
| Collection plate | Test tube rack |
| NO. | Interface description | NO. | Interface description |
| 1 | Power interface | 5 | Trigger interface (level/short circuit/relay) |
| 2 | Network interface | ||
| 3 | RJ12 interface | 6 | Analog input interface |
| 4 | COM serial port (232/485) | 7 | Solenoid valve data line interface |
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