Moxa W321-W311 RISC-based Ready-to-Run Wireless Embedded Computer User Manual W311 321 341 Hardware User s Manual v6
Moxa Inc. RISC-based Ready-to-Run Wireless Embedded Computer W311 321 341 Hardware User s Manual v6
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- 1. User Manual
- 2. User Manual Rev
User Manual
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| Document ID | 1085493 |
| Application ID | npvA/WIQny1jOfdP0sn11Q== |
| Document Description | User Manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 398.86kB (4985751 bits) |
| Date Submitted | 2009-03-25 00:00:00 |
| Date Available | 2009-03-30 00:00:00 |
| Creation Date | 2009-03-13 10:39:50 |
| Producing Software | Acrobat Distiller 8.1.0 (Windows) |
| Document Lastmod | 2009-03-25 15:27:31 |
| Document Title | W311/321/341 Hardware User's Manual v6 |
| Document Creator | Acrobat PDFMaker 8.1 for Word |
| Document Author: | Tim Stemple; Bruce chen |
W311/321/341 Hardware User’s Manual Sixth Edition, March 2009 www.moxa.com/product © 2009 Moxa Inc. All rights reserved. Reproduction without permission is prohibited. W311/321/341 Hardware User’s Manual The hardware described in this manual is furnished under a license agreement and may be used only in accordance with the terms of that agreement. Copyright Notice Copyright © 2009 Moxa Inc. All rights reserved. Reproduction without permission is prohibited. Trademarks MOXA is a registered trademark of Moxa Inc. All other trademarks or registered marks in this manual belong to their respective manufacturers. Disclaimer Information in this document is subject to change without notice and does not represent a commitment on the part of Moxa. Moxa provides this document “as is,” without warranty of any kind, either expressed or implied, including, but not limited to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the products and/or the programs described in this manual, at any time. Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for its use, or for any infringements on the rights of third parties that may result from its use. This product might include unintentional technical or typographical errors. Changes are periodically made to the information herein to correct such errors, and these changes are incorporated into new editions of the publication. Technical Support Contact Information www.moxa.com/support Moxa Americas: Toll-free: 1-888-669-2872 Tel: +1-714-528-6777 Fax: +1-714-528-6778 Moxa China (Shanghai office): Toll-free: 800-820-5036 Tel: +86-21-5258-9955 Fax: +86-10-6872-3958 Moxa Europe: Tel: +49-89-3 70 03 99-0 Fax: +49-89-3 70 03 99-99 Moxa Asia-Pacific: Tel: +886-2-8919-1230 Fax: +886-2-8919-1231 Table of Contents Chapter 1 Introduction ..................................................................................................1-1 Overview.................................................................................................................................. 1-2 Package Checklist .................................................................................................................... 1-2 Product Features ...................................................................................................................... 1-3 Product Hardware Specifications............................................................................................. 1-3 Hardware Block Diagram ........................................................................................................ 1-6 W311 ............................................................................................................................ 1-6 W321 ............................................................................................................................ 1-6 W341 ............................................................................................................................ 1-7 Chapter 2 Hardware Introduction.................................................................................2-1 Appearance .............................................................................................................................. 2-2 W311 ............................................................................................................................ 2-2 W321 ............................................................................................................................ 2-2 W341 ............................................................................................................................ 2-3 Dimensions .............................................................................................................................. 2-4 W311 ............................................................................................................................ 