
Connector Pin Assignments
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 | 1 | 3 | 5 | 7 | 
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| Pin | Signal | Pin | Signal | 
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| 1 | Transmit + | 5 | Unused | 
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| 2 | Transmit - | 6 | Receive - | 
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| 3 | Receive + | 7 | Unused | 
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| 4 | Unused | 8 | Unused | 
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Table 
Universal Serial Bus
| Pin | Signal | Pin | Signal | 
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| 1 | +5 VDC | 3 | Data + | 
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| 2 | Data - | 4 | Ground | 
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| Maintenance and Service Guide |