Usb Device Connection; Table 4-5: Rs-422/485 Serial Port Pinouts (Com3) - IEI Technology AFL2-W21A/AB-H61 SERIES User Manual

AFL2-W21A/AB-H61
The pinouts of the RS-422/485 serial ports are shown below.
Pin Description
1 RXD485+
3 TXD485+

Table 4-5: RS-422/485 Serial Port Pinouts (COM3)

4.14.5 US B De vic e Co n n e c tio n
NOTE:
User must install the USB 3.0 driver before connecting a USB device to
the system or else the system may not recognize the connected
device.
There are three USB 2.0 connectors and two USB 3.0 connectors on the
AFL2-W21A/AB-H61. To connect a USB device, please follow the instructions below.
S te p 1: Locate the USB connectors. The locations of the USB connectors are shown
in Chapter 1.
Align the connectors. Align the USB device connector with one of the
S te p 2:
connectors on the bottom panel. See Figure 4-29.
Pin Description
2 RXD485#
4 TXD485#
P a g e 65