Appendix BSpecifications
202
RS-232C Port Specifications
RS-232C Specifications The specifications for the RS-232C port are given below. Devices that meet
these specifications can be connected.
Connector Pin Assignments
Pin assignments for the RS-232C port are given in the following table.
Pin Abbreviation Name Direction
1 FG Field ground ---
2 SD (TXD) Send data Output
3 RD (RXD) Receive data Input
4 RS (RTS) Request to send Output
5 CS (CTS) Clear to send Input
6 --- Not used. ---
7 --- Not used. ---
8 --- Not used. ---
9 SG Signal ground ---
Connector fitting FG Field ground ---
System Configurations
IBM PC/AT or compatible
(9-pin male connector)
C200HS CPU Unit
Plug: XM2D-0901
(9-pin female)
Hood: XM2S-0913
Recommended
cable
RS-232C
port
Hood: XM2S-0911-E Plug: XM2A–0901 (9-pin male)
Provided with CPU Unit
Connections
The connections between the C200HS and a personal computer are illustrated
below as an example.
1
2
3
4
5
6
FG
SD
RD
RS
CS
–
–
–
SG
7
8
9
1
2
3
4
5
6
7
8
9
SD
RD
RS
CS
DR
SG
CI
9
ER
C200HS Personal Computer
SignalPin
No.
Signal Pin
No.
Shielded cable
CD
D-sub, 9-pin connector
Male connector on cable
D-SUB, 9-pin connector
Female connector on cable
5
1
9
6