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8-Port 

A c e r H u b

Dual-Speed Ethernet Hub

ALH-608ds

User's Manual

608-UM  1/8/99 2:34 PM  

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Summary of Contents for ALH-608ds

Page 1: ...8 Port AcerHub Dual Speed Ethernet Hub ALH 608ds User s Manual 608 UM 1 8 99 2 34 PM 1 ...

Page 2: ...s any warranties merchantability or fitness for any particular purpose Any software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer and not this company its distributor or its dealer assumes the entire cost of all necessary servicing repair and any incidental or consequential damages resulting from any defect in the software...

Page 3: ...t in installation unless proper ventilation is provided 7 This product should be operated from the type of power indicated on the marking label If you are not sure of the type of power available consult your dealer or local power company 8 Do not allow anything to rest on the power cord Do not locate this product where persons will walk on the cord 9 If an extension cord is used with this product ...

Page 4: ...nd the items in the package Chapter 2 Make Your Hub Ready This chapter describes the installation procedures to quickly make your hub ready for networking and the easiest way to find out if the hub is working well Chapter 3 Building Feasible Networks This chapter describes the network topology for hybrid 10Mbps and 100Mbps networks cabling requirements for connections and the interoperability betw...

Page 5: ...rking surface 2 4 2 3 Connecting to computers 2 7 2 4 Does the hub work well 2 9 2 4 1 LED overview 2 9 2 4 2 System status indicators 2 10 2 4 3 Network status indicators 2 11 2 4 4 Network utilization indicators 2 12 Chapter 3 Building Feasible Networks 3 1 Network topology for AcerHub ALH 608ds 3 1 3 2 Interconnection to hubs and switches 3 4 Chapter 4 Troubleshooting Appendix A Specifications ...

Page 6: ...speed Hub and it s accessories 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 vi 608 UM 1 8 99 2 34 PM 4 ...

Page 7: ... eliminates the repeater count limitation in IEEE 802 3u specifications It will be easy to construct your own LAN with ALH 608ds by this explicit expanding capability of data transmitting distances and user accounts Installation of AcerHub ALH 608ds is relatively simple and all you have to do is plug the cables from the adapter cards to the ports check the LEDs and you can start networking 1 2 Pro...

Page 8: ...nfiguration 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 before using the hub The accessories of this product include ALH 608ds dual speed hub 1 piece External switching power adapter 1 piece Power cord 1 piece Stacking cable SCSI II 1 piece Stacking kit 1 pair User s manual 1 piece Figure 1 1 Product ...

Page 9: ...lease follow the installing procedures to make your network ready 2 1 Connecting to the external power supply Carefully unpack the AcerHub ALH 608ds and it s accessories For the first time that you use this hub please make sure there is nothing missing in the package The procedures for connecting to the power outlet are 2 1 1 Take out the hub and the power adapter from the packing box as shown in ...

Page 10: ...desktop and remove the packing box of the power adapter as shown in Figure 2 2 2 2 User s Manual Figure 2 1 Get the hub and power adapter Figure 2 2 Put the hub on desktop and find the proper power adapter 608 UM 1 8 99 2 34 PM 8 ...

Page 11: ...nd plug the cord into the power jack of the hub as shown in Figure 2 3 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 3 User s Manual Figure 2 3 Connect to the power adapter Figure 2 4 Connect to the power cord to wall outlet 608 UM 1 8 99 2 34 PM 9 ...

Page 12: ...ve 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 Also keep away from electronic equipment sensitive to electronic interference The brief procedures of installing your hub should be 2 2 1 Put the hub on a stable working surface as shown in Figure 2 6 2 4 User s Manual Figure 2 5 Power on the hub and ...

Page 13: ...ing surface as shown in Figure 2 7 Finally put the stacking kit in the 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 5 User s Manual Figure 2 7 Unplug the power and stack two hubs together Figure 2 6 Lay hub on stable desktop 608 UM 1 8 99 2 34 PM 11 ...

Page 14: ...rformance and quality 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 Be sure not to stack hubs more than 5 include 5 sets in one stack 2 2 5 Plug the power cord into the outlet on wall and check if the power LED lights up The hub is ready for network connection if the power LED lights up as shown in Figure 2 9 2 6 User s Manual ...

Page 15: ...f 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 7 User s Manual Figure 2 9 Stack multiple hubs together Figure 2 10 Connect to computers 608 UM 1 8 99 2 34 PM 13 ...

Page 16: ...o the RJ 45 connector on the hub as shown in Figure 2 11 2 3 4 After connecting to the hub please check if the Link LEDs on the adapter card and the hub named as LNK Rx are lit up as shown in Figure 2 12 If the LED is not lit up there must be something wrong and please reference to chapter 4 for quick trouble shooting 2 8 User s Manual Figure 2 11 Connect UTP cable from hub to computers 608 UM 1 8...

