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DataSheet

RISC-based embedded Linux computers with WLAN, LAN, and 2 serial ports

The W321 is an embedded Linux computer that features 2 software selectable RS-232/422/485 ports, and support the IEEE 802.1a/b/g standards for WLAN connections. In addition, the computer has 1 Ethernet port, and comes with an SD socket for storage expansion. The W321's Linux OS runs on the MOXA ART 32-bit ARM9 processor, and provides a powerful and reliable platform for harsh, industrial environments. You will find these computers ideal for a variety of machine-to-machine applications, including data acquisition, protocol conversion, and remote device control and monitoring.

Features and Benefits

MOXA ART ARM9 32-bit 192 MHz processor running Linux 2.6
32 MB RAM, and 16 MB flash disk on board
802.11a/b/g WLAN with repeater function
WEP, WPA, and WPA2 encryption
10/100 Mbps Ethernet for network redundancy
SD socket for storage expansion
DIN-rail or wall-mount installation
Designed to withstand 5 g’s of continuous vibration and 50-g shocks
Robust, fan-less design

Hardware Specifications

Computer
CPU	MOXA ART ARM9 32-bit 192 MHz
OS (pre-installed)	Embedded Linux with MMU support
DRAM	32 MB
Flash	16 MB
Storage Expansion	SD socket
LAN Interface
Ethernet	Auto-sensing 10/100 Mbps, RJ45 connector
Magnetic Isolation Protection	1.5 KV built-in
WLAN Interface
Standard Compliance	802.11a/b/g
Tx Power	(typical) 5.15-5.35 GHz: 14 dBm @ 6 Mbps, 14 dBm @ 54 Mbps 5.725-5.825 GHz: 14 dBm @ 6 Mbps, 13 dBm @ 54 Mbps 2.412-2.483 GHz (802.11g): 17 dBm @ 6 Mbps, 15 dBm @ 54 Mbps 2.412-2.472 GHz (802.11b): 18 dBm @ 1-11 Mbps
RX Sensitivity	(typical) 5.15-5.35 GHz: 6 Mbps @ -82 dBm, 54 Mbps @ -67 dBm 5.47-5.725 GHz: 6 Mbps @ -82 dBm, 54 Mbps @ -67 dBm 5.725-5.825 GHz: 6 Mbps @ -80 dBm, 54 Mbps @ -69 dBm 2.412-2.472 GHz (802.11g): 6 Mbps @ -84 dBm, 54 Mbps @ -69 dBm 2.412-2.472 GHz (802.11b): 11 Mbps @ -82 dBm, 1 Mbps @-90 dBm
Radio Frequency Type	DSSS, CCK, OFDM
Radio Frequency Band	802.11a: 5.15-5.25 GHz, 5.25-5.35 GHz, 5.725-5.825 GHz 802.11b/g: U.S., Europe, Japan products, covering 2.4-2.484 GHz
Media Access Protocol	CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)
Transmission Rate	54 Mbps (max.) with auto fallback (54, 48, 36, 24, 18, 12, 11, 9, 6, 5.5, 2, 1 Mbps) 802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps 802.11b: 1, 2, 5.5, 11 Mbps
Transmission Distance	Up to 100 meters (@ 11 Mbps in open areas)
Wireless Security	WEP: 64-bit/128-bit, WPA, WPA2 data encryption
WLAN Modes	Ad-hoc (802.11b/g), Infrastructure
Antenna	External 2 dbi dipole antenna
Antenna Connector	Reverse SMA
Serial Interface
Serial Standards	RS-232/422/485 (software-selectable)
Number of Ports	2
Connector(s)	DB9 male
Serial Line Protection	15 KV ESD protection for all signals
Console Port	RS-232 interface (TxD, RxD, GND with 4-pin pin header output)
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 (non-standard baudrates supported; 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	Ready
LAN	10M/Link, 100M/Link (on connector)
Serial	TxD, RxD
WLAN	Enable, Signal Strength
Switches and Buttons
Buttons	Reset button for resetting to factory defaults
Physical Characteristics
Enclosure	Aluminum (1 mm)
Dimensions	77 x 111 x 26 mm (3.03 x 4.37 x 1.02 in)
Mounting	DIN-rail (requires optional DK-35A DIN-rail kit), wall
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)
Anti-Vibration	5 g's @ IEC-68-2-6, sine wave, 5-500 Hz, 1 Oct./min, 1 hr/axis
Anti-Shock	50 g's @ IEC-68-2-6, half-sine wave, 30 ms
Power Requirements
Input Voltage	12 to 48 VDC
Power Consumption	400 mA @ 12 VDC, 4.8 watts
Regulatory Approvals
Safety	UL/cUL (UL60950-1), T?V (EN60950-1)
EMC	CE (ETSI EN 301 489-1/-17, ETSI EN 301 893, ETSI EN 300 328, EN50392), FCC Part 15C & Part 15E
Directives	RoHS, CRoHS, WEEE
Reliability
Alert Tools	Built-in buzzer and RTC (real-time clock) with battery backup
Automatic Reboot Trigger	Built-in WDT (watchdog timer) supporting 1-255 level time interval system reset, software programmable
Warranty
Warranty Period	5 years

Software Specifications

Linux
Kernel Version	2.6.9
Boot Loader	Redboot
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 Linux Tool Chain: Gcc, Glibc, GDB BINEncryptor: Encryption tool for binary files; based on Moxa Intellectual Protection Technology (Patented)
Device Drivers	UART, RTC, Buzzer, SD Card

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