TC-52B轉換器通過從RS-232端口取電來實現RS-232到RS-422/485轉換,它將RS-232的TxD和RxD信號轉換為半雙工的2線RS-485差分信號或全雙工的4線RS-422/485信號
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| 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 | |