267
Remote I/O Modules
Section 5-3
2.
NC Terminal:
• The NC terminal is used internally. Therefore, do not connect anything
to the NC terminal.
Inner-layer Pattern for Noise Protection
When adding a noise protection circuit to the input or output section, create
inner-layer patterns as follows:
• There must be at least 2.54 mm between the adjacent inner-layer pat-
terns of the external and internal circuits.
• The inner-layer pattern of the external circuit must be kept at least 10 mm
from each terminal of the SRT
@
-ID16P or SRT
@
-OD16P,
No parts must be mounted on the soldered surfaces around the SRT
@
-ID16P
or SRT
@
-OD16P.
Example: SRT1-ID16P
i“à ”‰ñ˜H j
BD L
BD H
A
A
A
A
(External circuit)
(Internal circuit)
10 mm
min.
Terminal
block
A: 2.54 mm min.
(External circuit)
(Internal circuit)
(External circuit)
10 mm
min.
DC
IN8
DC
IN15
BD L
BS–
8
BD H
BS+ 0
15
G
5V OUT
COMM
ERR
HOLD
7
G
NC
ADR1
ADR2
ADR3
DC
IN0
DC
IN7
SRT1-ID16P
