Lanner LEC-2250 User manual

>>
Embedded &
Industrial Computing
Hardware Platforms for Embedded and Industrial Computing
LEC-2250
Preliminary
User's Manual
Publication date:2013-01-24

i
About
About
Embedded and Industrial Computing
Overview
Icon Descriptions
The icons are used in the manual to serve as an indication
of interest topics or important messages. Below is a
description of these icons:
NOTE: This check mark indicates that
there is a note of interest and is something
that you should pay special attention to
while using the product.
WARNING: This exclamation point
indicates that there is a caution or
warning and it is something that could
damage your property or product.
Online Resources
The listed websites are links to the on-line product
information and technical support.
Resource Website
Lanner http://www.lannerinc.com
Product Resources http://assist.lannerinc.com
RMA http://eRMA.lannerinc.com
Copyright and Trademarks
This document is copyrighted, © 2012 All rights are
reserved. The original manufacturer reserves the right to
make improvements to the products described in this
manual at any time without notice.
No part of this manual may be reproduced, copied,
translated or transmitted in any form or by any means
without the prior written permission of the original
manufacturer. Information provided in this manual is
intended to be accurate and reliable. However, the original
manufacturer assumes no responsibility for its use, nor for
any infringements upon the rights of third parties that
may result from such use.
Acknowledgement
Intel, Pentium and Celeron are registered trademarks of
Intel Corp.
Microsoft Windows and MS-DOS are registered trademarks
of Microsoft Corp.
All other product names or trademarks are properties of
their respective owners.
Compliances
CE
This product has passed the CE test for environmental
specifications. Test conditions for passing included the
equipment being operated within an industrial enclosure.
In order to protect the product from being damaged by
ESD (Electrostatic Discharge) and EMI leakage, we strongly
recommend the use of CE-compliant industrial enclosure
products.
FCC Class A
This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when
the equipment is operated in a commercial environment.
This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required
to correct the interference at his own expense.

TTaTTable of Contentsbeable of Contents
ii
Chapter 1: Introduction 3
System Specication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2: System Components 5
System Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Front Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rear Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 3: Board Layout 9
External Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
External Connectors for board LEK-IOA4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Internal Connectors and Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Connectors and Jumpers List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Chapter 4: Hardware Setup 18
Preparing the Hardware Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Installing the System Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Installing the Hard Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Installing the CompactFlash Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Installing the 3G SIM Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Installing the Wireless 3G Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Installing the Wi-Fi Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Appendix A: Programming Watchdog Timer 22
Appendix B: Terms and Conditions 28
Warranty Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
RMA Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

3
Introduction
Chapter 1
Embedded and Industrial Computing
Chapter 1:
Introduction
Thank you for choosing the LEC-2250. The LEC-2250
features Intel Atom D2550(dual core) and NM10 chipset.
It features dual LAN and dual display interfaces via DVI-D
and VGA connectors as well as audio ports (microphone/
lineout). The system also features extra COM ports (
a total of 4 COM ports) for high demand of industrial
communication and application.
The following highlights the functionalities of the LEC-
2250 system:
Intel Integrated Graphics Media Accelerator 3650•
Dual VGA and DVI-D video output for displaying media•
content side by side.
Dual 10/100/1000 Mbps LAN•
USB x 6•
SATA HDD and CF socket support•
Totally 4 serial ports supporting Hardware Auto flow•
Control: DB9 x2 for RS232, 422, and 485, and DB9x2 for
RS232.
Audio input and output through Mic-in and Line-out•
jack
Featuring power switch through Phoenix contact for•
distant power on/off control
Featuring DC-in power connector through Phoenix•
contact with input from 18 to 36 V
Two mini-PCIe connectors (one comes with a SIM•
card reader) for wireless Internet and wireless LAN
connection
System Specification
Dimensions (WxHxD) 273.8x60x144mm
(10.78”x2.36”x5.67”)
Processor Intel ATOM D2550 1.86GHz CPU
Chipset Intel NM10
System
Memory
Technology DDR3 SODIMM x1
Max. Capacity Up to 4GB
Storage IDE CF socket Type I/II x1
SATA 2.5” HDD/SSD drive bay x1
Ethernet Controller Intel® 82583V x2
Graphic Controller Intel Integrated Graphics Media Ac-
celerator 3650
Audio Controller Realtek ALC886
IO
LAN GbE RJ45 x2
Display DB15 x1 for VGA (1920x1200)
DVI-D x1 (1920x1200)
Video Grabber N/A
Audio Phone Jack x2 for Mic-in and Line-Out
Serial I/O DB9 x4 for RS232/422/485
GPS N/A
USB 2.0 Type A x6
Power Input 2-pin terminal block
Expansion
Mini-PCIex2: one slot supports PCIe and
USB 2.0 signal, the other one only sup-
ports USB 2.0 with SIM card reader
Others External: 2x SMA antenna holes,
reset switch
Power Input +18~36Vdc, ATX Mode
AC Adapter Ordering option
Hardware Monitor Fintek F81865 integrated watchdog
timer 1~255 level
OS Support Linux, Windows 7/7 Embedded/
XP/XP Embedded
Certications CE, FCC Class A, RoHS
Compliance N/A
Operating
Temperature
Range
With Industrial
Components -20~55°C/-4~131°F
With Commercial
Components 5~45°C / 23~113°F

