| RS232 IC | MAX3232 |
| RS232 Interface | 1x DB9 |
| RS232 Rate | Up to 120kbps |
| RS485 IC | MAX3485 |
| RS485 Interface | 2x 3-pin Terminal Strip |
| RS485 Rate | Up to 500kbps |
| Industrial Grade design, Interference and Lightning proof | |
| Support Multi-machine communication, max 128 devices allowed in bus | |
| RS422 IC | MAX3490 |
| RS422 Interface | 2x 5-pin Terminal Strip |
| RS422 Rate | Up to 500kbps |
| Industrial Grade design, Interference and Lightning proof | |
| Support Multi-machine communication, max 128 devices allowed in bus | |
| Module Dimension | 81 x 51 mm |
| Module Interface | 40-pin 0.1 inch (2.54mm) pitch socket |