DFI AL551 User manual

Intel
Atom
E3900 Series
(Bottom Side)
83 90
M.2 M Key
Mini PCIe
DDR3L SO-DIMM (Bottom Side)
8
1
1
2
5
6
1
JP11
SPI Flash
BIOS
JP6
Front
Panel
Buzzer
LVDS LCD Panel
Battery
COM 1/2
SW1
Front
Audio
Digital
I/O
DP++
JP12
USB 1/4
(USB 3.1 Gen 1)
LAN2
LAN1
VGA
SMBus
USB 2/3
(USB 2.0)
DC-In Note
USB Type
C Note
Standby
Power LED
Speaker
Out
LCD/Inverter
Power
EIO (optional)
USB 5/6
1
1
12
40
1
2
19
20
1
1
2
5
6
1
11
1
1
1 79
80
2
9 10
1
2
1
1 5
2
2
9
10
1
ON
2
JP1 JP10
SATA 0
SATA
Power
Note:
The DC-In jack can be coaxial, vertical 4-pin, or right angle 4-pin. The USB Type C
is optional, and supports USB 3.1 Gen 1 OTG only available for Linux.
1
www.dfi.com
Quick Reference
AL551
Board Layout (Top View)
933-AL5511-000G A47013948

Pin Assignments for I/O Connectors
Front Panel
Pin Assignment Pin Assignment
HDD-LED
6HDD_LED
RESET
5Reset Button
3GND 3GND
PWR-LED
4SUS_LED
PWR-BTN
1Power Button
2V_LED 3GND
DIO
Pin Assignment Pin Assignment
1DIO7 2DIO2
3DIO6 4DIO1
5DIO5 6DIO0
7DIO4 85V
9DIO3 10 GND
M.2 Signal Select JP1
SATA (default) 1-2 On
PCIe 2-3 On
Clear CMOS JP6
Normal (default) 1-2 On
Clear CMOS Data 2-3 On
LCD/Inverter Power JP11
+12V (default) 1-2 On
+5V 2-3 On
Backlight Brightness JP10
+3.3V (default) 1-2 On
+5V 2-3 On
Panel Power Select JP12
+12V 1-2 On
+5V 3-4 On
+3.3V (default) 5-6 On
LVDS Channel and BPP SW1
Single LVDS 1 On
Dual LVDS 1 Off
VESA (24bpp) 2 On
JEIDA or VESA (18bpp) 2 Off
Jumper Settings
DIO
10 2
9 1
Front Panel
1 5
2 6
SW1
2Quick Reference | AL551

COM 1/2
Pin RS232 RS422
Full Duplex RS485
1DCD_1 TX-_1 DATA-_1
2DSR_1 NC NC
3RD_1 TX+_1 DATA+_1
4RTS_1 NC NC
5TD_1 RX+_1 NC
6CTS_1 NC NC
7DTR_1 RX-_1 NC
8RI_1 NC NC
9GND GND GND
10 GND GND GND
11 DCD_2 TX-_2 DATA-_2
12 DSR_2 NC NC
13 RD_2 TX+_2 DATA+_2
14 RTS_2 NC NC
15 TD_2 RX+_2 NC
16 CTS_2 NC NC
17 DTR_2 RX-_2 NC
18 RI_2 NC NC
19 GND GND GND
20 GND GND GND
LVDS LCD Panel
Pin Assignment Pin Assignment
1GND 2GND
3LVDS_Out3+ (Odd_3+) 4LVDS_Out7+ (Even_3+)
5LVDS_Out3- (Odd_3-) 6LVDS_Out7- (Even_3-)
7GND 8GND
9LVDS_Out2+ (Odd_2+) 10 LVDS_Out6+ (Even_2+)
11 LVDS_Out2+ (Odd_2+) 12 LVDS_Out6- (Even_2-)
13 GND 14 GND
15 LVDS_Out1+ (Odd_1+) 16 LVDS_Out5+ (Even_1+)
17 LVDS_Out1- (Odd_1-) 18 LVDS_Out5- (Even_1-)
19 GND 20 GND
21 LVDS_Out0+ (Odd_0+) 22 LVDS_Out4+ (Even_0+)
23 LVDS_Out0- (Odd_0-) 24 LVDS_Out4- (Even_0-)
25 GND 26 GND
27 LVDS_CLK1+ (Odd_CLK+) 28 LVDS_CLK2+ (Even_CLK+)
29 LVDS_CLK1- (Odd_CLK-) 30 LVDS_CLK2- (Even_CLK-)
31 GND 32 GND
33 DDC_CLK 34 N.C.
35 DDC_DATA 36 +3.3V
37 Panel Power 38 Panel Power
39 Panel Power 40 Panel Power
LCD/Inverter Power
Pin Assignment
1GND
2GND
3Dimming Control
4Panel Power
5+3.3V
6Panel Backlight On/Off
7LCD/Inverter Power
8LCD/Inverter Power
COM 1/2
19 1
20 2
LVDS
LCD
Panel
1
39
2
40
LCD/
Inverter
Power
1
8
3Quick Reference | AL551

