Host Communication
All of these connectors are shown below:
Reference  | Description  | Pin  | Signal Name/Function  | 
Designator | Number  | ||
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J12  | 1  | J13 pin 2  | |
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  | 2  | J15 pin 1  | 
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  | 3  | J13 pin 4  | 
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  | 4  | J15 pin 3  | 
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  | 5  | J13 pin 6  | 
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  | 6  | J15 pin 5  | 
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  | 7  | J13 pin 8  | 
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  | 8  | J15 pin 7  | 
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  | 9  | J13 pin 10  | 
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  | 10  | J15 pin 9  | 
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  | 11  | J13 pin 12  | 
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  | 12  | J15 pin 11  | 
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  | 13  | J13 pin 14  | 
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  | 14  | J15 pin 13  | 
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  | 15  | J13 pin 16  | 
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  | 16  | J15 pin 15  | 
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  | 17  | J13 pin 18  | 
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  | 18  | J15 pin 17  | 
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  | 19  | J13 pin 20  | 
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  | 20  | J15 pin 19  | 
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