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 Cables for Gateway 20 through 21                                                                                                           PAGE 5   

© JBM Electronics Co. 

1-800-489-7781 

www.jbmelectronics.com

 

 

RJ-45 Straight 

 
This table lists the Ethernet pins used in the Ethernet Port ETH0. For a straight-wired 
connection the pins should be connected from one connector to the other without 
transpositions or other wiring changes. 
 

 
 

 
 
 
 
 

 
 
Units Supported  
 

• 

C20 

• 

C21 

 

JBM Electronics Part Number: 

N/A 

 

RJ-45 Crossed

 

 
This table lists the required Crossed-Wired Ethernet wiring required to provide cable 
connection to the Gateway and a local PC. The pins should be connected from one 
connector to the other using the transpositions indicated. 
 
 
 
 
 
 
 
 

 
 
Units Supported  
 

• 

C20 

• 

C21 

 

JBM Electronics Part Number: 

C/CAT5-CROSS 

 

 

TABLE C   

STRAIGHT 10/100BASET 

PIN 

DESCRIPTION 

TD+ 

TD- 

RD+ 

RD- 

Used for HUB or Switch 

TABLE D   

CROSSED 10/00BASET 

CONNECTOR A CONNECTOR B 

 

 

-

 

 

-

 

 

-

 

-

 

 

-

 

 

-

 

 

-

 

Used for direct PC connection 

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