3Com 3C16702A manual Straight-through Cable/Crossover Cable

Page 15

Refer to Figure 5 below to compare the wiring of a straight-through and a crossover cable.

Figure 5 Straight-through Cable/Crossover Cable

Normal

Pin

Pin

 

Uplink

Normal

Pin

Pin

 

Normal

port

 

port

port

 

port

Rx+

 

1

1

 

Tx+

Rx+

 

1

1

 

Rx+

 

2

2

 

 

2

2

 

Rx-

 

 

Tx-

Rx-

 

 

Rx-

 

3

3

 

 

3

3

 

Tx+

 

 

Rx+

Tx+

 

 

Tx+

 

4

4

 

 

4

4

 

 

 

 

 

 

 

 

 

 

 

5

5

 

 

 

 

5

5

 

 

 

 

 

 

 

 

 

 

Tx-

 

6

6

 

Rx-

Tx-

 

6

6

 

Tx-

 

 

 

 

 

7

7

 

 

7

7

 

 

 

 

 

 

 

 

 

 

 

8

8

 

 

 

 

8

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

Image 15
Contents OfficeConnect 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Introduction Environmental Statements Creating Your Network Page Introduction Ethernet Hub 16C-Front Creating Your NetworkEthernet Hub 16C-Rear Hub Connections Before You StartProduct Registration Workstation ConnectionsStacking the Units together Rubber FeetStacking Clip Securing the OfficeConnect Hub Positioning Your OfficeConnect HubConnecting OfficeConnect Hubs Together Connecting Workstations and Other Equipment to Your HubCorrect Hub Connections Using 10BASE-2 Coaxial Connecting Hubs Using 10BASE-2 CoaxialConnecting Hubs Using 10BASE-T Checking Hub ConnectionsSpot Checks Problem Solving Straight-through Cable/Crossover Cable Networking Terminology Dimensions and Operating Conditions Standards Dimensions and StandardsEnvironmental Statement about the Documentation Environmental StatementsEnd Of Life Statement Regulated Materials StatementRegulatory Notices Wall mounting screw hole guide 142mm 5.6in Page Part No. DUA 1670-2AAA04 Published April