4 stereo speakers, 5 usb 2.0 port, 1 serial port connectors – IEI Integration AFL-4 series-N270 v1.05 User Manual
Page 32: 2 lan connectivity, Xternal, Eripheral, Nterface, Onnectors, Figure 2-7: com ports, 5 external peripheral interface connectors

AFL-4 Series-N270 User Manual
Page 32
2.4.4 Stereo Speakers
Two 1.5 W stereo speakers on the front side of the AFL-4 Series-N270 are interfaced to
the system through a class-B dual output amplifier.
2.4.5 USB 2.0 Port
One USB 2.0 port is located on the front side of the AFL-4 Series-N270.
2.5 External Peripheral Interface Connectors
The following section describes the external peripheral interface connectors on the bottom
panel of the subsystem.
2.5.1 Serial Port Connectors
The AFL-4 Series-N270 has two COM ports by RJ-45. One of these ports (COM1) is
RS-232 only port. The other COM port (COM3) can be configured as a RS-232, RS-422 or
an RS-485 serial port.
Figure 2-7: COM Ports
2.5.2 LAN Connectivity
The AFL-4 Series-N270 has two RJ-45 LAN connectors on the bottom panel.