KEYENCE N-400 - Manual (Page 14)

Chapter 1 Overview of The N-400
1
7 Terminator switch
1 READER port
3 I/O terminals
4 RS-485 terminals
5 Power supply terminals
2 POWER LED
6 Communication
status indicator
LEDs
ON
OFF
POWER SD RD
READER
No. Name Function
1 READER port Connect the BL series to this port.
2 POWER LED Lit when power is ON.
3 I/O terminals Includes the trigger input terminal and OK/NG output
terminals.
4 RS-485 terminals Used for multi-drop link mode.
5 Connect a 24 VDC power supply to these terminals.
6 Allows you to monitor the communication status of the
READER port.
SD: Lit when the BL series is sending data.
RD: Lit when the BL series is receiving a command.
7 Terminator switch Turns the terminator ON/OFF.
Power supply terminals
Communication status
indicator LEDs
N-48
Note: BL-U1 is not available in the Europe area.
6