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1 网线RJ45
RJ45有两种绕线方式，T-568A和T-568B。
注意：绝大多数设备用的都是T-568B！！！请参照T-568B的线序！！！
1.1 Wiring
1.2 Pinout
2 RS232
2.1 DB9 Pinout & Wiring
| Pin | SIG. | Signal Name | DTE (PC) |
|---|---|---|---|
| 1 | DCD | Data Carrier Detect | in |
| 2 | RXD | Receive Data | in |
| 3 | TXD | Transmit Data | out |
| 4 | DTR | Data Terminal Ready | out |
| 5 | GND | Signal Ground | - |
| 6 | DSR | Data Set Ready | in |
| 7 | RTS | Request to Send | out |
| 8 | CTS | Clear to Send | in |
| 9 | RI | Ring Indicator | in |