
| NPort 5600 Series User’s Manual | Well Known Port Numbers | 
| RJ45  | 
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| RJ45 Port RJ45 Connector | Male DB9 Female DB9 | 
NPort 5610 NPort 5650
| 8 pins | 
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 | Cable Wiring | 9 pins | ||||||
| DSR | 1 | 
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 | 6 | 
 | DTR | ||
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| RTS | 2 | 
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 | 7 | 
 | CTS | ||
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| GND | 3 | 
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 | 5 | 
 | GND | |
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| TxD | 4 | 
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 | 3 | 
 | RxD | ||
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| RxD | 5 | 
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 | 2 | 
 | TxD | ||
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| DCD | 6 | 
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 | 1 | 
 | DCD | ||
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| CTS | 7 | 
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 | 8 | 
 | RTS | ||
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| DTR | 8 | 
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 | 4 | 
 | DSR | ||
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| RJ45  | 
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| RJ45 Port | RJ45 Connector | Female DB25 | Male | ||||||||
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 | DB25 | 
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NPort 5610 NPort 5650
| 8 pins | 
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 | Cable Wiring | 
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 | 25 pins | 
| DSR | 1 | 
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 | 20 | DTR | |||
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| RTS | 2 | 
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 | 5 | 
 | CTS | ||
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| GND | 3 | 
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 | 7 | 
 | GND | |
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| TxD | 4 | 
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 | 3 | 
 | RxD | ||
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| RxD | 5 | 
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 | 2 | 
 | TxD | ||
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| DCD | 6 | 
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 | 8 | 
 | DCD | ||
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| CTS | 7 | 
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 | 4 | 
 | RTS | ||
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| DTR | 8 | 
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 | 6 | 
 | DSR | ||
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| RJ45  | 
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| RJ45 Port | RJ45 Connector | Male DB25 | Female | ||||||||
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 | DB25 | 
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NPort 5610
NPort 5650
| 8 pins | Cable Wiring | 
| DSR | 1 | 
| RTS | 2 | 
| GND | 3 | 
| TxD | 4 | 
| RxD | 5 | 
| DCD | 6 | 
| CTS | 7 | 
| DTR | 8 | 
Device
25 pins
6DTR  4 CTS
 4 CTS
7GND  2 RxD
 2 RxD
3TxD
8DCD
5RTS
 20 DSR
 20 DSR
