Serial ports, Figure 3-4. rs-422/rs-485 serial port pins – Lantronix EDS Device Servers EDS16PR User Manual
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3: Installation: EDS4100
EDS Device Servers User Guide
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Serial Ports
The front of the EDS4100 has four male DB9 serial ports. These ports allow you to
connect up to four standard serial devices:
All four serial ports support RS-232 devices. See Figure 3-3 for pin assignments.
Serial ports 1 and 3 also support RS-422 and RS-485 serial devices.
See Figure 3-4 for pin assignments.
All four serial ports are configured as DTE and support baud rates up to 230,400 baud.
Figure 3-3. RS-232 Serial Port Pins (Serial Ports 1, 2, 3, 4)
Figure 3-4. RS-422/RS-485 Serial Port Pins
Note:
Multi-drop connections are supported in 2-wire mode only.
RS-422/485 4-wire Pin Assignments
(Serial Ports 1 and 3)
RS-485 2-wire Pin Assignments
(Serial Ports 1 and 3)