Black Box RS-232/422/485, RS422/485 manual Switch Port Description RS-485, Setting

CHAPTER 4: Configuration

Table 4-8. DIP-switch SW1 and SW3 settings.

Switch	Switch		Port	Description			RS-485	RS-422
Setting	Number
485	SW1-1	3	485	Mode (4-wire)		ON	OFF
NE	SW1-2	3	485	Mode, No Echo (2-wire)	ON		OFF
485	SW1-3	4	485	Mode (4-wire)		ON	OFF
NE	SW1-4	4	485	Mode, No Echo (2-wire)	ON		OFF
485	SW3-1	1	485	Mode (4-wire)		ON	OFF
NE	SW3-2	1	485	Mode, No Echo (2-wire)	ON		OFF
485	SW3-3	2	485	Mode (4-wire)		ON	OFF
NE	SW3-4	2	485	Mode, No Echo (2-wire)	ON		OFF

NE = No Echo. In a two-wire setup, the receiver will echo back all transmitted data.

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