2-4 W321 ............................................................................................................................ 2-5 W341 ............................................................................................................................ 2-6 LED Indicators......................................................................................................................... 2-7 Reset Button............................................................................................................................. 2-7 Real Time Clock ...................................................................................................................... 2-8 Chapter 3 Hardware Connection Description .............................................................3-1 Wiring Requirements ............................................................................................................... 3-2 Connecting the Power................................................................................................... 3-2 Grounding the Unit....................................................................................................... 3-2 Connecting Data Transmission Cables .................................................................................... 3-3 Connecting to the Network........................................................................................... 3-3 Connecting to the WLAN............................................................................................. 3-3 Connecting to a Serial Device ...................................................................................... 3-4 Serial Console Port ....................................................................................................... 3-4 SD Slot..................................................................................................................................... 3-4 USB (W341 only) .................................................................................................................... 3-7 Relay Output (W341 only)....................................................................................................... 3-7 Appendix A Regulatory Approval Statement ................................................................ A-1 1 Chapter 1 Introduction The W300 series is a line of wireless RISC-based embedded computers that features 802.11a/b/g WLAN, RS-232/422/485 serial ports, and an Ethernet port in a small, rugged chassis. In addition, all models feature an SD slot, and the W341 features two USB 2.0 hosts and one relay output channel. Your W300 series embedded computer is ideal for diverse, machine-to-machine embedded applications. It enables wireless operation for traditionally wired networks and serial devices. The W300 series not only provides transparent data transfers, but also numeric computing, protocol conversion, data processing and even data encryption. You will find it easier to build embedded systems for distributed peer-to-peer communication, turn wired devices into wireless devices, and introduce higher mobility and more intelligence to your system. In this chapter, you will learn about the capabilities of this embedded computer. This chapter covers the following topics: Overview Package Checklist Product Features Product Hardware Specifications Hardware Block Diagram ¾ W311 ¾ W321 ¾ W341 W311/321/341 Hardware User’s Manual Introduction Overview The W300 Series wireless embedded computer is designed around the Moxa ART ARM9 32-bit RISC processor. Unlike the X86 CPU, which uses a CISC design, the Moxa ART ARM9 uses RISC architecture and modern semiconductor technology to provide a powerful computing engine without generating significant heat. The processor also integrates UART and LAN functions to provide exceptional communication performance, but without the bus bandwidth limitations associated with general ARM-based communication products. On-board NOR Flash ROM and SDRAM provides ample storage capacity, and for select models, the SD slot gives applications extra room to expand. The built-in WLAN function supports the 802.11a/b/g standard, providing transmission security with WEP, WPA and WPA2. The backup LAN port not only provides an alternative solution for networking but also supports Ethernet clients, allowing any network device to plug in and connect to the WLAN. The built-in RS-232/422/485 serial ports support a wide range of serial devices, making this platform suitable for data acquisition and protocol conversion applications. The Linux-based operating system comes pre-installed and ready to run, providing an open platform for software development. Software written for desktop PCs can easily be ported to W300 Series embedded computers by using a common complier, so little time is spent modifying