Alfa Network Dual Speed Hub ADH16SB Скачать руководство пользователя страница 15

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Trouble-shooting

1. Power LED is not lit 

 Check if the power cord is properly connected to the power outlet and the  

hub. Make sure the power switch on the hub is turned ON. .

2. Link Status LED is not lit 

 Check the power switch of the network devices attached to the hub, make 

sure they are turned ON. 

 Check the network cable, make sure it is properly connected to the hub and 

the network device.

 

Check the network cable, make sure the cable complies with EIA/TIA 568 

   specification. Use straight-through Category 5 cables for 100Mbps 
   connection and  Category 3 or higher cables for 10Mbps connection.

   

Check the slide switch and make sure it s in normal position when you use 

the last port on the hub to connect to workstations or file servers.

3.  The last port s Link Status LED is not lit when it is uplinked to 
another hub

 Make sure the cable is connected to the "uplink" connector. 
 Check the network cable, make sure it is properly connected to both hubs.  

One end of the cable should be connected to uplink port while the other end 
of the cable should connected to a regular port. Do not connect the cable to 
both uplink ports.

 Check the network cable, make sure the cable complies with EIA/TIA 568 

    specification. Use Category 5 cables for 100Mbps connection.

   

 

Check the network cable, make sure the maximum length does not exceed 5 

    meters (15ft) in 100Mbps connection and 100 meters (300ft) in 10Mbps 
    connection.

4. Collision LED flashes constantly

 Remove all the network cables, connect the cables back one by one to 

isolate the source of the collision.

 Check the network cable, inferior cable quality will result in excessive 

collision and error packets.

[!] Contact your dealer if problem persist.

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Содержание Dual Speed Hub ADH16SB

Страница 1: ...Quick Installation Guide for 16 24 32 ports Dual Speed Hub ADH16SB ADH24SB ADH32SB ...

Страница 2: ...ccur in aparticular installation If you suspect this equipment is causing interference turn your hub on and off while your radio or TV is showing interference to determine the source ofthe interference You can try to correct the interference by one or more of the following measures 1 Reorient the receiving radio or TV antenna where this may be done safely 2 To the extent possible relocate the radi...

Страница 3: ...Chapter 1 Introduction 1 Chapter 2 Features Specifications 3 Chapter 3 Package Contents 5 Chapter 4 Physical Description 6 Chapter 5 Installation 9 Chapter 6 Trouble shooting 12 Contents ...

Страница 4: ...her devices attached to the hub running at 100Mbps Therefore dual speed hub can be 10Base T hub when all the connecting nodes are running at 10Mbps as illustrated in Figure 1 1 or can be 100Base TX hub when all the connecting nodes are running at 100Mbps as illustrated in Figure 1 2 These stackable dual speed hubs are the ideal hubs for both 10Base T and 100Base TX networks 100Mbps 10Mbps 1 2 3 4 ...

Страница 5: ...to connect to another hub with regular straight through Category 5 cable These Dual Speed Hubs provide the stackable feature They can stack together up to 6 hubs to form a logically Big dual speed Hub These Dual Speed hubs can be set up as stand alone units or it can be mounted on a standard 19 rack rack mounting kits are included with the unit Figure 1 3 Internal switch links 10Mbps and 100Mbps s...

Страница 6: ...k selection for the last port to connect with regular straight through cable to another hub Network Utilization LEDs provides simple reading on hub s traffic status Built in internal switching function automatically switches data traffic between devicesrunning at differentspeed establishes communications between ports running at 10Mbps and 100Mbps Support stackable function for stacking up to 6 hu...

Страница 7: ...Ds Power Internal Switch Segment LEDs Collision Utilization Port LEDs Speed Status 10 or100 Link Activity Status Internal Switch 1K MAC Address Table 256KB Buffer Memory Dimensions 17 3x 7 9 x1 75 in 440 x201 x 45mm Weight 5 1 lb 2 3kg Power 100 240VAC 50 60Hz internalfull range switching power 0 0 Operating Temperature 32 131 F 0 55 C Operating Humidity 10 95 Noncondensing Emission FCCClass B CE ...

