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W315A/325A 

Hardware Introduction 

 

2-4 

Reset Button 

Hold in the reset button 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 your data. 

The reset button is NOT designed to hard reboot the embedded computer. 

 

ATTENTION 

Restoring default settings preserves your data

 

Resetting the embedded computer to factory defaults will format the user directory and erase the contents in 

/etc

 and 

/home

. The reset button only loads a configuration file. All files in the 

/etc 

directory will revert to 

their factory defaults. 

Note that if there is a problem with the 

/etc 

directory, the embedded computer may be unable to restore the 

factory default settings. 

 

Real Time Clock 

The embedded computer’s real-time clock is powered by a lithium battery. We strongly recommend that you do 
NOT replace the lithium battery on your own. If the battery needs to be changed, contact the Moxa RMA service 
team. 

 

WARNING 

There is a risk of explosion if the wrong type of battery is used. To avoid this potential danger, always use the 
correct type of battery. Contact the Moxa RMA service team if you need to replace your battery. Dispose of 
used batteries according to the instructions on the battery. 

 

 

Содержание W315A

Страница 1: ...W315A 325A User s Manual Second Edition March 2011 www moxa com product 2011 Moxa Inc All rights reserved ...

Страница 2: ...vements 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...

Страница 3: ... 2 3 Reset Button 2 4 Real Time Clock 2 4 3 Hardware Connection Description 3 1 Installing the W315A 325A 3 2 Wiring Requirements 3 2 Connecting the Power 3 3 Grounding the Unit 3 3 Connecting Data Transmission Cables 3 3 Connecting to the Network 3 3 Connecting to a Serial Device 3 4 Connecting to the Serial Console Port 3 4 Connecting an Antenna 3 4 Installing a SIM Card 3 5 Installing an SD Car...

Страница 4: ... enable the wireless operation of traditionally wired network and serial devices and can handle transparent data transfer numerical 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 sys...

Страница 5: ...rm 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 be ported easily to W315A 325A series embedded computers by using a common compiler so you do not need to spend a lot of time modifying existing software code In addition ...

Страница 6: ...XA ART ARM9 32 bit RISC CPU 192 MHz OS pre installed Embedded Linux with MMU support DRAM 32 MB Flash 16 MB Storage Storage Expansion SD slot Ethernet Interface LAN 1 auto sensing 10 100 Mbps port RJ45 Magnetic Isolation Protection 1 5 KV built in Cellular Interface Cellular Modes GSM GPRS Radio Frequency Bands 850 900 1800 1900 MHz GPRS Class 10 Coding Schemes CS1 to CS4 Serial Interface Serial S...

Страница 7: ... 5 500 Hz 1 Oct min 1 hr axis Anti shock 50 g IEC 68 2 6 half sine wave 30 ms Power Requirements Input Voltage 12 to 48 VDC Power Consumption Without GPRS loading 4 8 W 100 mA 48 VDC 200 mA 24 VDC 400 mA 12 VDC With GPRS loading 12 W 330 mA 48 VDC 540 mA 24 VDC 1000 mA 12 VDC 200 mA 24 VDC 400 mA 12 VDC Regulatory Approvals EMC CE EN55022 Class A EN61000 3 2 EN61000 3 3 EN55024 FCC Part 15 Subpart...

Страница 8: ...W315A 325A Introduction 1 5 Hardware Block Diagrams W315A W325A ...

Страница 9: ...u monitor performance and identify trouble spots multiple serial ports allow you to connect different devices for wireless operation and the reliable and stable hardware platform lets you devote your attention to developing your applications The following topics are covered in this chapter Appearance W315A W325A Dimensions LED Indicators Reset Button Real Time Clock ...

Страница 10: ...W315A 325A Hardware Introduction 2 2 Appearance W315A W325A ...

Страница 11: ...no response from DHCP server Off GPRS is not ready or function error exists Signal Strength Green Number of glowing LEDs indicates signal strength 5 Excellent 4 Very good 3 Good 2 Fair 1 Bad Off No signal or GPRS connection failed LAN Orange 10 Mbps Ethernet link Green 100 Mbps Ethernet link Off Disconnected or short circuit TxD P1 P2 Green Serial ports P1 P2 transmitting data Off Serial ports P1 ...

Страница 12: ...ctory and erase the contents in etc and home The reset button only loads a configuration file All files in the etc directory will revert to their factory defaults Note that if there is a problem with the etc directory the embedded computer may be unable to restore the factory default settings Real Time Clock The embedded computer s real time clock is powered by a lithium battery We strongly recomm...

Страница 13: ...he 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 The following topics are covered in this chapter Installing the W315A 325A Wiring Requirements Connecting the Power Grounding the Unit Connecting Data Transmission Cables Connecting to t...

Страница 14: ...should be perpendicular at the intersection point NOTE Do not run signal or communication wiring together with power wiring in the same wire conduit To avoid interference wires with different signal characteristics should be routed separately 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 elect...

Страница 15: ...ounded metal surface Connecting Data Transmission Cables In this section we describe how to connect the W315A 325A embedded computers to the network serial devices and a 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...

Страница 16: ... 2 RxD TxDB TxDB 3 TxD RxDB RxDB DataB 4 DTR RxDA RxDA DataA 5 GND GND GND GND 6 DSR 7 RTS 8 CTS Connecting to the 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 Serial Console Cable Pin Signal 1 TxD 2 RxD 3 NC 4 GND Connecting an Antenna The W315A 32...

Страница 17: ...ual for details NOTE To remove the SIM card from the slot press the SIM card in slightly with your finger and then remove your finger to allow the card to spring out partially You may now grasp the top of the card with two fingers and pull it out Installing an SD Card for Storage Expansion The W315A 325A embedded computers have an SD slot for storage expansion The SD slot allows users to plug in a...

Страница 18: ... Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for a class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protec...

Страница 19: ... compliance with the FCC s RF exposure guidelines when installing and or operating this equipment you should maintain a minimum distance of 20 cm between the transmitter and your body Use only the supplied antenna Unauthorized antennae modifications or attachments could damage the transmitter and may violate FCC regulations The device includes a GPRS module This module has been approved by FCC The...

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