Table of Contents
Advertisement
2-9. Setting the On-Board Switches and Description of LEDs
n
The number shown in the parentheses ( ) indicates the address on the circuit board.
CPU-420 board (BKS-R3219A/BKS-R1617A)
A
1
2
< LED >
D71 (D-2) : + + + + + 12 V
+12 V power supply status indication
Lights when the +12 V power is supplied normally.
D74 (C-2) : + + + + + 5 V
+5 V power supply status indication
Lights when the +5 V power is supplied normally.
2-6
B
C
S1
S2
D74
<Switch >
S1 (B-1) : RESET
The reset switch that is used to reset operations of the
BKS-R3219A/BKS-R1617A.
S2 (B-1) : for DEBUG
2-pin DIP-switch
Factory setting
ON
( indicates the switch lever position.)
BIT1 : Use the ON setting (factory default setting).
BIT2 : Use the OFF setting (factory default setting).
D
D71
Side A
1 2
BKS-R3219A/R1617A I&SSM
Advertisement
Table of Contents
