起订量:
| DIP Switch Settings | ||
| RS-422 | SW1 | SW2 |
| OFF | OFF | |
| 2-wire RS-485 | SW1 | SW2 |
| ON | ON | |
| 4-wire RS-485 | SW1 | SW2 |
| ON | OFF | |
| Terminator Enb/Dis | SW3 | SW3 |
| ON | OFF | |