Page 17: ...ub 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 2 9 User s Manual Figure 2 12 Check the Link LEDs both on hub and adapter card Figure 2 13 LED overview 608 UM 1 8 99 2 34 PM 15 ...

Page 18: ...of each connection port It includes port 100 10M LNK Rx and Partition Network utilization indicators Indicate the bandwidth utilization of 10 and 100Mbps It includes 5 15 25 35 55 scales indicators 2 4 2 System status indicators PWR Indicates if the system is provided with power FAN Err Indicates if the cooling FAN is dead Master Slave Indicates if the system is stacked to be the Master or Slave h...

Page 19: ...r 3 Collision Indicate if a collision occurs in 10Mbps or 100Mbps domain Bridge Indicates if the bridging function is enabled Note The slave hub will provide a Bridge Uplink Port see chapter 3 for details 2 4 3 Network Status Indicators There are 3 LED indicators to indicate the network status of each connection port 2 11 User s Manual 608 UM 1 8 99 2 34 PM 17 ...

Page 20: ...tion Indicates if the port is partitioned or not A port is partitioned if it experiences consecutive collisions 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 2 12 User s Manual Figure 2 15 Network Status Indicators 608 UM 1 8 99 2 34 PM 18 ...

Page 21: ...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 2 13 User s Manual Figure 2 16 Network utilization indicators 608 UM 1 8 99 2 34 PM 19 ...

Page 22: ...and 100Mbps network domains with one built in switch to inter connect the data in domains as shown in Figure 3 1 Figure 3 1 Separate domains in ALH 608ds The hub will be divided into Master and Slave hubs when they are stacked together The upper most hub is the Master hub and other hubs are Slave hubs The Master hub continues to use the built in switch but the switch in the Slave hubs will be disa...

Page 23: ...e 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 The reason being that if a PC is connected to it the physical signal in the cable will be corrupted The built in switches in slave hubs will be disabled automatically to avoid data looping from multiple inter connections of hubs as s...

Page 24: ...ited cascading of ALH 608ds 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 They transmit data at 100Mbps and form the 100Mbps network domain as shown in Figure 3 5 Figure 3 5 Network domains and bridged uplink 3 3 User s ...

Page 25: ... Ethernet Hubs The factors governing hub interconnection are The hubs are only connected by uplink port ALH 608ds will automatically transmit at 10Mbps network speed when connecting to 10Mbps Ethernet hubs and 100Mbps network speed if connected to 100Mbps hubs If multiple ALH 608ds are stacked together users can connect to hubs by the uplink port in slave hubs Therefore other hubs can perform anot...

Page 26: ...atically 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 No matter if the ALH 608ds hubs are stacked together or not the user always can connect to Ethernet switches by the uplink port 3 5 User s Manual 608 UM 1 8 99 2 34 PM 24 ...

Page 27: ...nection 2 Try to connect another port 3 Check if the network interface card NIC is installed properly 4 If the other party is a hub or LAN switch the connected ports signal could be cross over 4 Make sure ALH 608ds normal port is connected to the other hub s or switch s uplink port or called cross over port and ALH 608ds uplink port is connected the other s normal port 5 The UTP cable is broken or...

Page 28: ...e LEDs State and Result Action If you have any problem in building your network with AcerHub ALH 608ds please contact your Vendor or visit our website Http www acernetxus com tw 4 2 User s Manual 608 UM 1 8 99 2 34 PM 26 ...

Page 29: ...F Operating Humidity 20 to 80 non condensing Network Cable Specification UTP Category 5 LAN cable of EIA TIA 568 and EIA TIA TSB 36 specifications for 100Mbps Stacking Specification Maximum stacking of 5 sets as a single hub count by SCSI Cables SCSI II 25 pin connection cable of 100 mm long External Switching Power Adapter Operating AC power voltage 100 240V AC Auto switching Output DC power volt...

Page 30: ...inety days warranty or the remainder of the initial warranty period whichever is longer ANI shall not be responsible for any software firmware information or memory data of customer contained in stored on or integrated with any products returned to ANI pursuant to any warranty Before you obtain warranty service you must request an RMA Return Materials Authorization number by calling faxing or writ...

Page 31: ... Acer Japan Corporation Tel 81 4 8290 1819 Fax 81 4 8290 1820 Acer Computer B V Tel 31 73 645 9645 Fax 31 73 645 9599 Acer UK Limited Tel 44 1628 533422 Fax 44 1628 524071 http www aceruk co uk Acer Computer France S A R L Tel 33 1 4817 4040 Fax 33 1 4817 4089 Acer Computer GmbH Tel 49 4102 488 0 Fax 49 4102 488 101 Dealers Information Hotline Germany 0180 3234781 End users Information Hotline Ger...

Page 32: ...100 Recyclable Paper Acer Netxus Inc A Communications Company of Acer 608 UM 1 8 99 2 34 PM 30 ...

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