RS-232 Auxiliary Port
The
The | Auxiliary port is | reserved | for 3Com | service engineers. | No device |
should | be connected | to it | during | normal hub | operation. |
Table | Auxiliary |
| Port | Pin | Assignments | |||
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Pin | Number | Signal | Name |
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1 |
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| No | connection |
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2 |
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| Receive | Data | (RX) | |||
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3 |
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| Transmit | Data | (TX) | |||
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4 |
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| No | connection |
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5 |
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| Signal | Ground | (GND) | |||
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6 |
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| No | connection |
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7 |
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| Request | to | Send (RTS) | |||
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8 |
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| Clear | to | Send | (CTS) | ||
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9 |
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| No | connection |
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