4
Introduction
Chapter 1
Embedded and Industrial Computing
Package Contents
Your package contains the following items:
LEC-2250 Fanless Embedded System•
Serial-ATA Data Cable (P/N:080W1N0002001)•
2-pin Female Terminal Block (P/N: 04AW20023Z101)•
Mini-PCIe module screws (P/N: 070W101000401)•
Drivers and User’s Manual CD (P/N: S09OADA19H100)•
Optional Accessories
The system has a variety of optional accessories including
the power cords and Wi-Fi or 3G modules for extended
capabilities. For details of these modules, visit:
http://www.lannerinc.com/Embedded_Computing/LEC-
2250

5
System Components
Chapter 2
Embedded and Industrial Computing
Chapter 2:
System Components
System Drawing
Mechanical dimensions of the LEC-2250
Unit: mm

6
System Components
Chapter 2
Embedded and Industrial Computing
Block Diagram
The block diagram depicts the relationships among the
interfaces and modules on the motherboard..
Processor
Intel
D2550
(BGA)
LEB-2250
DC-in
18~36V
(2pin terminal block with
lock)
LEK-IOA4
Serial Port
2x DB-9 for RS-232
USB USB 2.0
Type A x2
PCH
NM10
DMI2 x4
DDR3 800/1067
1x SO-DIMM up to 4GB
Fintek
81865
H/W Monitor
WDT
SATA
USB
Flash BIOS
SPI
Mini-PCIe Socket with
SIM card Reader
GbE Controller
Intel 82583V
2x PCIe LAN1
RJ-45
USB 2.0
Type A x 4
SATA Connector
2x SATA connectors
USB
VGA
Up to 1920x1200
LPC
1x 2.5" HDD/SSD LAN2
RJ-45
DVI-D
Up to 1920x1200
Serial Port
2x DB-9 for RS-232/422/485
with hardware auto flow
control
Half-mini PCIe Slot PCIe
USB

7
System Components
Chapter 2
Embedded and Industrial Computing
Front Components
SPEED LINK/ACT
F5
F1 F2
Component Description Pin Definition
Reference
F1 DC-In (power) 1x2 Pin Phoenix
Contact Connector
Power-in Connector. CN1 on page 17
F2 Dual USB 2.0 Ports An USB type A connector. USB1 on page 17
F3 Reset Reset switch SW5 on page 15
F4 MIC IN/LINE OUT Connect the audio devices to these ports.
The Microphone and line out port are
provided by Realtek ALC 886.
J3, J4 on page 13
F5 Four USB 2.0 Ports An USB type A connector. USB1, USB2 on Page
15
F6 Two 10/100/1000Mbps LAN ports Two RJ-45 (network) jacks with LED
indicators as described below. Both LAN
ports are provided by Intel 82583V. The
82583V supports PXE remote boot
LINK/ACT (Yellow)
On/Flashing: The port is linking and•
active in data transmission.
Off: The port is not linking.•
SPEED (Green/Amber)
Amber: The connection speed is•
1000Mbps.
Green: The connection speed is•
100Mbps
Off: The connection speed is 10Mbps.•
LANB1/LANB2 on
page 14
F7 HDD (Yellow)
Status and
Power LED (Green)
HDD
Blinking: data access activities•
Off: no data access activities•
Status
A programmable dual green/orange LED
which can be used for indicating system
status.
Power
On: The computer is on.•
Off: The computer is off .•
F8 Power-on Switch A power-on switch through the Phoenix
contact for distant power-on/off control
CN4 on page 15
F9 Power Button with dual LED ATX Power-on button with LEDs: Standby
mode in Red; Power-on mode in Green
U45 on page 15
F3 F4 F6 F7 F8 F9

