Omega RD200 - Manual (Page 23)

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4. CONNECTIONS 4.7 Communications terminals
These terminals are for the communications interface (option). For details of the connection, refer to the instruction
manual for the “Communications Interfaces” provided separately.
1 Communications terminals
RS-232C Terminals RS-422A Terminals RS-485 Terminals
2 RS-232C Connections
When your recorder is with the communications interface of RS-232C, three terminals of SD, RD and SG are
used but any control signal is not used. General personal computers are controlled by control signal. Wiring
processing for control signal in a connector depends upon how the control signal is used in a personal computer.
For details, refer to the instruction manual for your personal computer.
1) 9-pin connector
2) 25-pin connector
SD RD SG SDA SDB RDA RDB SG SA SB SG
CD
RD
SD
ER
SG
DR
RS
CS
1
2
3
4
5
6
7
8
SD
RD
SG
Personal computer Your recorder
Within 15 m
SD
RD
RS
CS
DR
SG
CD
ER
2
3
4
5
6
7
8
20
SD
RD
SG
Personal computer
(Ex. 3)
Your recorder
Within 15 m
SD
RD
RS
CS
DR
SG
CD
ER
2
3
4
5
6
7
8
20
Personal computer
(Ex. 3)
RD
SD
SG
SD
RD
RS
CS
DR
SG
CD
ER
2
3
4
5
6
7
8
20
Personal computer
(Ex. 2)
RD
SD
SG