KEYENCE N-48/42 - Manual (Page 6)

6
■ N-48
The following diagram shows the system configuration that uses the N-400 multi-drop unit as the
master unit and drives the BL series bar code readers in multi-drop link mode. For details of the multi-
drop link, see the N-400 User’s Manual.
• Only the BL-500/180 series enables the multi-drop link connection through the N-400 as shown
above.
• Turn ON the terminator of the equipment marked with an * in the above diagram (termination
resistor: 100
Ω ) .
N-400
N-48
RS-232C
RS-485
Host
Sensor for
trigger input
BL series
* *
• Maximum number of
connectable units: 31
• Maximum total extension
distance: 1.2 km
SYSTEM CONFIGURATION