8
System Components
Chapter 2
Embedded and Industrial Computing
Rear Components
Component Description Pin Definition Reference
R1 DVI-D A DVI-D port (single link) which is provided by
Intel HD Graphic Engine. This port can support
up to 1920x1200 @ 60 Hz resolution.
CN1 on page 16
R2 VGA Port The displays can support VGA up to 2048x1536
resolution.
VGA1 on page 14
R3 Serial Ports COM1 and
COM2
Serial ports through the DB-9 connector; Both
COM1 and COM2 support RS-232/422/485 with
jumper selection (and BIOS menu) among RS-
232/422/485. It also supports hardware auto
flow control
COM1/COM2 on page 13
R4 Serial Ports COM3 and
COM4
Serial ports through the DB-9 connector. These
two only support RS-232.
COM3/COM4 on page 17
R2
R1 R3 R4

9
Board Layout
Chapter 3
Embedded and Industrial Computing
Chapter 3:
Board Layout
External Connectors
The following picture highlights the location of the
external ports. Refer to the table 3.1 Connector List for
more details.
LANB2
J3
U45 CN4 LANB1 USB1 USB2
SW5
J4
CN1 VGA1 COM2 COM1
LEB-7050

10
Board Layout
Chapter 3
Embedded and Industrial Computing
External Connectors for board LEK-IOA4
The following picture highlights the location of the
external ports for the daughter board LEK-IOA4. Refer to
the table 3.2 Connector List for more details.
CN1
USB1
COM3 COM4
LEK-IOA4

11
Board Layout
Chapter 3
Embedded and Industrial Computing
Internal Connectors and Jumpers
The following picture highlights the location of internal
connectors and jumpers. Refer to the table 3.1 Connector
List for more details.
LEB-7050
CN1
CN3
FAN1 JP1
MPCIE1
SW3
SW4
SW2
SW1
CF1
JP2
SIM Card
Reader
CON1
MPCIE2
SATA1

12
Board Layout
Chapter 3
Embedded and Industrial Computing
Connectors and Jumpers List
The tables below list the function of each of the board
jumpers and connectors by labels shown in the above
section. The next section in this chapter gives pin
definitions and instructions on setting jumpers.
Table 3.1 Connector List for the Main Board
Labels Function Pin Denition Refer-
ence Page
CF1 CompactFlash Connector P16
CN1 DVI-D Port P16
CN4 Power Switch with Phoenix Contact Interface P15
COM1 RS232/422/485 Serial Port P13
COM2 RS232/422/485 Serial Port P13
CON1 SATA Power Connector P14
FAN1 Fan Connector P16
J3 Line-Out Audio Jack P13
J4 Mic-in Audio Jack P13
JP1 Clear CMOS Jumper P14
JP2 Hardware or Software Reset Selection Jumper P16
LANB1 Ethernet Port 1 P14
LANB2 Ethernet Port 2 P14
MPCIE1 Mini-PCIe Connector P15
MPCIE2 Mini-PCIe Connector P15
SATA1 SATA Connector P14
SW1 Select COM1 Protocol Setting P13
SW2 Select COM Port Terminating Resistance P13
SW3 Select COM Port Terminating Resistance P13
SW4 Select COM2 Protocol Setting P13
SW5 Reset Button P15
U45 Power Button P15
USB1/USB2 USB Port 1-4 Connector P15
VGA1 VGA Connector P14
Table 3.2 Connector List for LEK-IOA4 Board
Labels Function Pin Denition Refer-
ence Page
CN1 DC_IN CONNECTOR P17
COM3 RS232 Serial Port P17
COM4 RS232 Serial Port P17
USB1 USB ports 1-2 P17

