Industrial Networking Solutions
EM-1240 Series
RISC-based ready-to-run embedded core module with 4 serial ports,
dual LANs, SD, µClinux
› MOXA ART ARM9 32-bit 192 MHz processor
› 16 MB RAM, 8 MB flash on-board
› 4 software-selectable RS-232/422/485 serial ports
› Dual 10/100 Mbps Ethernet for network redundancy
› RS-232 serial console port supporting PPP
› Ready-to-run µClinux Kernel 2.6 platform
› SD signals supported for external SD socket connection
› Built-in RTC, buzzer
› 10 GPIOs reserved for system integration
› Full-function development kit for quick evaluation and application
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development
Overview
The EM-1240 embedded module features 4 RS-232/422/485 serial
ports, dual Ethernet ports and an SD socket for external storage
expansion. The module has a compact design that can be easily
integrated with related industrial applications, such as gas stations,
vending machines, and ticketing machines, and offers a powerful serial
communication capability for better system integration. Programmers
will find that the pre-installed, ready-to-run µClinux platform and
the full-function development kit make it easy to develop software
and build a reliable communication base for industrial automation
applications.
Appearance
RISC-based Computers > EM-1240 Series
The certification logos shown here apply to some or all of the products in this
section. Please see the Specifications section or Moxa’s website for details.
Embedded Module—Top View
MOXA ART ARM9 32-bit
Communication Processor
Development Kit Appearance
EM-1240
Embedded Module
onboard Intel
NOR Flash 8 MB
Embedded Module—Bottom View
J1
J2
onboard
16 MB RAM
EM-1240-DK
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Embedded Computing Solutions
Hardware Specifications
Computer
LEDs
CPU: MOXA ART ARM9 32-bit 192 MHz processor
System: Ready x 1
OS (pre-installed): Embedded µClinux (kernel 2.6.19)
LAN: 10M/Link x 2, 100M/Link x 2
DRAM: 16 MB onboard (32 MB for ODM)
Serial: TxD, RxD (4 of each)
Flash: 8 MB onboard (16 MB for ODM)
Physical Characteristics
Storage Expansion: SD signals for external Secure Digital (SD)
socket connection
Weight:
EM-1240 Module: 50 g
EM-1240 Development Kit: 200 g
LAN Interface
Dimensions:
EM-1240 Module: 90 x 80 mm (3.54 x 3.15 in)
EM-1240 Development Kit: 177 x 115 mm (6.97 x 4.53 in)
Ethernet: Auto-sensing 10/100 Mbps x 2
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Magnetic Isolation Protection: 1.5 KV built-in
Serial Interface
Module Interface: Two 2 x 28 pin-headers (1.27 x 1.27 mm pitch)
Number of Ports: 4
Environmental Limits
Serial Standards: RS-232/422/485, software-selectable
Console Port: RS-232, all signals, supports PPP
Operating Temperature:
Standard model: -10 to 60°C (14 to 140°F)
Wide temp. model: -40 to 75°C (-40 to 167°F)
Serial Communication Parameters
Operating Humidity: 5 to 95% RH
ESD Protection: 15 KV for all signals
RISC-based Computers > EM-1240 Series
Storage Temperature:
Standard model: -20 to 80°C (-4 to 176°F)
Wide temp. model: -40 to 85°C (-40 to 185°F)
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Power Requirements
Flow Control: RTS/CTS, XON/XOFF, ADDC™ (automatic data
direction control) for RS-485
Input Voltage: External 5 VDC through pin header
Baudrate: 50 bps to 921.6 Kbps (non-standard baudrates supported;
see user’s manual for details)
Serial Signals
Regulatory Approvals
EMC: CE (EN55022 Class A, EN61000-3-2 Class A, EN61000-3-3,
EN55024), FCC (Part 15 Subpart B, CISPR 22 Class A)
RS-232: TxD, RxD, DTR, DSR, RTS, CTS, DCD, GND
Reliability
RS-422: TxD+, TxD-, RxD+, RxD-, GND
Alert Tools: Built-in buzzer and RTC (real-time clock)
RS-485-4w: TxD+, TxD-, RxD+, RxD-, GND
Automatic Reboot Trigger: Built-in WDT (watchdog timer)
RS-485-2w: Data+, Data-, GND
Warranty
Warranty Period: 5 years
Details: See www.moxa.com/warranty
Dimensions
EM-1240 Embedded Module
EM-1240-DK
177 cm
90cm
115 cm
80cm
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Industrial Networking Solutions
H/W Block Diagram
Pin Assignment
DB9 male
1 2 3 4 5
6 7 8 9
H/W Block Diagram
PIN
1
2
3
4
5
6
7
8
RS-232
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RS-422/485-4w
TxD-(A)
TxD+(B)
RxD+(B)
RxD-(A)
GND
–
–
–
RS-485-2w
–
–
Data+(B)
Data-(A)
GND
–
–
–
Ethernet
LAN 1
LAN 2
PHY
PHY
MAC
MAC
Power
Circuit
RTC
16 MB
SDRAM
8 MB
Flash
MOXA ART CPU
32-bit ARM9
192 MHz
Watchdog
SD/GPIO
Function
UART UART UART UART UART
RS-232
Software Specifications
RS-232/422/485
µClinux
Tinylogin: login and user manager utility
Kernel Version: 2.6.19
Telnetd: Telnet server daemon
Protocol Stack: ARP, ICMP, IPV4, TCP, UDP, FTP, Telnet, SNMP V1,
HTTP, CHAP, PAP, DHCP, NTP, NFS V2, SMTP, Telnet, PPP, PPPoE
Telnet: Telnet client daemon
File System: JFFS2, root file system (read only), and user directory
(read/write)
ftpd: FTP server program
Msh: Minix shell command
pppd: Dial in/out over serial port daemon, including PPPoE
(Point-to-Point over Ethernet)
Snmpd: SNMP V1 Agent daemon
Busybox: Linux normal command utility
Inetd: TCP server manager program
ftp: FTP client program
Boa: Web server daemon
ntpdate: Network Time Protocol client utility
Tool Chain:
Arm-elf-gcc: C/C++ PC Cross Compiler
µClibc: POSIX standard C library
RISC-based Computers > EM-1240 Series
Serial Serial Serial Serial Console
Port
Port 1 Port 2 Port 3 Port 4
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Ordering Information
Available Models
Package Checklist (module)
EM-1240-LX: RISC-based embedded core module with 4 serial ports, dual LANs,
SD, µClinux OS (standard operating temperature: -10 to 60°C)
• EM-1240-LX or EM-1240-T-LX
embedded module
• Document and Software CD
• Quick Installation Guide (printed)
• Warranty Card
EM-1240-T-LX: RISC-based embedded core module with 4 serial ports, dual LANs,
SD, µClinux (wide operating temperature: -40 to 75°C)
EM-1240 Development Kit: Includes the EM-1240-DK snap-on testing board with
built-in RJ45 LAN ports and DB9 male serial ports
Package Checklist
(Development Kit)
• EM-1224 embedded module
• EM-1244-DK, the carrier board for the
EM-1224 module
• Universal power adaptor set
• Cross-over Ethernet cable
• DB9 female to terminal block adaptor
• Terminal block (300V, 15A)
• Universal power adaptor set
• Document and Software CD
• Quick Installation Guide (printed)
• Warranty Card
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