Страница 8: ...20 17 18 19 20 9 10 11 12 21 22 23 24 21 22 23 24 Uplink LNK ACT 100M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 LNK ACT 100M 10M COL 50 30 10 5 1 UTIL 50 30 10 5 1 UTIL 100M COL Power Switch 32 Port10 100Mbps Dual Speed Stackable Ethernet Hub 5 6 7 8 21 22 23 24 21 22 23 24 9 10 11 12 25 26 27 28 25 26 27 28 Uplink 1 2 3 4 1 2 3 4 17 18 19 20 13 14 15 1...

Страница 9: ... 13 14 15 16 10M COL 50 30 10 5 1 UTIL 50 30 10 5 1 UTIL 100M COL 16 Port10 100Mbps Dual Speed Stackable Ethernet Hub Power Switch LNK ACT 100M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 10M COL 50 30 10 5 1 UTIL 50 30 10 5 1 UTIL 100M COL 16 Port10 100Mbps Dual Speed Stackable Ethernet Hub 1 2 3 4 9 10 11 12 5 6 7 8 13 14 15 16 Uplink IN OUT IN OUT 4 4 Physical Description Figure 4 1 Panel descriptio...

Страница 10: ...link Power Switch LNK ACT 100M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 LNK ACT 100M 32 Port 10 100Mbps 10M COL 50 30 10 5 1 UTIL 50 30 10 5 1 UTIL 100M COL 1 2 3 4 1 2 3 4 17 18 19 20 13 14 15 16 29 30 31 32 29 30 31 32 IN OUT IN OUT Figure 4 1 Panel description cont 7 LED Panel RJ45 connectors Uplink Port 10M Col and Util LED 100M Col and Util LED Po...

Страница 11: ...zation Green Green Green Yellow Green Lit Off Lit Off Lit Off Flash Lit Off Lit Power is supplied One for the whole Hub No power A valid link is established One for each port Data packets received No link is established This port run at 100Mbps One for each port Not connected or run at 10M Collision detected in this segment One for 10Mbps segment and one for 100Mbps segment No Collision Indicate n...

Страница 12: ... be lit 3 Uplink toAnother Hub Use the uplinkport the lastport to connectto another hubas illustrated in Figure 5 2 Connecting cable must comply with EIA TIA 568 specifications and Category 5 100Mbps standards to connect the hubs The Uplink port of the Dual Speed hub supports Auto Sensing function which will automatically sense the speed of the connected hub and operates at either 100Mbps or 10Mbp...

Страница 13: ...24 Port10 100Mbps Dual Speed Stackable Ethernet Hub 1 2 3 4 1 2 3 4 13 14 15 16 5 6 7 8 17 18 19 20 17 18 19 20 9 10 11 12 21 22 23 24 21 22 23 24 Uplink LNK ACT 100M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 LNK ACT 100M 10M COL 50 30 10 5 1 UTIL 50 30 10 5 1 UTIL 100M COL Power Switch 24 Port10 100Mbps Dual Speed Stackable Ethernet Hub 1 2 3 4 1 2 3 4 13 14 15 16 5 6 7 8 17 ...

Страница 14: ...nnect the powercord to thepower socket onthe rear panelof the unit Connect the powercord to thepower outlet andturn on powerswitch The green Power LEDon the frontpanel should belit Figure 5 4 Connect the power cable IN OUT IN OUT ...

Страница 15: ...3 The last port s Link Status LED is not lit when it is uplinked to another hub Make sure the cable is connected to the uplink connector Check the network cable make sure it is properly connected to both hubs One end of the cable should be connected to uplink port while the other end of the cable should connected to a regular port Do not connect the cable to both uplink ports Check the network cab...

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