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GAXAX8080 8DI+8DO Distributed IO module Support Ethernet and RS485 dual control Supports multiple socket links
[Introduction]：The distributed IO expansion module adopts an scalable design in structure and needs to be used with our M31 series distributed IO host
| Symbol | name | Function/Description |
| DOI | Dll switch input | Dll switch input interface, used in conjunction with COMA |
| DI2 | DI2 switch input | DI2 switch input interface, used in conjunction with COMA |
| DI3 | DI3 switch input | DI3 switch input interface, used in conjunction with COMA |
| DI4 | DI4 switch input | DI4 switch input interface, used in conjunction with COMA |
| COMA | DI switch input common terminal | DI1-DI4 share the COMA common port |
| DI5 | DI5 switch input | DI5 switch input interface, used in conjunction with COMB |
| DI6 | DI6 switch input | DI6 switch input interface, used in conjunction with COMB |
| DI7 | DI7 switch input | DI7 switch input interface, used in conjunction with COMB |
| DI8 | DI8 switch input | DI8 switch input interface, used in conjunction with COMB |
| COMB | DI switch input common | DI5-DI8 share the COMB common terminal |
| DOI | DOI switch output | DOI switching output interface, used in coiijunction with COMC |
| DO2 | DO2 switch output | DO2 switching output interface, used in conjunction with COMC |
| DO3 | DO3 switch output | DO3 switching output interface, used in conjunction with COMC |
| DO4 | DO4 switch output | DO4 switching output interface, used in conjunction with COMC |
| DO5 | DO5 switch output | DO5 switching output interface, used in conjunction with COMC |
| DO6 | DO6 switch output | DO6 switching output interface, used in conjunction with COMC |
| DO7 | DO7 switch output | DO7 switching output interface, used in conjunction with COMC |
| DO8 | DO8 switch output | DO8 switching output interface, used in conjunction with COMC |
| COMC | COM side of DO | DO1-DO8 share COMC and use together |