13
Board Layout
Chapter 3
Embedded and Industrial Computing
SW1: Select COM1 Protocol Setting
SW4: Select COM2 Protocol Setting
RS-232
RS-422
RS-485
Switch Combination
Protocol
SW1/SW4
RS-232 (default) 1 On (2,3,4 O )
RS-422 2,3 On (1,4 O )
RS-485 2,4 On (1,3 O )
Note: Besides jumper settings, you should also
select the communication protocol in the BIOS as
shown in the following picture, select Advanced
->F81865 SuperIO Configuration->Serial Port 0/1
Driver->RS232 or RS485
Jumper Settings
Microphone-in Audio Jack (J4)
Line-out Audio Port (J3)
RS-232/422/485 Serial Port (COM1 and COM2) with
hardware auto flow control: It is a RS-232/422/485 port
through the D-SUB9 connector.
6789
12345
Pin No. Function
1 CO_GND
2 MIC_INL
3 CO_GND
4 INSULATOR
5 MIC_INR
Pin No. Function
1 CO_GND
2 LINOUT-L
3 CO_GND
4 INSULATOR
5 LINOUT- R
Pin No. Pin Name
RS-232 RS-422 RS-485
1 DCD TXD- DATA-
2 RxD TXD+ DATA+
3 TxD RxD+
4 DTR RxD-
5 GND Signal Ground
6 DSR
7 RTS
8 CTS
9 RI
SW1
1
2
3
4
ON
1
2
3
4
1
2
3
4
1
2
3
4
4 3 2 1
SW4
4 3 2 1
4 3 2 1
ON
4 3 2 1
The Main Board

14
Board Layout
Chapter 3
Embedded and Industrial Computing
SW2: Select COM1 terminating resistance
SW3: Select COM2 terminating resistance
Clear CMOS jumper (JP1): It is for clearing the CMOS
settings.
LAN1/LAN2 Ports (LANB1/LANB2): The LAN ports are
provided by Intel 82583V Ethernet controller whose
interface complies with PCI-e 1.1 (2.5 Ghz). It supports PXE
remote boot as the advanced management feature
Pin No. Description
Fast Ethernet Gigabit Ethernet
1 TX+ BI_DA+
2TX- BI_DA-
3 RX+ BI_DB+
4 -- BI_DC+
5 -- BI_DC-
6RX- BI_DB-
7 -- BI_DD+
8 -- BI_DD-
VGA (VGA1)
Pin Signal Pin Signal Pin Signal
1 Red Color
Signal
6 GND 11 NC
2 Green Color
Signal
7 GND 12 DDC DAT
3 Blue Color
Signal
8 GND 13 HSYNC
4 NC 9 VGA power 14 VSYNC
5 GND 10 GND 15 DDC CLK
Serial-ATA Connector (SATA1): It is for connecting a 2.5’’
harddisk to serve as your system’s storage. It can support
SATA II which features Data transfer rates up to 3.0 Gb/s
(300 MB/s).
4-pin Serial-ATA Power Connector (CON1): It is for
connecting the SATA power cord.
Pin No. Pin Name
1-2 Normal (Default)
2-3 Clear CMOS
3
2
1
15 14 13 12 11
5 4 3 2 1
Terminating resistance TX, RX on
SW2 SW3
Terminating resistance RX on
SW3
SW2
SATA1
Pin No. Function
1 GND
2 TX0_P
3 TX0_N
4 GND
5 RX0_N
6 RX0_P
7 GND
Pin No. Function
1 +12V
2 GND
3 GND
4 +5V
1
2
3
4
SW2
4 3 2 1
SW3
4 3 2 1
ON ON
Terminating resistance off
Switch Settings
Result
SW2/SW3
Terminating Resistance OFF 1,2,3,4 Off
Terminating Resistance TX, RX ON 1,2,3,4 On
Terminating Resistance RX on 1,2 Off
3,4 On

