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1.4.7 RS-232C Interface
This port is used to connect the reader to the host containing RS-232C interface such as PC or PLC
(Programmable logic controller). If you use the PC as a host, prepare a cross cable to connect the PC to the
port.
Connector:
D-sub 9pin (male), inch screw (#4-40)
Pin assignment
Pin No
Name
I/O
Function
1 - -
-
2 RD IN
Receive
Data
3 SD OUT
Send
Data
4 - -
-
5 SG -
Signal
Ground
6 - -
-
7 RS OUT
Request
to
Send
8
CS
IN
Clear to Send
9 - -
-
5
9
1
6