Thank you for choosing the LEC-3100. The LEC-3100
is an embedded automation computer that features
fanless rackmount design targeted for high demand
serial port connectivity in an industrial environment or
transportation control system.
The LEC-3100’s CPU core consists of an Intel 945GSE with
ICH7M chipset mounted on its bottom side, an approach
that improves thermal management and increases the
space for I/O functions and connectors. This innovative
design has enabled the LEC-3100 to integrate additional
COM ports (a total of 10 RS232/RS485/RS422 configurable
ports and all are capable of automatic flow control by
hardware and isolation) and 5 Ethernet controllers, 4
digital inputs and 4 digital outputs, 4 USB2.0 ports, one
DVI display, and a PCI-104 expansion stack location.
Please refer to the chart below for a detailed description
of the system’s specifications.
System Specification
FEATURE
Platform
Memory
Storage
Networking
Video
Audio
I/O
Hardware
Monitor
OS Supported
Environmental Parameters
DESCRIPTIONLEC-3100
Form Factor1U Rackmount
ProcessorIntel Atom N270
ChipsetIntel 945GSE + ICH7M
BIOSAMIBIOS with 8Mbit FWH
Max. FSB533MHz
Memory IC On BoardNo
Memory Socket
Max Memory2GB (1 x 2GB Module)
Compact Flash1 x CF Socket Type I/II
SATA1 x 2.5” SATA HDD
IDE2 x 22pin IDE header
Controller (Interface)
ControllerOnboard 945GSE
CodecALC888 HD Codec
COM Ports
USB 2.04 (3 x External, 1 x Internal)
DVI1 (1600 x 1200)
LAN
Audio
DIO
ExpansionPCI/104
Controller
Watchdog timerYes (1~255 level)
Operating Temperature
(With Industrial Components:
CF, Memory, SSD, HDD)
Operating Temperature
(With Commercial Components)
1 x SODIMM (up to 2GB per
slot)
Intel 82574L x 4,
Intel 82562GZ x1
2 x DB9
8 x Phoenix Contact
All ports are isolated and can
use RS-232/422/485 control
signals Corresponding LEDs
on front panel
1x RJ45 FE and 4 x RJ45 GbE,
LEDs on front panel
Line in, Line out, Mic In
(optional)
4 in, 4 out, LEDs on front
panel
Winbond W83627 UHG integrated hardware monitor
Embedded Windows XP/Linux
kernel 2.4.16 or above/WindowsXP 32 bit
-20°~50°C / 14°~131°F
-5°C~45°C / 23°~113°F
Embedded and Industrial Computing
Dimensions
Extended Operating
Temperature Tested
W x H x D271 x 44.5 x 440 mm
Weight3Kg
N/A
1
Chapter 1
Introduction
Power
Compliance
DC Power Input9V ~ 36V DC in
AC Power Input
110/240V AC in, 10% Tolerence
CE, FCC, RoHS
Package Contents
Your package contains the following items:
LEC-3100 Embedded System•
Rack Mounting Kit•
Drivers and User’s Manual CD•
Embedded and Industrial Computing
2
Chapter 1
Front Panel Features
F1F5F2F3F4F6F7F8
F1 CTR
This is a software reset switch which could be programmed to reset your application to its default settings.
F2 Reset Switch
It is a hardware reset switch. Use a pointed object to press it 5 seconds then release it to reset the system without
turning off the power.
F3 USB 2.0 type A ports
Introduction
It connects to any USB devices, for example, a flash drive.
F5 Run/Power/HDD LED
RunA programmable dual green/amber LED which can be used for indicating system
status.
PowerGreen indicates Power-on, where as Off indicates Power-off status.
P1: Status for the built-in power supply unit.
P2: Status for the redundant 1x2-pin Phoenix Contact
Hard DiskYellow indicates that HDD is present, whereas Off indicates HDD is not present.
F5 PIO Status LED
The set of 4 LEDs can be programmed to display the status of any hardware components or system operating
status. Refer to the Driver and Manual CD for a sample code to implement this feature.
F6 LAN Status LED
ACT LED: If the LED is on, it indicates that the port is linked.
Link LED: If it blinks, it indicates there is traffic.
F7 Serial Port Status LED for COM1 through COM10
The LEDs on the upper row show the status of transmission activities, whereas those on the bottom row show
the status of receiving activities.
F8 These LEDs indicate the Digital I/O operating status.
The LEDs on the upper row show the connection status of input pins, whereas those on the bottom row show
the connection status of output pins.
Embedded and Industrial Computing
3
Chapter 1
Rear Panel Features
R1
R2
R4
5 4 3 2 1
Pin 1
COM8
Pin 1
COM7
R5
Pin 1
COM4
Pin 1
COM3
COM2
COM1
Introduction
LAN 2
LAN 4
R3
10 9 8 7 6
Pin 1
COM9COM10
Pin 1
COM6
Pin 1
COM5
Pin 1
R6
R7R8
LAN 1
LAN 3LAN 5
R9
R1 Power Switch
The power switch comes with the switch which can be used to turn on/off the power from the power
supply.
R2 Power Socket
The AC inlet comes from the unit’s built-in 150W open frame power.
R3 Redundant Power Supply Socket
A redundant power supply through 1x2-pin Phoenix Contact with 9~36V is provided on the system. The
socket also features reversed wiring protection. Hence, it will not cause any damage to the system by reversed
wiring of ground line and power line.
Pin No.12
12
FunctionDC +DC-
R4 Digital Input/Output port:
The general-purpose input/output (GPIO) peripheral is provided through 10-pin terminal block connector.
Pin 1to 4- Digital Inputs. Pin 6-9-Digital Output.
Pin NO.Pin 1Pin 2Pin 3Pin 4Pin 5
Assignment
Assignment
R5 20-pin Phoenix Contact Terminal Block
This terminal block can be connected as 8 Com ports with serial port type of RS-232, RS-422 or RS-485; it
supports dip switch selection among RS-232, RS-422 and 485. The following table lists the pin assignments.
Refer to Chapter 3 Motherboard Information for dip switch adjustment information. Note that Pin 1 starts from right. These connectors are isolated COM ports which will protect system from being damaged due to
power surge or failure of the connected devices.
Port Type
RS-232SOUTRTSSINCTSGround
RS-422TX+TX-RX-RX+Ground
RS-485TX+TX-RX-RX+Ground
RS-485 (2 wires) D+D-Ground
Embedded and Industrial Computing
Input 0Input 1Input 2Input 3Ground
Pin NO.Pin 6Pin 7Pin 8Pin 9Pin 10
Output 0 Output 1 Output 2 Output 3 Ground
Pin NO.
Pin 1Pin 2Pin 3Pin 4Pin 5
(GND)
(GND)
(GND)
4
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