### 模块接线图

SRL6004接线图

![](https://resource.helplook.net/docker_production/3648ne/article/6BHBQncQ/686cf60e467a0.png)

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### 模块端子说明

| **接线端子** | **说明** |
|---|---|
| R1+ | COM1串口RS422信号接收+ | COM1串口RS485信号B |
| T1+ | COM1串口RS422信号发送+ | -- |
| R1- | COM1串口RS422信号接收- | COM1串口RS485信号A |
| T1- | COM1串口RS422信号发送- | -- |
| R2+ | COM2串口RS422信号接收+ | COM2串口RS485信号B |
| T2+ | COM2串口RS422信号发送+ | -- |
| R2- | COM2串口RS422信号接收- | COM2串口RS485信号A |
| T2- | COM2串口RS422信号发送- | -- |
| R3+ | COM3串口RS422信号接收+ | COM3串口RS485信号B |
| T3+ | COM3串口RS422信号发送+ | -- |
| R3- | COM3串口RS422信号接收- | COM3串口RS485信号A |
| T3- | COM3串口RS422信号发送- | -- |
| R4+ | COM4串口RS422信号接收+ | COM4串口RS485信号B |
| T4+ | COM4串口RS422信号发送+ | -- |
| R4- | COM4串口RS422信号接收- | COM4串口RS485信号A |
| T4- | COM4串口RS422信号发送- | -- |
| R1 | COM1串口RS-232信号接收端 |
| T1 | COM1串口RS-232信号发送端 |
| R2 | COM2串口RS-232信号接收端 |
| T2 | COM2串口RS-232信号发送端 |
| R3 | COM3串口RS-232信号接收端 |
| T3 | COM3串口RS-232信号发送端 |
| R4 | COM4串口RS-232信号接收端 |
| T4 | COM4串口RS-232信号发送端 |