Page 22–2
FOCUS System Manual
22.2 Application
The SRD Module's four independent channels and
transparent RS-232C communication capability
give you a wide assortment of useful applications.
You can connect modems and other communica-
tion devices to each channel independently.
You can use one or all of the module's channels for
Supervisory Control and Data Acquisition
(SCADA) and other data terminal communica-
tions requirements. The module is especially
useful when extension of the SCADA communi-
cations lines to remote sites is inconvenient or
expensive. The two most typical types of applica-
tion are 1) connecting remote terminal units
(RTUs) from remote locations to a master and 2)
connecting other types of terminal equipment
Figure 22–4. SRD-4, SRD-4N Interface Cable.
Figure 22–5. SRD-2 Configuration Example.
Ch. A
Ch. A
Ch. B
Ch. B
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