DFI reserves the right to change the specifications at any time prior to the
product's release. This QR may be based on editions that do not resemble your
actual products. For more documentation and drivers, please visit the download
page at go.dfi.com/AL551, or via the QR code to the right.
Front Audio
Pin Assignment Pin Assignment
1Mic-L 2GND
3Mic-R 4N.C.
5Line-R 6Mic-JD
7GND 8---
9Line-L 10 Line-JD
SMBus
Pin Assignment Pin Assignment
13V3SB 2GND
3SMB_CLK 4SMB_DATA
5SMB_ALERT 6GND
EIO
Pin Assignment Pin Assignment
1PCIE_RX0+ 2PCIE_TX0+
3PCIE_RX0- 4PCIE_TX0-
5GND 6GND
7PCIE_RX1+ 8PCIE_TX1+
9PCIE_RX1- 10 PCIE_TX1-
11 GND 12 GND
13 PCIE_CLK+ 14 N.C.
15 PCIE_CLK- 16 N.C.
17 GND 18 GND
19 USB_SSRX0+ 20 N.C.
21 USB_SSRX0- 22 N.C.
23 GND 24 GND
25 USB_SSTX0+ 26 N.C.
27 USB_SSTX0- 28 N.C.
29 GND 30 N.C.
31 SATA0_RX+ 32 N.C.
33 SATA0_RX- 34 GND
35 GND 36 PCIE_WAKE
37 SATA0_TX+ 38 N.C.
39 SATA0_TX- 40 N.C.
41 GND 42 SMB_STB_CK
43 DDI0_CTRLCLK_AUX+ 44 SMB_STB_DAT
45 DDI0_CTRLCLK_AUX- 46 GND
47 GND 48 CLK33M
49 DDI0_PAIR0+ 50 LPC_AD0
51 DDI0_PAIR0- 52 LPC_AD1
Pin Assignment Pin Assignment
53 GND 54 LPC_AD2
55 DDI0_PAIR1+ 56 LPC_AD3
57 DDI0_PAIR1- 58 LPC_SERIRQ
59 GND 60 LPC_FRAME#
61 DDI0_PAIR2+ 62 DDI0_HPD
63 DDI0_PAIR2- 64 DDI0_AUX_Detect
65 GND 66 GND
67 DDI0_PAIR3+ 68 GPIO_STB (INT)
69 DDI0_PAIR3- 70 PLT_RESET#
71 GND 72 N.C.
73 3V3SB_1 74 N.C.
75 3V3SB_2 76 PS_ON
77 AUD_GND 78 Line-JD
79 Line1_L 80 Line1-R
83 GND 84 GND
85 GND 86 GND
87 5VSB 88 5VSB
89 5VSB 90 5VSB
Extension I/O
(EIO)
2 80
1 79
SMBus
1 5
2
1
9
2
10
Front
Audio
4Quick Reference | AL551