3.7 Serial Port Configuration and Connection
The AFL3-W19A-AL series has two serial ports, including one RS-232/422/484 port
(COM1, RJ-45) and one RS-232 port (COM2, RJ-45). The jumper settings and pinouts of
the serial ports are listed in the following sections.
3.7.1 Serial Port Connection
The two serial ports are RJ-45 serial device connectors on the bottom panel. Each serial
port connects to a cable with a standard D-sub 9 connector at the other end (cable
included). Follow the steps below to connect a serial device to the AFL3-W19A-AL.
Step 1: Locate the RJ-45 connector. The location of the RJ-45 serial port connector is
shown in Chapter 1. The RJ-45 connector for the serial port can be identified
easily as the RJ-45 for the network has two LEDs on the port, while the
connector for the serial cable doesn’t.
Step 2: Insert the RJ-45 to D-sub 9 cable.
Step 3: Insert the serial connector. Insert the D-sub 9 connector of a serial device into
the D-sub 9 connector on the cable. See Figure 3-12.
Figure 3-12: Serial Device Connection
Step 4: Secure the connector. Secure the serial device connector to the external
interface by tightening the two retention screws on either side of the connector.
Step 0:
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