ALH-616ds AcerHub Dual-Speed Ethernet Hub User's Guide
Quick Installation Guide 1. Unpack the AcerHub ALH-616ds dual-speed Hub and it'saccessories (refer section 1.3). 2. Connect the Hub to the external Power supply (refer to section 2.4.1) 3. Use the normal ports to connect to PCs and computers. 4. Use the uplink port to connect to another hub or LAN switch.
1.Overview Congratulations on your purchase of the AcerHub 616ds. The AcerHub ALH- 616ds is a 16-port dual-speed fast Ethernet repeater hub for connection with multiple PCs to a workgroup LAN (Local Area Network) environment to sharenetwork resources. 1.1 Product goal AcerHub ALH-616ds provides high-speed and easy access to the LAN and Intranet both for SOHO (Small Office/ Home Office) and corporations.
large network,refer section 3.1 for details.) • Built-in switch auto-disable function to avoid data looping when stacking • External switching power supply for lower power consumption and heat emission • Compact design for SOHO desktop environment for easy networking 1.3 Product configuration The product configuration inside the package is shown in the figure 1-1.Please check the contents of the package if there is any missing part beforeusing the hub.
2.Make Your Hub Ready This chapter will guide you through how to install the AcerHub ALH-616ds. It includes procedures for connecting to the external power supply, installing the hub on your working surface, connecting the Hub to your computer, and guidelines to see if it works well. Before setting up your hub, please take note of the front and rear panel of this hub, as shown in Figure 2-Aand 2B.
Figure 2-1 Get the hub and power adapter 2.1.2 Place the hub on the desktop and remove the packing box of the power adapter, as shown in Figure 2-2.
2.1.3 Verify it's a 5V,3A power adapter by looking at the indicating label. If the adapter is correct, please stretch the cable and plug the cord into the power jack of the hub, as shown in Figure 2-3. AcerSOHO Series Figure 2-3 Connect to the power adapter 2.1.4 Once the hub is connected to the power adapter, please connect the power adapter to a power cord, as shown in Figure 2-4.
2.1.5 Plug the power cord into the outlet on the wall and check if the power LED lights up. If it lights up, then the hub is ready to be connected to the network, as shown in Figure 2-5. Figure 2-5 Power on the hub and make it ready 2.2 Installing the hub on your working surface You have to find a solid working surface to place the hub and make sure the equipment is not close to any high voltage power source or over-heated sources.
Figure 2-6 Lay hub on stable desktop 2.2.2 If you are installing more than one hub, please turn off the power of all hubs first. Then you can get another hub and place it above the previous one on the working surface, as shown in Figure 2-7. Finally, put the stacking kit inthe middle of two sides and click into the stacking hole in the plastic housing.Check if all hubs are tightly fastened by the stacking kits and proceed to next step.
2.2.3 Get the stackable cable and connect the cable to the stacking connectoron the hub, as shown inFigure 2-8. Connect "Down" SCSI port of the upperhub to "Up" SCSI port of the lower hub. Any loose connection of the stackablecable will cause problems with network performance and quality. Figure 2-8 Connect hubs by stacking cable 2.2.4 If you are trying to add more hubs in your office, you can follow the procedures from 2.2.2 to 2.2.3 repeatedly.
Figure 2-9 Stack multiple hubs together 2.3 Connecting to computers 2.3.1 Make sure the hub is ready for networking by checking if the PWR indicator displays. 2.3.2 See if the computer is working and find the RJ-45 connector of the adapter card in computers. You can connect UTP (Unshielded Twistered Pair) cables from normal ports of the hub to computers directly, as shown in Figure 2-10.
2.3.3 Arrange the route for cabling if no fixed cabling box is provided. Otherwise, It's right way to connect from your computer to the fixed cabling box on your working surface and plug the other end of the cable to the RJ45 connector on the hub, as shown in Figure 2-11. Figure 2-11 Connect UTP cable from hub to computers 2.3.4 After connecting to the hub, please check if the Link LEDs on the adapter card and the hub(named as LNK/ACT) are lit up, as shown in Figure 2-12.
ACT ALH-616ds Figure 2-12 Check the Link LEDs both on hub and adapter card 2.4 Does the hub work well? You can observe the LED status to see if the hub works fine. The meanings of LEDs are defined in section 2.4.1. 2.4.1 LED overview The locations of LED indicators are shown in Figure 2-13.