15
Board Layout
Chapter 3
Embedded and Industrial Computing
Mini PCI Express Connector (for 3G card with USB
signal, MPCIE2):
PIN Pin Name PIN Pin Name
1 WAKE# 27 GND
2 VCC3 28 1.5V
3 RSV1 29 GND
4 GND 30 SMB_CLK
5 RSV2 31 NC
6 1.5V 32 SMB_DATA
7 CLKREQ# 33 NC
8 UIM_PWR 34 GND
9 GND 35 GND
10 UIM_DATA 36 USB_D-
11 NC 37 RSV5
12 UIM_CLK 38 USB_D+
13 NC 39 RSV6
14 UIM_RST 40 GND
15 GND 41 RSV7
16 UIM_VPP 42 LED_WWAN#
17 RSV3 43 RSV8
18 GND 44 NC(LED_WLAN#)
19 RSV4 45 RSV9
20 W_DISABLE# 46 NC(LED_WPAN#)
21 GND 47 RSV10
22 PERST 48 1.5V
23 NC 49 RSV11
24 VCC3 50 GND
25 NC 51 RSV12
26 GND 52 VCC3
Mini PCI Express Connector (for Wi-Fi connection,
MPCIE1):
PIN Pin Name PIN Pin Name
1 WAKE# 27 GND
2 VCC3 28 1.5V
3 RSV1 29 GND
4 GND 30 SMB_CLK
5 RSV2 31 PETn
6 1.5V 32 SMB_DATA
7 CLKREQ# 33 PETp
8 NC 34 GND
9 GND 35 GND
10 NC 36 USB_D-
11 REFCLK- 37 RSV5
12 NC 38 USB_D+
13 REFCLK+ 39 RSV6
14 NC 40 GND
15 GND 41 RSV7
16 NC 42 LED_WWAN#
17 RSV3 43 RSV8
18 GND 44 NC(LED_WLAN#)
19 RSV4 45 RSV9
20 W_DISABLE# 46 NC(LED_WPAN#)
21 GND 47 RSV10
22 PERST 48 1.5V
23 PERn 49 RSV11
24 VCC3 50 GND
25 PERp 51 RSV12
26 GND 52 VCC3
Dual USB Port Connector #0 and #1 (USB1):
Dual USB Port Connector #2 and #3 (USB2)
Dual-Color Power Button (U45): The power button also
provides LED to indicate power state.
PIN Description PIN Description
PAD1 Ground PAD2 Ground
1 Ground 3 BUTTON-
2 Ground 4 BUTTON-
L1 PWR_LED+/
STB_LED-
L2 PWR_LED- /
STB_LED+
Power-on Switch through Phoenix Contact (CN4): A
Phoenix connector for distant power switch.
Reset Button (SW5)
Pin NO. Description
1 Reset Signal
2 GND
3 NC
4 GND
1 2 3 4
5 6 7 8
Pin No. Pin Name
1 USB power
2 USB2_DAT-
3 USB2_DAT+
4 Signal Ground
5 USB Power
6 USB3_DAT-
7 USB3_DAT+
8 Signal Ground
Pin No. Pin Name
1 BUTTON-
2 Ground
1
3
2
4
2 1

16
Board Layout
Chapter 3
Embedded and Industrial Computing
DVI-D Connector (CN1): A single link DVI-D Connector
Pin No. Description Pin No. Description
1 TMDS Data 2- 13 NC
2 TMDS Data 2+ 14 5V
3 TMDS Data 2/4 shield 15 GND
4 NC 16 HOT PLUG DET
5 NC 17 TMDS Data 0-
6 DDC CLOCK 18 TMDS Data 0+
7 DDC DATA 19 TMDS Data 0/5
shield
8 NC 20 NC
9 TMDS Data 1- 21 NC
10 TMDS Data 1+ 22 TMDS CLK shield
11 TMDS Data 1/3 shield 23 TMDS CLK+
12 NC 24 TMDS CLK-
CompactFlash Connector (CF1)
Pin No. Description Pin No. Description
1 GND 26 CF_CD1#
2 CF_DD3 27 CF_DD11
3 CF_DD4 28 CF_DD12
4 CF_DD5 29 CF_DD13
5 CF_DD6 30 CF_DD14
6 CF_DD7 31 CF_DD15
7 CF_DCS0# 32 CF_DCS1#
8 A10(GND) 33 VS1#
9 OE#(GND) 34 CF_DIOR#
10 A9(GND) [CF_SATA_RXP] 35 CF_DIOW#
11 A8(GND) [CF_SATA_RXN] 36 WE#(VCC3)
12 A7(GND) 37 CF_IRQ#
13 VCC 38 VCC
14 A6(GND) 39 CSEL#(GND)
15 A5(GND) [CF_SATA_TXN] 40 VS2#
16 A4(GND) [CF_SATA_TXP] 41 CF_RESET#
17 A3(GND) 42 CF_IORDY
18 CF_A2 43 CF_DMARQ
19 CF_A1 44 CF_DDACK#
20 CF_A0 45 CF_ACT#
21 CF_DD0 46 CF_DIAG
22 CF_DD1 47 CF_DD8
23 CF_DD2 48 CF_DD9
24 WP(NC) 49 CF_DD10
25 CF_CD2# 50 GND
Fan Connector (FAN1)
Hardware/Software Reset Selection Jumper (JP2):
This jumper can be used to select the mode of the reset
button. The hardware reset mode will reset the system.
The software reset mode is for resetting the software to
its default value.
3
2
1
FAN1
50 26
25 1
Pin No. Pin Name
1 Ground
2 +12V
3 FAN Status
Pin No. Pin Name
1-2 SW Reset
2-3 (Default) HW Reset
3 2 1