existing software code. In addition, the operating system, device drivers, and user-developed software can all be stored in the built-in flash memory. Package Checklist The W300 Series includes the following models: W311-LX A small, RISC-based, ready-to-run, wireless embedded computer with WLAN, one serial port, Ethernet, SD slot, and Linux OS W321-LX A small, RISC-based, ready-to-run, wireless embedded computer with WLAN, two serial ports, Ethernet, SD slot, and Linux OS W341-LX A RISC-based, ready-to-run, wireless embedded computer with WLAN, four serial ports, Ethernet, SD slot, USB port, relay output, and Linux OS Each model is shipped with the following items: W300 Series wireless embedded computer Quick Installation Guide Documentation & Software CD 100 cm RJ45-to-RJ45 Ethernet cross-over cable 100 cm console port cable (CBL-4PINDB9F-100) Universal Power Adaptor Product Warranty Statement Optional Accessories y 35 mm DIN-rail mounting kit (DK-35A) NOTE: Notify your sales representative if any of the above items are missing or damaged. 1-2 W311/321/341 Hardware User’s Manual Introduction Product Features W300 Series computers have the following features: y Moxa ART 32-bit ARM9 industrial communication processor y 32 MB on-board RAM (64 MB for W341) y 16 MB built-in flash memory y 802.11a/b/g Wireless LAN y WEP, WPA and WPA2 encryption y Infrastructure mode and Ad-Hoc mode y RS-232/422/485 serial ports with software selectable interface y Baudrates between 50 and 921.6 Kbps; supports non-standard baudrates y 10/100M Ethernet for backup networking y SD card slot for storage expansion y Withstands 5G continuous vibration and 50G shock y LED indicators for status, serial transmission, and wireless signal strength y Ready-to-run Linux platform y Installation on DIN-rail or wall y Fanless design for increased ruggedness Product Hardware Specifications System CPU DRAM Flash Storage Expansion Moxa ART ARM9 32-bit RISC CPU, 192 MHz W311: 32 MB W321: 32 MB W341: 64 MB W311: 16 MB W321: 16 MB W341: 64 MB W311: SD slot x 1 W321: SD slot × 1 W341: SD slot × 1 USB W341: USB 2.0 host × 2 Relay Output Form C, SPDT × 1 Normal switching: Capacity: Switching power: Switching voltage: Switch current: Operation time: Initial contact resistance: 2A @ 30 VDC 60W max. 220 VDC max. 2A max. 4 ms @ 20°C 100 Mohm max. Console Port RS-232 × 1 (TxD, RxD, GND), 4-pin header output, “115200, n, 8, 1” Button Reset button × 1, supports “Reset to Factory Default” RTC, buzzer, Watchdog Timer Built-in Embedded Linux with MMU support, based on Linux Kemel 2.6 Others OS 1-3 W311/321/341 Hardware User’s Manual Introduction WLAN Communication Standard Compliance 802.11a/b/g Radio Frequency Type DSSS, CCK, OFDM Media Access Protocol Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) Modulation Transmission Distance Security 802.11a/g: OFDM (64-QAM, 16-QAM, QPSK, BPSK) 802.11b: DSSS (DBPSK, DQPSK, CCK) 5.15 to 5.35 GHz: 15 dBm @6 Mbps; 12 dBm @54 Mbps 5.725 to 5.825 GHz: 15 dBm @6 Mbps; 12 dBm @54 Mbps USA: 2.412 to 2.462 GHz (IEEE802.11g): 17 dBm @6 Mbps; EU: 2.412 to 2.472 GHz 15 dBm @54Mbps 2.412 to 2.462 GHz (IEEE802.11b): 18 dBm@ 1 to 11 Mbps 5.15 to 5.35 GHz: 6 Mbps @ -90 dBm; 54 Mbps @ -72 dBm 5.47 to 5.725 GHz: 6 Mbps @ -90 dBm; 54 Mbps @ -72 dBm 5.725 to 5.825 GHz: 6 Mbps @ -89 dBm; 54 Mbps @ -72 dBm USA: 2.412 to 2.462 GHz (IEEE802.11g): 6 Mbps @ -90 dBm; EU: 2.412 to 2.472 GHz 54 Mbps @ -73 dBm USA: 2.412 to 2.462 GHz (IEEE802.11b): 11 Mbps @ -87 dBm; EU: 2.412 to 2.472 GHz 1 Mbps @ -94 dBm 54 Mbps with auto fallback (54, 48, 36, 24, 18, 12, 11, 9, 6, 5.5, 2, 1 Mbps) 802.11b supported rates: 1, 2, 5.5, 11 Mbps 802.11a/g supported rates: 6, 9, 12, 18, 24, 36, 48, 54 Mbps 100 meters at 11 Mbps (with no obstructions) WEP 64-bit/128-bit, WPA, WPA2 data encryption Antenna Connector Reverse SMA Antenna External 2 dBi dipole antenna WLAN Mode Infrastructure, Ad-Hoc Transmission Power (Typical) Receiver Sensitivity (Typical) Transmission Rate Network Communication LAN 10/100 Mbps RJ45 × 1, auto-sensing Protection 1.5 KV built-in magnetic isolation protection Serial Communication Serial Port W311: RS-232/422/485 DB9 male × 1 W321: RS-232/422/485 DB9 male × 2 W341: RS-232/422/485 DB9 male × 4 Protection 15 KV built-in ESD protection for all signals Data bits 5, 6, 7, 8 Stop bits Parity 1, 1.5, 2 None, Even, Odd, Space, Mark Flow Control Speed RTS/CTS, XON/XOFF, RS-485 ADDC™ 50 bps to 921.6 Kbps; supports non-standard baudrates LEDs System WLAN Ready, SD activity Enable, signal strength 1-4 W311/321/341 Hardware User’s Manual LAN Serial Power Requirements Power Input Power Consumption Mechanical Dimension (W × D × H) Introduction 10 M/Link, 100 M/Link (RJ45 connector) TxD, RxD 12 to 48 VDC W311: 400 mA @ 12 VDC W321: 400 mA @ 12 VDC W341: 600 mA @ 12 VDC with no USB devices attached 1.2A @ 12 VDC with USB