| Description | Serial ports expansion board |
| Channel | 1 |
| Isolation | Non-isolated |
| Port | RS485/RS232 |
| Protocol | RS485/232, baud rate: 4800-115200bps |
| Rated Voltage | 5VDC -15%/+20%, maximum of 3.2W. Provided internally in the main unit, no external input required |
| Wiring Strucutre | Non-detachable terminal block |
| Operating Temperature | -10ï―60°C |
| Storage Temperature | -20ï―70°C |
| Environmental Humidity | 5%ï―95%RH (non-condensing) |
| Enclosure Material | Engineering plastic |
| Installation | CPU frontal expasion board slot |
| Dimensions | 38mmx40mmx18mm |

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