KEYENCE N-400 - Manual (Page 30)

Chapter 2 Installation Procedure
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2.4.3 Setting BL-U1 DIP switches
Switch the interface setting to “RS-485 multi-drop” using the BL-U1 DIP switches.
Switch the RS-485 terminator according to p. 25.
* The figure on the left shows the default settings.
OFF
ON
1 2 3 4 5 6
DIP Switch No. 1 2 3 4 5 6
Interface selection RS-232C ON OFF OFF
RS-422A OFF ON OFF
RS-485 multidrop OFF OFF ON
RS-422A terminator OFF OFF
(Termination resistance: 100 Ω ) ON ON
RS-485 terminator OFF OFF
(Termination resistance: 100 Ω ) ON ON
Selection of READER port ON or OFF according
CS control method to the RS-232C port OFF
CS signal status.
Normally ON ON