There are three groups of LED indicators in the front panel: • System status indicators: Indicate the overall system status of the hub. It includes system PWR, Fan Err., Master, Slave indicators, Collision of 10 and 100M, and Bridge function • Network status indicators: Indicate working status of each connection port, It includes port 100/10M, LNK/ACT • Network utilization indicators: Indicate the bandwidth utilization of 10 and 100Mbps. It includes 5, 15, 25, 35, 55+ scales indicators 2.4.
Note: It's normal either Master or Slave LED will display when hubs are stacking. Master Color Green Slave Green On/Off On Off On Off Indication Master Malfunction Disable Malfunction Note: The difference between Master hub and Slave hub will be explained in chapter 3. Collision: Indicate if a collision occurs in 10Mbps or 100Mbps domain.
4 6 8 Figure 2-15 Network Status Indicators 100/10: Indicates if the port is working at 100Mbps or 10Mbps. Color Green On/Off On Off Indication 100Mbps 10Mbps LNK/ACT: Indicates if the port is linked to another port or receiving data. Color Green On/Off On Blink Off Indication Link succeeds Receiving Link fails 2.4.4 Network utilization indicators There are 2 sets of LED indicators to indicate the real-time network utilization of 10Mbps and 100Mbps domain.
616ds Figure 2-16 Network utilization indicators ROW 10 M Speed 10Mbps 100 M 100Mbps Color Green Orange Green Orange Utilization 5, 15, 25 35, 55+ 5, 15, 25 35, 55+ The number of utilization is in percentage. For example, "15" of "100M" means 15% of 100Mbps, "55+" of "10M" means the utilization is more than 55% of 10Mbps.
3. Building Feasible Networks This chapter describes the network topology for hybrid 10Mbps and 100Mbps networks, cabling requirement for connections, the interoperability between hubs and switches and the function of bridge Up-Link port. Please turn over the page to see the different Topologies. 3.
Figure 3-2 Master and Slave hubs in stacking ALH-616ds. Note: 1. To concern the convenience of the cross-wiring connection between hubs, ALH-616ds provide 1 normal port (marked as "II) and 1 cross-over port (marked as "X"). These 2 ports are wired to each other by different wiring assignments. 2. The up-link port utilizes the first connection port with "X" sign.When you connect to another hub by this uplink port, you cannot simultaneously connect a PC to this port in which "II" sign is marked .
• By way of an uplink port with a Bridge function, the limitations on 100Mbps hub count(maximum 2) can be eliminated. The hub count is unlimited and cable length between hubs can reach 100 meters, as shown in Figure 34. Figure 3-4 Unlimited cascading of ALH-616ds. • All PCs with 10Mbps network adapter cards transmit data at 10Mbps and form the 10Mbps network domain, as shown in Figure 3-5. • PCs with 10/100Mbps network adapter cards will auto-negotiate and switch the network speed to 100Mbps.
• The data in 10Mbps or 100Mbps domain will be inter-connected by internal built-in switch in the Master hub consequently. • All hubs delivering data by the shared-bus always work on half-duplex mode;that is, data can be sent or received at one time in one direction. 3.2 Interconnection to Hubs and Switches 3.2.1 Connecting to Ethernet Hubs : The factors governing hub interconnection are: • The hubs are only connected by uplink port.
3.2.2 Connecting to Ethernet Switches : The factors governing hub and switch interconnection are: • The hubs are only connected to Ethernet switches by an uplink port. ALH-616ds will automatically work at 100Mbps network speed when connected to 10/100Mbps Ethernet switching ports and it will work at 10Mbps network speed if connected to 10Mbps switching ports. Figure 3-7 Connect to Ethernet Switches.
4. Troubleshooting 4.1 Symptoms and Suggestions Symptoms All LEDs are off Possible Reason The hub is not receiving DC power Link LED of a 1.The UTP cable is not connected securely connected port is off 2.The port is bad 3. If the other party is a PC, the Network interface card(NIC) could be not working 4. If the other party is a hub or LAN switch, the connected ports signal could be cross-over 100 LED is not lit when connected to a 100 NIC or 100 Hub(but Link LED is lit.) Suggestions 1.
4.
Appendix A.Specifications Network Interface 16-port 10/100 dual-speed auto-detection function • 10Mbps Ethernet IEEE 802.3 10Base-T • 100Mbps Ethernet IEEE 802.3u 100Base-TX One of the ports(Port NO.1)has two RJ-45 connector to provide either normal or uplink connection. Physical Dimension (From front View) Width 247 mm Depth 163 mm Height 45 mm Weight 1.
Product Limited Warranty Acer Netxus Incorporated (ANI) warrants its product to be free from defects in materials and workmanship, under normal use and service, for the following lengths of time from the date of purchase from ANI or its Authorized Resellers.
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