2 – General Description Serial Port
S
Table 2-4. RJ-45 to DB-9 Adapter Pin Identification (Continued)
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Pin Number | Pin Definition | Pin Number | Pin Definition |
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5 | DCD |
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3 | RxD | 3 | Transmit data (TxD) |
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4 | GND | 5 | Signal ground (GND) |
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6 | TxD | 2 | Receive data (RxD) |
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7 | DTR | 1 | Data carrier detect (DCD) |
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| 6 | Data set ready (DSR) |
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8 | RTS | 8 | Clear to send (CTS) |
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| 9 | Ring indicator (RI) |
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