100
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
2 External Dimensions and Terminal Arrangement
2.2 Terminal layout
2.2.5 Expansion boards
*1.Data terminal ready uses it as a request to send by the handling of
the control line.
*2.Data set ready uses it as a possible to send by the handling
of the control line.
2.2.6 Special adapters
1. Analog special adapter
Pin No. Signal Name
1 CD(DCD) Receive carrier detection
2 RD(RXD) Receive data
3 SD(TXD) Send data
4 ER(DTR)
Data terminal ready
*1
5 SG(GND) Signal ground
6 DR(DSR)
Data set ready
*2
7, 8, 9 Not used
D-SUB 9pin (male)
RS-232C connector
Screw holes: #4-40UNC
(inch screw thread)
Screws to fix
FX3U-232-BD(-MB)
FX3U-485-BD(-MB)
FX3U-4AD-ADP
FX3U-4AD-PT-ADP
FX3U
-4DA-ADP
FX
3U-4AD-TC-ADP
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