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DA-681

x86-based rackmount fanless embedded computer with 4 isolated RS-232 and 8 isolated RS-485 ports, 6 LANs, VGA, CompactFlash, USB

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Evaluation units available for online purchase
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Features and Benefits

  • Intel Celeron M 1 GHz processor with 400 MHz FSB
  • 1 x 200-pin DDR2 SODIMM socket, supporting DDR2 400 up to 1 GB (512 MB  built-in)
  • Six 10/100 Mbps Ethernet ports  
  • 1 CompactFlash socket, 1 IDE and serial ATA-150 connectors for storage expansion
  • 2 USB 2.0 ports for high speed peripherals
  • 4 RS-232 and 8 RS-485 ports with 2 KV isolation protection
  • Serial port speed from 50 bps to 921.6 Kbps, supporting nonstandard baudrates
  • Embedded Linux, WinCE 6.0, or WinXPe platform
  • Dual 100/240 VAC/VDC power input (Single power and dual power models available)
  • Fanless Design 

 

Overview

The DA-681 computer is based on the Intel x86 processor and supports VGA, 6 Ethernet ports, 4 RS-232 and 8 RS-485 serial ports with isolation, CompactFlash, and USB. The DA-681 comes in a standard 19-inch, 1U high form factor, making it an ideal platform for industrial applications.


With its robust design, the DA-681 is suitable for industrial automation applications that require standard 19-inch rackmount solutions, such as power automation, transportation, and oil and gas. Another plusis that the serial ports come with 2 KV digital galvanic isolation protection to guarantee communication reliability in harsh industrial environments.


The DA-681 runs Linux, WinCE 6.0, or Windows XP Embedded (pre-installed), providing a friendly environment for developing sophisticated application software. The great software support that Moxa provides makes the programmer's job easier, and helps programmers develop bug-free code quickly and at a lower cost.

Hardware Specifications
• Computer
CPU Intel Celeron M 1 GHz processor
OS (pre-installed) WinCE 6.0, Windows XP Embedded SP3, Linux 2.6
System Chipset Intel 910GMLE + ICH6M chipset
BIOS 4 mega-bit Flash BIOS, PCI Plug & Play, ACPI function support
FSB 400 MHz
System Memory 1 x 200-pin DDR2 SODIMM socket supporting DDR2 400; up to 1 GB max. (512 MB built-in)
Expansion Bus PCI/104 onboard (DPP-T models only)
USB USB 2.0 compliant hosts x 2, Type A connector, supports system boot up
• Storage
Built-in 1 GB (2 GB for DA-681-XPE) industrial DOM onboard to store OS via IDE interface
Storage Expansion CompactFlash socket
HDD Support SATA connector for HDD expansion
• Other Peripherals
KB/MS 1 PS/2 interface, supports standard PS/2 keyboard and PS/2 mouse
• Display
Graphics Controller Integrated graphics with built-in Intel 910GME, and built-in Intel extreme Graphics 2 technology
Display Memory Dynamic video memory (shares up to 32 MB of system memory)
Display Interface CRT Interface for VGA output (DB15 female connector)
Resolution CRT display mode with pixel resolution up to 2048 x 1536 at 75 Hz
• Ethernet Interface
LAN 6 auto-sensing 10/100 Mbps ports (RJ45)
Magnetic Isolation Protection 1.5 KV built-in
• Serial Interface
Serial Standards • 4 RS-232 ports (DB9 male) 
• 8 RS-485 ports (terminal block)
ESD Protection 15 KV for all signals
Isolation

