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Port and Cable Assignments

9

Verify that all system components have been properly installed. If one or more 
components appear to be malfunctioning (e.g., the power cord or network cabling), 
test them in an alternate environment where you are sure that all the other 
components are functioning properly.

RJ-45 station ports (all port) can be attached 
to any devices which use a standard network interface (e.g., a workstation, server, 
bridge or router). RJ-45 daisy-chain ports (all port) can be cascaded to a station port 
on similar networking devices (e.g., another switch or hub). Use unshielded 
twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 
100-ohm Category 3, 4 or 5 cable for 10 Mbps connections or 100-ohm Category 5 
cable for 100 Mbps connections. Also be sure that the length of any twisted-pair 
connection does not exceed 100 meters (328 feet).

Schematics for both straight and crossover twisted-pair cable are shown below

1

Input Receive Data +

Output Transmit 
Data +

2

Input Receive Data -

Output Transmit 
Data -

3

Output Transmit 
Data +

Input Receive Data +

6

Output Transmit 
Data -

Input Receive Data -

4,5,7,
8

Not Used

Not Used

(Switch) 

(Adapter)

(Switch) 

(Hub/Switch) 

1   IRD+ 

1 OTD+ 1   IRD+ 

1  IRD+

2   IRD- 

2  OTD- 2   IRD- 

2  IRD-

3   OTD+

3   IRD+ 3   OTD+ 

3 OTD+

6   OTD- 

6   IRD-

6   OTD- 

6  OTD-