IEI Integration AFL-4 series-N270 v2.10 - Manual (Page 32)

AFL-4 Series-N270 User Manual
Page 32
2.5.2 LAN Connectivity
The AFL-4 Series-N270 has two RJ-45 LAN connectors on the bottom panel. See figure
Figureٛ 2-6.
The PCIe lane from the Intel® ICH7 chipset of the AFL-4 Series-N270 is interfaced to the
Realtek RTL8111CP PCIe gigabit Ethernet (GbE) controllers. The RTL8111CP controllers
are connected directly to the RJ-45 connectors on the bottom panel and provide external
GbE connectivity. Some of the RTL8111CP controller features are listed below:
 Integrated 10/100/1000 transceiver
 Supports PCI Express™ 1.1
 Fully compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
 Supports IEEE 802.1P Layer 2 Priority Encoding
 Supports IEEE 802.1Q VLAN tagging
 Serial EEPROM
 Transmit/Receive on-chip buffer support
 64-pin QFN package (Green package)
2.5.3 External USB Connectors
There are two USB 2.0 connectors on the bottom panel of the AFL-4 Series-N270. Both
USB 2.0 connectors are interfaced directly to the USB controllers on the ICH7M
Southbridge. These USB connectors are fully compliant with USB specification Revision
2.0 and USB specification Revision 1.1 and can be interfaced to both USB 1.1 and USB
2.0 compliant devices. See figure Figureٛ 2-6.
2.6 AC’97 Audio Codec Controller
The integrated AC’97 Audio compliant audio controller on the Intel® ICH7M Southbridge
is integrated to a Realtek ALC888 audio codec. The Realtek ALC888 is connected to an
amplifier which powers the two 1.5 Watt speakers.
2.7 System Power
The system can be run in the AT power mode or the ATX power mode. Both these power
modes are described below.