IDEC MICROSmart FC6A Series User Manual page 172

2: P S
RODUCT PECIFICATIONS
Terminal Arrangement and Wiring Examples
Notes:
For the cables to use for wiring, fabricate and use the recommended cable or an equivalent type of shielded cable.

When there is a risk of malfunction due to noise, ground the shielded cables.

Fully read and understand the manual for the device that will be connected to and communicate with the communication cartridge before

wiring it.
FC6A-PC1
Terminal Name
*1
RS (RTS)
ER (DTR)
SD (TxD)
RD (RxD)
DR (DSR)
SG (SG)
*1 The RS terminal is a constant output terminal.
FC6A-PC3
Terminal Name
A
B
SG
*1 The terminals are shorted inside the cartridge.
FC6A-PC3
RS485
A B SG A B SG
Terminating
Resistance
Note: When communication quality is unstable, add terminating resistance matched to the characteristic impedance to both ends of the cable. Use
resistance with a rating of 1/2 W or higher.
2-142
Output
Output
Output
Input
Input
―
FC6A-PC1
RS232
RS ER SD RD DR SG
FE
I/O
I/O
―
Shield
FC6A S MICROS
ERIES
I/O Direction
Shield
I/O Direction
FC6A-PC3
RS485
A B SG A B SG
FE
U ' M FC9Y-B1722
MART SER S ANUAL
Signal Name, etc.
Request to send
Data terminal ready
Transmitted data
Received data
Data set ready
Signal ground
RS232C
Interface Device
Signal Name, etc.
Data A *1
Data B *1
*1
Signal ground
Terminating Resistance
Interface Device
RS485