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Crossover Cables 

When making an uplink connection between one hub and 
another (or between a hub and a switch or bridge) using 

X

-type 

jacks at both ends, you must use a crossover cable. In a 
crossover cable, two pairs of wires are switched at one end. 
Carry out the following steps to create a crossover twisted-pair 
cable: 

1. 

Leave one end of the cable as -is, with the wiring on the 
RJ-45 connector unchanged. The wiring needs to be 
modified at one end only. 

2. 

At the other end of the cable, connect wires 1 and 2 to 
contacts 3 and 6, respectively. Likewise, connect wires 
3 and 6 to contacts 1 and 2. Refer to the following 
diagram: 

Summary of Contents for EHU-0507T

Page 1: ...LevelOne EHU 0507T EHU 0507TB EHU 0807T EHU 0907TB 5 8 9 Port PalmCon 10M HUB User s Guide...

Page 2: ......

Page 3: ...s uses and can radiate radio frequency energy and if not installed and used in accordance with this user s guide may cause harmful interference to radio communications Operation of this equipment in a...

Page 4: ...F PALM SIZE HUBS 3 LED INDICATORS 4 REAR PANEL INDICATORS 4 Twisted pair Jacks 4 Uplink Jack 5 Power Jack 5 INSTALLATION 6 INSTALLING THE HUB 6 CONNECTING THE POWER ADAPTER 10 CABLES AND CONNECTORS 10...

Page 5: ...he hub features LINK RX LEDs to show the connection and receive status of each twisted pair port PWR and COL indicators show the status of the hub as whole Product Features Compliance to IEEE 802 3 10...

Page 6: ...f PalmCon Hubs EHU 0507T 5 Port 10MbpsPalmCon Hub PWR Link Rx 1 2 3 4 5 EHU 0507T EHU 0507TB 5 Port 10MbpsPalmCon Hub PWR Link Rx BNC 1 2 3 4 5 EHU 0507TB Link Rx PWR 1 2 3 4 5 6 7 8 EHU 0807T PWR Lin...

Page 7: ...3 The Rear Panel of PalmCon Hubs EHU 0507T EHU 0507TB EHU 0807T EHU 0907TB...

Page 8: ...on to which the hub is connected is powered off or if there is a problem with the link the LED will remain off And the indicator blinking green when the data will be received to all other connected po...

Page 9: ...jack which means you can connect the hub or a hub stack to a device with an MDI X port using an ordinary straight through cable making a crossover cable unnecessary Port1 and the Uplink port is reall...

Page 10: ...s Install the hub in a site free from strong electromagnetic field generators such as motors vibration dust and direct exposure to sunlight Leave at least 10 cm of space at the front and rear of the h...

Page 11: ...7 2...

Page 12: ...8 3...

Page 13: ...9...

Page 14: ...ir data cable with 0 4 to 0 6 mm 22 to 26 AWG wires in two or four twisted pairs only two pairs that is four wires are used for 10BASE T Maximum segment length 100 meters Connectors RJ 45 Straight Twi...

Page 15: ...airs of wires are switched at one end Carry out the following steps to create a crossover twisted pair cable 1 Leave one end of the cable as is with the wiring on the RJ 45 connector unchanged The wir...

Page 16: ...12...

Page 17: ......

Page 18: ...e Ethernet 10Mbps Number of Ports 4 x STP 1 x BNC 5 x STP 8 x STP 8 x STP 1 x BNC Network Media Category 3 or better UTP cable maximum length 100 meters Environmental and Physical Power Adapter 5 8 9...

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