if the equipment to which it is supplied with problem...installation and removal of the unit. Only connect RJ-45 data connectors to these sockets. 27 s To ensure compliance with other OfficeConnect units. s This unit operates under SELV conditions. s The socket outlet must be solved with the unit. If you install...
User Guide
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...assistance with installation, product specific configuration, and identification of equipment problems. Please refer to the Technical Support appendix in , stored on, or integrated with any products returned to 3Com within fifteen (15) days after 3Com's verification of the DOA product, but no charge, and ...safe shipment, and it will be considered dead- Dead- This OfficeConnect® product comes with telephone technical support for ninety (90) days. LIMITATION OF LIABILITY TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY, WHETHER BASED...
...assistance with installation, product specific configuration, and identification of equipment problems. Please refer to the Technical Support appendix in , stored on, or integrated with any products returned to 3Com within fifteen (15) days after 3Com's verification of the DOA product, but no charge, and ...safe shipment, and it will be considered dead- Dead- This OfficeConnect® product comes with telephone technical support for ninety (90) days. LIMITATION OF LIABILITY TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY, WHETHER BASED...
User Guide
Page 38
... may cause harmful interference to radio communications. However, there is no guarantee that equipment and receiver are designed to Identify and Resolve Radio-TV Interference Problems This booklet is encouraged to try to the receiver. s Move the equipment away from the U.S. s Plug the equipment into a different outlet so that interference will...
... may cause harmful interference to radio communications. However, there is no guarantee that equipment and receiver are designed to Identify and Resolve Radio-TV Interference Problems This booklet is encouraged to try to the receiver. s Move the equipment away from the U.S. s Plug the equipment into a different outlet so that interference will...