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The DA-662A RISC-based, ready-to-run embedded computers are designed for industrial data acquisition applications. The computers have 8 to 16 RS-232/422/485 serial ports, 4 Ethernet ports, and 2 USB 2.0 ports, all based on the MoxaMacro communication processor. In addition, the DA-662A-I-8/16-LX’s serial ports come with high level interference protection. The housing is a standard 1U, 19-inch wide rack-mounted rugged enclosure. The robust, rack-mountable mechanism design provides the hardened protection needed for industrial environment applications, and makes it easy for users to install the DA-662A computers on a standard 19-inch rack. The DA-662A computers are ideal for applications that require a distributed embedded technology, such as SCADA systems, plant floor automation, and power electricity monitoring applications.
Hardware Specifications
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• Computer
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CPU
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MoxaMacro 500 MHz
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OS
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Embedded Linux (pre-installed)
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DRAM
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128 MB onboard
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Flash
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32 MB onboard
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• Ethernet Interface
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LAN
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4 auto-sensing 10/100 Mbps ports (RJ45)
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Magnetic Isolation Protection
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1.5 kV built-in
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• Serial Interface
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Serial Standards
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8 to 16 RS-232/422/485 ports, software selectable (8-pin RJ45)
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ESD Protection
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8 kV contact, 15 kV Air ESD protection for all signals
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Surge Protection
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2 kV line-to-line and 4 kV line-to-ground surge protection, 8/20 μs waveform (DA-662A-I-8/16-LX only)
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Insulation
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500 V (DA-662A-I-8/16-LX only)
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Isolation
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2 kV digital isolation (DA-662A-I-8/16-LX only)
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Termination Resistor
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120 ohm, jumper selectable
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Console Port
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RS-232 (all signals), RJ45 connector
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• Serial Communication Parameters
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Data Bits
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5, 6, 7, 8
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Stop Bits
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1, 1.5, 2
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Parity
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None, Even, Odd, Space, Mark
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Flow Control
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RTS/CTS, XON/XOFF, ADDC® (automatic data direction control) for RS-485
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Baudrate
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50 bps to 921.6 Kbps (supports non-standard baudrates; see user’s manual for details)
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• Serial Signals
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RS-232
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TxD, RxD, DTR, DSR, RTS, CTS, DCD, GND(DA-662A-I-8/16-LX only: TxD, RxD, RTS, CTS, GND)
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RS-422
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TxD+, TxD-, RxD+, RxD-, GND
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RS-485-4w
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TxD+, TxD-, RxD+, RxD-, GND
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RS-485-2w
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Data+, Data-, GND
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• LEDs
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System
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OS Ready
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LAN
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10/100M x 4
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Serial
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TxD, RxD (16 of each)
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• Mini Screen with Push Buttons
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LCD Panel
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Liquid Crystal Display on the case, 2 x 16 text mode
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Push Buttons
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Four membrane buttons for convenient on-site configuration
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• Physical Characteristics
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Housing
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SECC sheet metal (1 mm)
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Weight
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4.3 kg
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Dimensions
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Without ears: 440 x 45 x 237 mm (17.32 x 1.77 x 9.33 in)
With ears: 480 x 45 x 237 mm (18.90 x 1.77 x 9.33 in)
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Mounting
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Standard 19-inch rackmount
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• Environmental Limits
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Operating Temperature
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-10 to 60°C (14 to 140°F)
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Storage Temperature
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-20 to 80°C (-4 to 176°F)
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Ambient Relative Humidity
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5 to 95% (non-condensing)
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Anti-Vibration
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1 g @ IEC-68-2-6, sine wave (resonance search), 5-500 Hz, 1 Oct/min, 1 Cycle, 13 mins 17 sec per axis
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• Power Requirements
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Input Voltage
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100 to 240 VAC auto ranging(47 to 63 Hz for AC input)
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Power Consumption
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20 W
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• Standards and Certifications
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Safety
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UL 60950-1
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EMC
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EN 55022/24
CISPR 22, FCC Part 15B Class A IEC 61000-4-2 ESD: Contact 8 kV; Air 15 kV IEC 61000-4-3 RS: 3 V/m (80 MHz to 1 GHz) IEC 61000-4-4 EFT: Power 1 kV; Signal 0.5 kV IEC 61000-4-5 Surge: Power 2 kV; Signal 4 kV IEC 61000-4-6 CS: 3 V IEC 61000-4
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Green Product
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RoHS, CRoHS, WEEE
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• Reliability
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Alert Tools
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Built-in buzzer and RTC (real-time clock)
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Automatic Reboot Trigger
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Built-in WDT (watchdog timer)
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MTBF (mean time between failures)
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125,733 hrs
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• Warranty
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Warranty Period
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5 years
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Details
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See www.moxa.com/warranty
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Software Specifications
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• Linux
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OS
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Linux 2.6.38.8
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File System
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JFFS2 (on-board flash)
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Internet Protocol Suite
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TCP, UDP, IPv4, SNMPv1, ICMP, ARP, HTTP, CHAP, PAP, SSH 1.0/2.0, SSL, DHCP, NTP, NFS, Telnet, FTP, TFTP, PPP, PPPoE, SNMP v1/v2, SSL, OpenVPN
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Internet Security
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iptables firewall
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Web Server (Apache)
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Allows you to create and manage web sites; supports PHP and XML
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Terminal Server (SSH)
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Provides secure encrypted communications between two un-trusted hosts over an insecure network
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Dial-up Networking
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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 (
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File Server
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Enables remote clients to access files and other resources over the network
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Watchdog
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Features a hardware function to trigger system reset in a user specified time interval (Moxa API provided)
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Application Development Software
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• Moxa API Library (Watchdog timer, LCM, keypad, Moxa serial I/O control)
• GNU C/C++ cross-compiler • GNU C library
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Features
- MoxaMacro 500 MHz processor
- 128 MB RAM onboard, 32 MB flash
- 8 to 16 software-selectable RS-232/422/485 serial ports
- 8 to 16 jumper-configurable 1/150 kΩ pull low/high and 120 ohmtermination resistors
- 15 kV ESD protection for all serial signals
- Quad 10/100 Mbps Ethernet ports
- USB and CF slots for storage expansion supported
- Standard 19-inch rackmount installation, 1U height
- Wide range of power input voltages from 100 to 240 VAC
- LCM display and keypad for HMI
- Ready-to-Run Linux OS platform
- Robust, fanless design
- Isolated serial port protection models available
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