Lanner LEC-3012 - Manual (Page 18)

18
Board Layout
Chapter 3
Embedded and Industrial Computing
Connectors on LEK-AU8 only
RS-232/422/485 Serial Port(COM5~COM8, CN2):
P I N
NO.
1 2 3 4 5 6 7 8 9 10
RS-232 SIN SOUT GND SIN SOUT GND
RS-422 TX+ TX- RX- RX+ GND TX+ TX- RX- RX+ GND
RS-485 TX+ TX- RX- RX+ GND TX+ TX- RX- RX+ GND
RS-485 D+ D- GND D+ D- GND
P I N
NO.
11 12 13 14 15 16 17 18 19 20
RS-232 SIN SOUT GND SIN SOUT GND
RS-422 TX+ TX- RX- RX+ GND TX+ TX- RX- RX+ GND
RS-485 TX+ TX- RX- RX+ GND TX+ TX- RX- RX+ GND
RS-485 D+ D- GND D+ D- GND
LAN3/LAN4: The LAN ports are provided by Intel 82583V
Ethernet controller whose interface complies with PCI-e
1.1 (2.5 Ghz).
Pin No. Description
Fast Ethernet Gigabit Ethernet
1 TX+ MD0+
2 TX- MD0-
3 RX+ MD1+
4 T45 MD2+
5 T45 MD2-
6 RX- MD1-
7 T78 MD3+
8 T78 MD3-
Connectors on LEK-AU6 only
RS-232/422/485 Serial Port(COM5~COM6, CN2):
P I N
NO.
1 2 3 4 5 6 7 8 9 10
RS-232 SIN SOUT GND SIN SOUT GND
RS-422 TX+ TX- RX- RX+ GND TX+ TX- RX- RX+ GND
RS-485 TX+ TX- RX- RX+ GND TX+ TX- RX- RX+ GND
RS-485 D+ D- GND D+ D- GND
Note: The default protocol is in RS-232. To switch
between RS-232, 422 and 485, use the BIOS menu
as shown above.
COM6
1 2 3 4 5
6 7 8 9 10
COM5
1 2 3 4 5 6 7 8 9 10
COM5 COM7
11 12 13 14 15 16 17 18 19 20
COM6 COM8