2: M
ODULE
S
PECIFICATIONS
FC5A MicroSmart User’s Manual FC9Y-B1268
2-89
Expansion RS232C Communication Module Terminal Arrangement and Wiring Diagrams
FC5A-SIF2 — Screw Terminal Type
Applicable Terminal Block:
FC4A-PMT10P (supplied with the expansion RS232C communication module)
PWR
SD
RD
RS232C
RS
ER
SD
RD
DR
SG
NC
Note:
The
terminals can be used as junction terminals of functional ground.
Terminal
I/O
Description
RS (RTS)
Output
Request to Send (constant voltage terminal)
ER (DTR)
Output
Data Terminal Ready
SD (TXD)
Output
Transmit Data
RD (RXD)
Input
Receive Data
DR (DSR)
Input
Data Set Ready
SG (SG)
—
Signal Ground
NC
—
—
—
Functional ground
—
Functional ground
—
Functional ground
Wiring Example
Caution
• Use a recommended cable or a similar shielded cable for wiring the expansion RS232C communica-
tion terminals. For the recommended cable, see page 2-87 and prepare the cable.
• When the expansion RS232C communication module may malfunction due to external noise, con-
nect the shield of the cable to a proper ground.
• Before wiring, read the user’s manual for the remote device connected to the expansion RS232C
communication module.
FC5A-SIF2
Terminal
RS (RTS)
ER (DTR)
SD (TXD)
RD (RXD)
DR (DSR)
SG (SG)
NC
RS232C
Remote Device
Shield
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