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The DA-661 embedded computers come with 16 software-selectable RS-232/422/485 serial ports, making them suitable for a variety of industrial applications, and two 10/100 Mbps Ethernet ports are included for network redundancy. In addition, the DA-661 has a PCMCIA socket to provide 802.11 b/g wireless LAN card expansion, and the CompactFlash and USB sockets make it easy to add more memory. This combination of features gives users an ideal, robust, and reliable solution for harsh industrial environments.

Features and Benefits

Intel XScale IXP-425 533 MHz processor
128 MB RAM on-board, 32 MB flash
16 software-selectable RS-232/422/485 serial ports
Dual 10/100 Mbps Ethernet for network redundancy
15 KV ESD protection for all serial signals
Supports PCMCIA CardBus for WLAN 802.11b/g wireless network
CompactFlash and USB slots for storage expansion
Standard 19-inch rackmount, 1U height installation
Wide range of input voltages from 100 to 240 V AC/DC
LCM display and keypad for HMI
Ready-to-run Linux or Windows CE 5.0 platform
Robust, fanless design

Specifications Hardware Specifications

• Computer
CPU	Intel XScale IXP-425 533 MHz
OS (pre-installed)	Embedded Linux or Windows CE 5.0
DRAM	128 MB onboard (256 MB for ODM)
Flash	32 MB onboard
PCMCIA	Cardbus card and 16-bit PCMCIA 2.1/JEIDA 4.2 card
Storage Expansion	Full function CompactFlash x 1
USB	USB 2.0 hosts x 2
• LAN Interface
Ethernet	10/100 Mbps x 2, RJ45 connectors
Magnetic Isolation Protection	1.5 KV built-in
• Serial Interface
Serial Standards	RS-232/422/485, software-selectable
Number of Ports	16
Connectors	8-pin RJ45
Console Port	RS-232 x 1, RJ45 connector, supports PPP
ESD Protection	15 KV for all signals
• 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-422	TxD+, TxD-, RxD+, RxD-, GND
RS-485-4w	TxD+, TxD-, RxD+, RxD-, GND
RS-485-2w	Data+, Data-, GND
• LEDs
System	OS Ready x 1
LAN	10M/100M x 2
Serial	TxD, RxD (16 of each)
• Mini Screen with Push Buttons
LCD Panel	Liquid Crystal Display on the case, 2 x 16 text mode
Push Buttons	Four membrane buttons for convenient on-site configuration
• Physical Characteristics
Enclosure	SECC sheet metal (1 mm)
Dimensions	Without ears: 440 x 45 x 198 mm (17.32 x 1.77 x 7.80 in) With ears: 480 x 45 x 198 mm (18.90 x 1.77 x 7.80 in)
Mounting	Standard 19-inch rackmount
• Environmental Limits
Operating Temperature	-10 to 60°C (14 to 140°F)
Operating Humidity	5 to 95% RH
Storage Temperature	-20 to 80°C (-4 to 176°F)
• Power Requirements
Input Voltage	100 to 240 VAC/VDC auto ranging (47 to 63 Hz for AC input)
Power Consumption	20 watts
• Regulatory Approvals
Safety	UL/cUL (UL60950-1, CSA C22.2 No. 60950-1-03), TÜV (EN60950-1)
EMC	CE (EN55022 Class A, EN61000-3-2 Class A, EN61000-3-3, EN55024), FCC (Part 15 Subpart B, CISPR 22 Class A)
• Reliability
Alert Tools	Built-in buzzer and RTC (real-time clock)
Automatic Reboot Trigger	Built-in WDT (watchdog timer)
• Warranty
Warranty Period	5 years

Software Specifications

• Linux
Kernel Version	2.6.10
Protocol Stack	TCP, UDP, IPv4, SNMP V1, ICMP, IGMP, ARP, HTTP, CHAP, PAP, SSH 1.0/2.0, SSL, DHCP, NTP, NFS, SMTP, Telnet, FTP, PPP, PPPoE
File System	JFFS2 (on-board flash)
System Utilities	bash, busybox, tinylogin, telnet, ftp, scp
Supported Services and Daemons	telnetd: Telnet Server daemon ftpd: FTP server daemon sshd: Secure shell server Apache: Web server daemon, supporting PHP and XML OpenVPN: Virtual private network service manager iptables: Firewall service manager pppd: dial in/out over serial port daemon & PPPoE snmpd: snmpd agent daemon inetd: TCP server manager program
Application Development Environment	Moxa Linux API Library for device control Linux Tool Chain: Gcc, Glibc, GDB
• Windows Embedded CE 5.0
Protocol Stack	TCP, UDP, IPv4, SNMP, ICMP, IGMP, ARP, HTTP, CHAP, PAP, SSL, DHCP, SNTP, SMTP, Telnet, FTP, PPP
File System	FAT (on-board flash)
System Utilities	Windows command shell, telnet, ftp, web-based administration manager
Supporting Services and Daemons	Telnet Server: Allows remote administration through a standard telnet client. FTP Server: Used for transferring files to and from remote computer systems over a network. Web Server (httpd): WinCE IIS, including ASP, ISAPI Secure Socket Layer support, SSL 2, SSL 3, and Transport Layer Security (TLS/SSL 3.1) public key-based protocols, and Web Administration ISAPI Extensions. Dial-up Networking Service: RAS client API and PPP, supporting Extensible Authentication Protocol (EAP) and RAS scripting.
Application Development Environment	Moxa WinCE 5.0 SDK C Libraries and Run-times Component Services (COM and DCOM) Microsoft Foundation Classes (MFC) Microsoft® .NET Compact Framework 2.0 SP2 XML, including DOM, XQL, XPATH, XSLT, SAX2 SOAP Toolkit Winsock 2.2

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