引脚排列
| Pin脚 | 定义 | 备注 | ||
| 1 | 2 | USBUS | USBUS | S-Bus电源USBUS由耦合器供电，并且由EtherCAT耦合器的电源Us供电 |
| 3 | 4 | GND | GND | |
| 5 | 6 | RX0+ | TX1+ | |
| 7 | 8 | RX0- | TX1- | |
| 9 | 10 | GND | GND | |
| 11 | 12 | TX0+ | RX1+ | |
| 13 | 14 | TX0- | RX1- | |
| 15 | 16 | GND | GND | |
| 17 | 18 | AGND | AI 1 | 信号 |
| 19 | 20 | AGND | AI 2 | |
| 21 | 22 | AGND | AI 3 | |
| 23 | 24 | AGND | AI 4 | |
| 25 | 26 | AGND | AI 5 | |
| 27 | 28 | AGND | AI 6 | |
| 29 | 30 | AGND | AI 7 | |
| 31 | 32 | AGND | AI 8 | |
| 33 | 34 | NC | NC | Up该设备无上触点，电源仅通过USBUS供电 |
| 35 | 36 | NC | NC | |
| 37 | 38 | NC | NC | |
| 39 | 40 | SGND | SGND | |
引脚定义
| 定义 | 说明 |
| USBUS | S-Bus电源3.3V |
| GND | S-Bus接地信号（注意：切勿与0V Up连接！） |
| RXn+ | S-Bus接收信号正极 |
| RXn- | S-Bus接收信号负极 |
| TXn+ | S-Bus发送信号正极 |
| TXn- | S-Bus发送信号负极 |
| AI 1~AI 8 | 模拟量输入1...8 |
| AGND | 模拟量输入接地 |
| NC | 不连接 |
| SGND | 屏蔽层接地 |