devices on each port at max spec 500 mA @ 5 VDC Mounting (without wall mount ear or antenna) W311: 77 × 111 × 26 mm W321: 77 × 111 × 26 mm W341: 150 × 100 × 38 mm 110 mm W311: aluminum, 1 mm W321: aluminum, 1 mm W341: aluminum, 1 mm / SECC, 1 mm for rear panel DIN-rail, wall Environmental Operating Temperature Storage Temperature -10 to 60°C (14 to 140°F), 5 to 95% RH -20 to 80°C (-4 to 176°F), 5 to 95% RH Regulatory Approvals EMC Safety Others Warranty FCC, CE (Class A) TUV, UL, cUL RoHS, CRoHS, WEEE 5 years Antenna Construction Material 1-5 W311/321/341 Hardware User’s Manual Introduction Hardware Block Diagram W311 Ethernet 802.11a/b/g LAN WLAN PHY Power Circuit MAC 16MB RAM MOXA ART CPU 32-bit ARM9 192 MHz 8MB Flash RTC Watchdog UART UART Serial Port 1 Console Port RS-232/422/485 SD Function RS-232 W321 Ethernet LAN 802.11a/b/g WLAN PHY Power Circuit MAC 16MB RAM MOXA ART CPU 32-bit ARM9 192 MHz 8MB Flash RTC Watchdog UART UART UART Serial Port 1 Serial Port 2 Console Port RS-232/422/485 RS-232 1-6 SD Function W311/321/341 Hardware User’s Manual Introduction W341 802.11a/b/g Ethernet USB 2.0 Host x 2 Relay Output LAN WLAN PHY MAC Power Circuit 16MB RAM MOXA ART CPU 32-bit ARM9 192 MHz RTC 8MB Flash SD Function Watchdog UART UART UART UART UART Serial Port 1 Serial Port 2 Serial Port 3 Serial Console Port 4 Port RS-232/422/485 RS-232 1-7 2 Chapter 2 Hardware Introduction The W300 series hardware is compact, well-designed, and built rugged for industrial applications. LED indicators help you monitor the performance and identify trouble spots. Multiple ports allow the connection of different devices for wireless operation. With the reliable and stable hardware platform that is provided, you may devote your attention to the development of your application. In this chapter, learn the basics about the embedded computer hardware and its different parts. This chapter covers the following topics: Appearance ¾ W311 ¾ W321 ¾ W341 Dimensions ¾ W311 ¾ W321 ¾ W341 LED Indicators Reset Button Real Time Clock W311/321/341 Hardware User’s Manual Hardware Introduction Appearance W311 Wireless LAN Antenna Ethernet (10/100BaseTx) 12 to 48 VDC Serial Console Port Internal SD Slot for Storage Expansion (remove cover to access) P1 Serial Port (RS-232/422/485) W321 Wireless LAN Antenna Ethernet (10/100BaseTx) 12 to 48 VDC Serial Console Port Internal SD Slot for Storage Expansion (remove cover to access) Serial Port 1 (RS-232/422/485) Serial Port 2 (RS-232/422/485) 2-2 W311/321/341 Hardware User’s Manual Hardware Introduction W341 Top View Relay Output USB 2.0 Host Internal SD Slot for Storage Expansion (remove cover to access) USB LAN Reset Button RELAY Reset NO COM NC 12-48V Ethernet 10/100BaseTX 12 to 48 VDC Wireless LAN antenna Front View USB 2.0 Host x 2 Wireless LAN Antenna Ethernet (10/100BaseTx) Relay Output 12 to 48 VDC Internal SD Slot for Storage Expansion (remove cover to access) Serial Console Port Serial Port 1 to 4 (RS-232/422/485) Bottom View Serial Port x 4 (RS-232/422/485) 2-3 W311/321/341 Hardware User’s Manual Hardware Introduction Dimensions 26 mm (1.02 in) 77 mm (3.03 in) 88 mm (3.46 in) 100 mm (3.94 in) 2-4 148.1 mm (5.83 in) 43 mm (1.69 in) 25 mm (0.98 in) 111 mm (4.37 in) W311 W311/321/341 Hardware User’s Manual Hardware Introduction 26 mm (1.02 in) 77 mm (3.03 in) 88 mm (3.46 in) 100 mm (3.94 in) 2-5 148.1 mm (5.83 in) 43 mm (1.69 in) 25 mm (0.98 in) 111 mm (4.37 in) W321 W311/321/341 Hardware User’s Manual Hardware Introduction W341 USB LAN RELAY Reset NO COM NC 40.5 mm (1.59 in) 150 mm (5.91 in) 161 mm (6.34 in) 173 mm (6.81 in) 2-6 137.1 mm (5.40 in) 35 mm (1.38 in) 25 mm (0.98 in) 100 mm (3.93 in) 12-48V 38 mm (1.50 in) W311/321/341 Hardware User’s Manual Hardware Introduction LED Indicators Please note that the W311 does not include an SD slot, so it will not have an SD LED. LED Name Ready SD WLAN LED Color Green Off Green Off Green Off Signal Strength LAN TxD P1-P4 RxD P1-P4 Green Off Orange Green Off Green Off Yellow Off LED Function Power is on and functioning normally Power is off or there is another power error SD card is detected No SD card is detected ON: WLAN is ready Blinking: Conflict with WLAN IP or no response from DHCP server WLAN is not ready or function error Number of glowing LEDs indicates signal strength 5: Excellent 4: Very good 3: Good 2: Fair 1: Bad No signal or WLAN connection failed 10 Mbps Ethernet link 100 Mbps Ethernet link Disconnected or short circuit Serial ports P1-P4 transmitting data Serial ports P1-P4 not transmitting data Serial ports P1-P4 receiving data Serial ports P1-P4 not receiving data Reset Button Hold the reset button down for 5 seconds to load the factory default configuration. After loading the factory defaults, the system will reboot automatically. We recommend that you use this function only if the software is not working properly. To reset the Linux system software, always use the software reboot command (“reboot”) to protect the integrity of data. The reset button is NOT designed as a hard reboot for the embedded computer. ATTENTION Restoring default settings preserves your data Resetting the embedded computer to factory defaults will NOT format the user directory and will NOT erase the user’s data. The reset button only loads a configuration file. All files in the /etc directory will revert to their factory defaults, but all other user data will remain intact in the Flash ROM. Please note that if there is a problem with the /etc directory, the embedded computer may be unable to restore the factory default settings. 