![](/images/new-backgrounds/1300024/300024105x1.webp)
Result Codes:
| OK | n = 0, 1, 2 |
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| ERROR | Otherwise |
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&Jn | Auxiliary Relay option | |||||
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| Command |
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| &J0 |
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| The auxiliary relay is never closed. | ||
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| &J1 |
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| NOT SUPPORTED, responds ERROR. | ||
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Result Codes: |
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| OK | n = 0 |
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| ERROR | Otherwise |
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&Kn | Local Flow Control Selection | |||||
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| Command |
| Effect | |||
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| &K0 |
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| Disable flow control. | ||
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| &K1 |
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| Reserved. | ||
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| &K2 |
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| Reserved. | ||
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| &K3 |
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| Enable RTS/CTS flow control (default). | ||
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| &K4 |
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| Enable XON/XOFF flow control. | ||
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Result Codes: |
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| OK |
| n = 0, 3, 4 |
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| ERROR |
| Otherwise |
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&Mn | Asynchronous Communications Mode | |||||
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| Command |
| Effect | |||
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| &M0 |
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| Asynchronous mode (default). | ||
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| &M1 |
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| Reserved. | ||
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| &M2 |
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| Reserved. | ||
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| &M3 |
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| Reserved. | ||
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| &M4 |
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| Reserved. | ||
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