2 KV digital galvanic isolation
Note: DA-681-I-SP-LX with isolated signal pin only
• Serial Communication Parameters
Data Bits 5, 6, 7, 8
Stop Bits 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS, XON/XOFF, ADDC® (automatic data direction control) for RS-485
Baudrate 50 bps to 921.6 Kbps (supports non-standard baudrates; see user's manual for details)
• Serial Signals
RS-232 TxD, RxD, DTR, DSR, RTS, CTS, DCD, GND
RS-485-2w Data+, Data-, GND
• LEDs
System Power x 1, Storage x 1
LAN 10M x 6, 100M x 6
Serial RS-232: 4 x Tx, 4 x Rx 
RS-485: 8 x Tx, 8 x Rx
Power Failure LED x 2 (dual power models)
• Physical Characteristics
Housing SECC sheet metal (1 mm)
Weight 4.5 kg
Dimensions 440 x 315 x 45 mm (17.32 x 12.40 x 1.77 in), 19 inch 1U height
Mounting Standard 19-inch rackmount
• Environmental Limits
Operating Temperature SP and DP models: -10 to 60°C (14 to 140°F) 
DPP-T models: -40 to 75°C (-40 to 167°F)
Storage Temperature SP and DP models: -20 to 80°C (4 to 176°F) 
DPP-T models: -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Anti-vibration 7 mm (2-9 Hz), 20 m/s/s (9-200 Hz), 15 m/s/s (200-500 Hz) @ IEC-61850-3, IEC 60870-2-2/Cm/(3M6)/(4M6), sine wave, 2-500 Hz, 1 Oct/min, 10 cycles, 2 hrs 40 mins per axis
Anti-shock 300 m/s2 @ IEC-61850-3, IEC 60870-2-2/Cm/(3M6)/(4M6), half sine wave, 11 ms
• Power Requirements
Input Voltage Single or dual inputs, 100 to 240 VAC/VDC auto-ranging, 47 to 63 Hz, terminal block
Power Consumption 26 W
• Standards and Certifications
Safety UL 60950-1, CSA C22.2 No. 60950-1-03, EN 60950-1, CCC (GB4943, GB9254, GB17625.1)
EMC EN 55022, EN 61000-3-2, EN 61000-3-3, EN 55024, FCC Part 15 Subpart B Class A
Power Automation IEC 61850-3 (DPP-T models only)
Green Product RoHS, CRoHS, WEEE
• Reliability
Alert Tools Built-in buzzer and RTC (real-time clock) with battery lithium backup
Automatic Reboot Trigger Built-in WDT (watchdog timer) supporting 1-255 level time interval system reset, software programmable
MTBF (mean time between failures) 100,847 hrs
• Warranty
Warranty Period 3 years
Details See http://www.moxa.com/support/warranty.htm
Software Specifications
• Linux
OS Linux 2.6.18, Debian Etch 4.0
File System EXT2
Internet Protocol Suite TCP, UDP, IPv4, SNMPv1/v2c/v3, ICMP, ARP, HTTP, CHAP, PAP, SSH 1.0/2.0, SSL, DHCP, NTP, NFS, Telnet, FTP, TFTP, PPP, PPPoE
Internet Security OpenVPN, iptables firewall
Web Server (Apache) Allows you to create and manage web sites; supports PHP and XML
Terminal Server (SSH) Provides secure encrypted communications between two un-trusted hosts over an insecure network
Dial-up Networking PPP Daemon for Linux that allows Unix machines to connect to the Internet through dialup lines, using the PPP protocol, as a PPP server or client. Works with 'chat', 'dip', and 'diald', among (many) others. Supports IP, TCP, UDP, and (for Linux) IPX (Novell).
File Server Enables remote clients to access files and other resources over the network
Watchdog Features a hardware function to trigger system reset in a user specified time interval (Moxa API provided)
Application Development Software • Moxa API Library (Watchdog timer, Moxa serial I/O control) 
• GNU C/C++ cross-compiler 
• GNU C library 
• Perl
• Windows Embedded CE 6.0
OS Windows Embedded CE 6.0
File System FAT (for on-board flash)
Internet Protocol Suite TCP, UDP, IPv4, SNMPv2, ICMP, IGMP, ARP, HTTP, CHAP, PAP, SSL, DHCP, SNTP, SMTP, Telnet, FTP, PPP
Web Server (WinCE IIS) Supports ASP, ISAPI Secure Socket Layer (SSL 2/3) and Transport Layer Security (TLS/SSL 3.1) public key-based protocols, and Web Administration ISAPI Extensions
Dial-up Networking Supports RAS client API and PPP, Extensible Authentication Protocol (EAP), and RAS scripting
File Server Enables remote clients to access files and other resources over the network
Watchdog Features a hardware function to trigger system reset in a user specified time interval. (Moxa API provided)
Application Development Software • Moxa WinCE 6.0 SDK 
• Moxa API Library
• C Libraries and Run-times 
• Component Services (COM and DCOM) 
• Microsoft® .NET Compact Framework 2.0 
• XML, including DOM, XQL, XPATH, XSLT, SAX, SAX2 
• SOAP Toolkit Client 
• Winsock 2.2
• Windows XP Embedded
OS Windows XP Embedded
File System NTFS
Internet Protocol Suite DHCP, DNS, FTP, HTTP, SNTP, NTP, Telnet, SMTP, SNMPv2, TCP, UDP, IPv4, ICMP, IGMP, IPsec, TAPI, ICS, PPP, CHAP, EAP, PPPoE, PPTP, NetBIOS
Web Server (IIS) Allows users to create and manage websites
Remote Registry Service Enables remote users to modify registry settings on this computer
Watchdog Features a hardware function to trigger system reset in a user specified time interval (Moxa API provided)
Enhanced Writer Filter Redirect disk write operations to volatile (RAM) or non-volatile (disk) storage
Application Development Software • Moxa API Library
• Microsoft .Net Framework 2.0 with SP 2
• Active Directory Service Interface (ADSI) Core
• Active Template Library (ATL), ASP.NET 2.0
• Common Control Libraries
• Common File Dialogs
• Direct3D, DirectPlay, DirectShow, and Direct show filters
• Mapi32 Libraries
• Message Queuing (MSMQ) Core
• Microsoft Visual C++ Run Time Libraries
• Power Management dynamic-link library
• RPC
• Windows API, Script Engines, and WMI

To request a quote, indicate which items you are interested in below and click "Get a Quote".

Available Models

  Model No. Description
DA-681-I-SP-CE x86 rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, Single Power, WinCE 6.0
DA-681-I-DPP-T-LX IEC 61850-3 x86 ready-to-run rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, dual power, Linux 2.6, -40 to 75°C operating temperature
DA-681-I-DPP-T-CE IEC 61850-3 x86 ready-to-run rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, dual power, WinCE 6.0, -40 to 75°C operating temperature
DA-681-I-DPP-T-XPE IEC 61850-3 x86 ready-to-run rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, dual power, WinXPe SP3, -40 to 75°C operating temperature
DA-681-I-SP-XPE x86 rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, Single Power, WinXPe SP3
DA-681-I-SP-LX x86 rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, Single Power, Linux 2.6
DA-681-I-DP-CE x86 rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, Dual Power, WinCE 6.0
DA-681-I-DP-XPE x86 rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, Dual Power, WinXPe SP3
DA-681-I-DP-LX x86 rackmount computer with VGA, 6 Ethernet ports, 4 RS-232 ports, 8 RS-485 ports, CompactFlash, SATA, USB, Dual Power, Linux 2.6

Optional Accessories

RCore Software
  Model No. Description
Mass Configuration Tool A time-saving tool that helps users simultaneously deploy many tasks to Moxa’s embedded computers (available free)
MDM API Moxa Device Manager Application Program Interface (available free)


     
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