2-7 W311/321/341 Hardware User’s Manual Hardware Introduction Real Time Clock The embedded computer’s real-time clock is powered by a lithium battery. We strongly recommend that you NOT replace the lithium battery on your own. If the battery needs to be changed, please contact the Moxa RMA service team. ATTENTION There is a risk of explosion if the wrong type of battery is used. To avoid this potential danger, always be sure to use the correct type of battery. Contact the Moxa RMA service team for battery replacement. 2-8 3 Chapter 3 Hardware Connection Description W300 Series wireless embedded computers are equipped for multiple types of connections. WLAN, Ethernet, and multiple serial interfaces are built into every model, including a serial console port for monitoring of bootup messages. Select models also include an SD slot for storage expansion, USB ports for additional device and storage options, and relay output connections. With the open-source Linux kernel, you are free to develop custom applications for remote, wireless operation of your device. In this chapter, learn how to connect the embedded computer to the network and to various devices. This chapter covers the following topics: Wiring Requirements ¾ Connecting the Power ¾ Grounding the Unit Connecting Data Transmission Cables ¾ Connecting to the Network ¾ Connecting to the WLAN ¾ Connecting to a Serial Device ¾ Serial Console Port SD Slot USB (W341 only) Relay Output (W341 only) W311/321/341 Hardware User’s Manual Hardware Connection Description Wiring Requirements This section describes how to connect serial devices to the embedded computer. You should heed the following common safety precautions before proceeding with the installation of any electronic device: y Use separate paths to route wiring for power and devices. If power wiring and device wiring paths must cross, make sure the wires are perpendicular at the intersection point. NOTE: Do not run signal or communication wiring and power wiring in the same wire conduit. To avoid interference, wires with different signal characteristics should be routed separately. y Use the type of signal transmitted through a wire to determine which wires should be kept separate. The rule of thumb is that wiring that shares similar electrical characteristics can be bundled together. y Keep input wiring and output wiring separate. y It is advisable to label the wiring to all devices in the system. ATTENTION Safety First! Be sure to disconnect the power cord before installation and/or wiring. Watch Electrical Current! Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes dictating the maximum current allowable for each wire size. If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your equipment. Watch Temperature! Be careful when handling the unit. When the unit is plugged in, the internal components generate heat, and consequently the outer casing may feel hot to the touch. Connecting the Power Connect the “live-wire” end of the 12-48 VDC power adapter to the embedded computer’s terminal block. When power is properly supplied, the “Ready” LED will glow a solid green after a 25 to 30 second delay. Grounding the Unit Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Before connecting any devices, run a ground wire from the ground screw to the grounding surface. 3-2 W311/321/341 Hardware User’s Manual Hardware Connection Description ATTENTION This product should be mounted to a well-grounded mounting surface such as a metal panel. SG V- V+ SG: The Shielded Ground (sometimes called Protected Ground) contact is the left most contact of the 3-pin power terminal block connector, as viewed from the angle shown here. Connect the SG wire to an appropriate grounded metal surface. 