Rockwell Automation 57C570 AutoMax PC3000 User Manual - Manual (Page 129)

11Ć1
11.0 CONNECTING DEVICES TO
THE AutoMax PC3000
SERIAL CARD PORTS
You can connect devices, such as modems or data display
equipment, to ports A and B on the AutoMax PC3000 Serial card.
Port A supports either the EIA RSĆ232 or RSĆ422 standard, which lets
you connect a variety of Data Communications Equipment (DCE).
When Port B is not configured as a programmingĆdevice connection,
you can connect other RSĆ232 devices, such as modems.
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See this section:
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Connecting Devices to Port A
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11.1
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Connecting Devices to Port B
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11.2
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Accessing the Serial Card Ports
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11.3
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What to Do Next
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11.4
11.1 Connecting Devices to Port A
You can connect modems or other DCE devices to Port A of the
AutoMax PC3000 Serial card. You can configure Port A to use either
the RSĆ232 or RSĆ422 standard. The port supports asynchronous,
fullĆduplex communication and has an opticallyĆisolated, 9Ćpin female
DĆshell connector.
When connecting a DCE device to Port A, make sure that you:
D configure the port to accept an RSĆ232 or RSĆ422 DCE device
D use the correct cable to connect the device to the Port A
11.1.1 Selecting RSĆ232 or RSĆ422 Interface
You can use either the RSĆ232 or RSĆ422 protocol for communicating
out Port A. By default, the port is configured for RSĆ232
communication. The settings of jumpers E1 and E2 determine which
standard that Port A uses. Use Figure 11.1 to help you set jumpers
E1 and E2.