Communications Terminals - Omega RD2800 Series User Manual

4. CONNECTIONS
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
SD RD
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
Personal computer
CD 1
RD
2
SD 3
ER
4
SG
5
DR
6
RS
7
CS
8
2) 25-pin connector
Personal computer
(Ex. 3)
SD
2
RD 3
RS
4
CS
5
DR
6
SG
7
CD 8
ER
20
4.7 Communications terminals
RS-422A Terminals
SG SDA SDB RDA RDB SG
Your recorder
SD
RD
SG
Within 15 m
Personal computer
(Ex. 2)
SD
RD 2
SD
RD 3
RS
4
CS
5
DR
6
SG
SG 7
CD 8
ER
20
－１９－
SA
Personal computer
(Ex. 3)
SD
RD 2
SD
RD 3
RS
4
CS
5
DR
6
SG
SG 7
CD 8
ER
20
Within 15 m
RS-485 Terminals
SB SG
Your recorder
SD
RD
SG