12-48V Connecting Data Transmission Cables This section describes how to connect cables for the network, serial devices, and serial COM terminal. Connecting to the Network Plug your network cable into the embedded computer’s Ethernet port. The other end of the cable should be plugged into your Ethernet network. When the cable is properly connected, the LEDs on the embedded computer’s Ethernet port will glow to indicate a valid connection. The 10/100 Mbps Ethernet LAN port uses 8-pin RJ45 connectors. The following diagram shows the pinouts for these ports. The LED indicator on the right glows a solid green color when the cable is properly connected to a 100 Mbps Ethernet network. The LED will flash on and off when Ethernet packets are being transmitted or received. The LED indicator on the left glows a solid orange color when the cable is properly connected to a 10 Mbps Ethernet network. The LED will flash on and off when Ethernet packets are being transmitted or received. Pin Signal ETx+ ETxERx+ ----ERx----- Connecting to the WLAN The wireless embedded computer is WLAN ready and includes an 802.11 a/b/g WLAN module. It supports WEP, WPA and WPA2 data encryption. To verify WLAN operation, first configure your WLAN settings on the embedded computer using the serial console or a wired network connection. Please refer to the operating system user’s manual for further detail. 3-3 W311/321/341 Hardware User’s Manual Hardware Connection Description Connecting to a Serial Device Your serial device can plug into the embedded computer’s serial port using a serial cable. Serial ports P1 to P4 have male DB9 connectors and can be configured for RS-232, RS-422, or RS-485 communication through software. The pin assignments are shown in the following table: DB9 Male Port RS-232/422/485 Pinouts 1 2 3 4 5 6 7 8 9 Pin RS-232 RS-422 DCD RxD TxD DTR GND DSR RTS CTS TxDA(-) TxDB(+) RxDB(+) RxDA(-) GND ------- RS-485 (4-wire) TxDA(-) TxDB(+) RxDB(+) RxDA(-) GND ------- RS-485 (2-wire) ----DataB(+) DataA(-) GND ------- Serial Console Port The serial console port is a 4-pin pin-header RS-232 port. It is designed for serial console terminals, which are useful for viewing boot-up messages. Serial Console Port & Pinouts Pin Serial Console Cable Signal TxD RxD NC GND SD Slot The W311/321/341 provide an SD slot for storage expansion. Moxa provides an SD flash disk for plug & play expansion that allows users to plug in a Secure Digital (SD) memory card compliant with the SD standard V1.0 for up to 1 GB of additional memory space. The following steps show you how to install SD card into the W311/321/341. W311/321 The SD slot is located on the right side of the W311/321 enclosure. To install an SD card, you must first remove the SD slot’s protective cover to access the slot, and then plug the SD card directly into the slot. 3-4 W311/321/341 Hardware User’s Manual Hardware Connection Description The SD card will be mounted at /mnt/sd. Detailed installation instructions are shown below: Step 1: Use a screwdriver to remove the screws holding the SD slot’s outer cover. Step 2: After removing the cover, insert the SD memory card as shown. 3-5 W311/321/341 Hardware User’s Manual Hardware Connection Description W341 The SD slot is located on the front panel of the W341. To install an SD card, you must first remove the SD slot’s protective cover to access the slot, and then plug the SD card directly into the slot. The SD card will be mounted at /mnt/sd. Detailed installation instructions are shown below: Step 1: Use a screwdriver to remove the screws holding the SD slot’s outer cover, and then remove the cover. Step 2: Insert the SD memory card as shown. NOTE: To remove the SD card from the slot, press the SD card in slightly with your finger, and then remove your finger to cause the card to spring out partially. You may now grasp the top of the card with two fingers and pull it out. Before removing the SD card, remember to type /sync to ensure that your data has been written. 3-6 W311/321/341 Hardware User’s Manual Hardware Connection Description USB (W341 only) The W341 includes two USB 2.0 hosts. These hosts can be used for an external flash disk or hard drive in order to store large amounts of data. USB 2.0 Ports NC COM The W341 includes a relay output channel. There is a 3-pin terminal block for the relay output connection, with pinouts as shown in the figure. NO Relay Output (W341 only) RELAY 3-7 A Appendix A Regulatory Approval Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator & your body. With the 5.15-5.25 GHz band, U-NII devices will be restricted to indoor operations to reduce any potential for harmful interference to co-channel MSS operations. Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user authority to operate the equipment. This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used according to the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which is found by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna Increase the separation between the equipment or devices Connect the equipment to an outlet other than the receiver's Consult a dealer or an experienced radio/TV technician for assistance
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