17
Board Layout
Chapter 3
Embedded and Industrial Computing
The LEK-IOA4 board
DC_IN CONNECTOR (CN1): A Phoenix connector for
external power supply.
RS-232 Serial Port (COM3 and COM4) without
hardware auto flow control: It is a RS-232/422/485 port
through the D-SUB9 connector.
Dual USB Port Connector #0 and #1 (USB1):
Pin No. Pin Name
1 DC_GND
2 DC_IN
2 1
6789
12345
Pin No. Pin Name
RS-232 RS-422 RS-485
1 DCD TXD- DATA-
2 RxD TXD+ DATA+
3 TxD RxD+
4 DTR RxD-
5 GND Signal Ground
6 DSR
7 RTS
8 CTS
9 RI
1 2 3 4
5 6 7 8
Pin No. Pin Name
1 USB power
2 USB2_DAT-
3 USB2_DAT+
4 Signal Ground
5 USB Power
6 USB3_DAT-
7 USB3_DAT+
8 Signal Ground

18
Hardware Setup
Chapter 4
Embedded and Industrial Computing
Uninstalling the heat sink by unscrewing
the screws from the side of the chassis
Chapter 4:
Hardware Setup
Preparing the Hardware Installation
To access some components and perform certain service
procedures, you must perform the following procedures
first.
WARNING: To reduce the risk of personal injury,
electric shock, or damage to the equipment,
remove the power cord to remove power from the
server. The front panel Power On/Standby button
does not completely shut off system power.
Portions of the power supply and some internal
circuitry remain active until AC power is removed.
Unpower the LEC-2250 and remove the power cord.1.
Unscrew the 4 rubber feet from the bottom cover of2.
the LEC-2250 System.
Open the cover.3.
Installing the System Memory
The motherboard supports DDR3 memory to meet the
higher bandwidth requirement of the latest operating
system and Internet applications. It comes with one
double data rate type three (DDR3) Small Outline Dual
Inline Memory Modules (SO-DIMM) socket.
Note:
The motherboards can support up to 4 GB1.
memory capacity in maximum.
The CF has to be installed first (if it is needed)2.
before you install the RAM due to space
contention.
You will need to take off the heat sink first to3.
access the SO-DIMM slot.
Installing the SO-DIMM

19
Hardware Setup
Chapter 4
Embedded and Industrial Computing
Installing the CompactFlash Card
LEC-2250 provides one CompactFlash slot. Follow the
procedures bellow for installing a CompactFlash card.
Align CompactFlash card and the card slot with the1.
arrow pointing toward the connector.
Push the card to insert into the connector.2.
Note:
The motherboards can support up to 4 GB1.
memory capacity in maximum.
The CF has to be installed first (if it is needed)2.
before you install the RAM due to space
contention.
Installing the 3G SIM Card
Unlock the SIM card reader by sliding it outward and1.
flip it up diagonally.
Align the cut-corner of the SIM card with the SIM card2.
reader. Make sure that the ICs will be in contact with
the bottom of the reader.
Insert the3. SIM card into the reader diagonally. Close
and lock the reader. You should feel a click when the
SIM card is locked securely in the reader.
Installing the Wireless 3G Module
Align the wireless module’s cutout with the Mini-PCIe1.
slot notch.
Insert the wireless module into the connector2.
diagonally.
Fasten the wireless module to the board with the3.
screws (Use the Mini-PCIe module screws contained
within the package).
Installing the Wi-Fi Module
Follow the same steps as the Wireless 3G Module
Installation.
1
2
Installing the Hard Disk
The system can accommodate one Serial-ATA disks. Follow
these steps to install a hard disk into the LEC-2250:
Unscrew the 4 rubber feet from the bottom cover of1.
the LEC-2250 System.
Place hard disk on the top cover of the system and2.
align the holes of the hard disk with the mounting
holes of the top cover.
Secure the hard disk with 4 mounting screws from the3.
outside of cover.
Connect the Serial-ATA power and data cables to the4.
hard disk’s connectors.
Plug the Serial-ATA cables (power and data) to the5.
Serial-ATA Connectors on the main board.