ICP DAS USA LP-8121 User Manual Download

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I-8211W User Manual version 1.0.1 Page: 10

Step 2: Pull top and bottom locking tabs toward module face. Click indicates lock is engaged.

Step 3: Power on LinPAC

After boot the Linux OS, the LinPAC will automatically launch the application and get the

GPS/GLONASS time to minimize the RTC drift to 1 millisecond. Using “

ntpq –p

” command to check

the time’s error (the time error < 1ms). Please refer to below diagram:

Tips & Warnings

Sometime the ntpd daemon need to spend 10~20 minutes to minimize the time

error, so the command “

ntpq –p

” can’t show the symbol ‘

’ or time error less

than 1ms immediately.

Summary of Contents for LP-8121

Page 1: ...LinPAC I 8211W User Manual GPS GLONASS Time Synchronization V1 0 1 Apr 2022 LX 8131 LX 8331 LX 8731 LP 8121 LP 8421 LP 8821...

Page 2: ...reserves the right to change this manual at any time without notice The information furnished by ICP DAS is believed to be accurate and reliable However no responsibility is assumed by ICP DAS for it...

Page 3: ...l service icpdas com Contents Contents 3 1 Introduction 4 1 1 Features 5 1 2 Specifications 6 1 3 LED indicators 7 2 LinPAC I 8211W Getting Started 8 2 1 I 8211W GPS Time Synchronization 9 3 Internet...

Page 4: ...use GPS GLONASS satellite time for automatic and precise time synchronization The I 8211W G can be plugged into any slot of the LinPAC the LinPAC will automatically launch the application and acquire...

Page 5: ...017 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com 1 1 Features Time synchronization error under 1 millisecond Support GPS GLONASS Capable of SBAS WAAS EGNOS MSAS Plug and Play in LinPAC...

Page 7: ...ce icpdas com 1 3 LED indicators LED Status Description PWR Red ON The module s power is working correctly OFF The module s power turned off or error GPS GLONASS Green ON The module is searching GPS G...

Page 8: ...ing Started This chapter provides a guided tour of the I 8211W installation for user working with the LinPAC for the first time Before starting any task please check the package contents If any of the...

Page 9: ...o below steps to insert a I 8211W module into any expansion slot of LinPAC and synchronize GPS GLONASS time automatically LinPAC LX 8x31and LP 8x21 Series Step 1 Align circuit card with slot and press...

Page 10: ...LinPAC After boot the Linux OS the LinPAC will automatically launch the application and get the GPS GLONASS time to minimize the RTC drift to 1 millisecond Using ntpq p command to check the time s err...

Page 11: ...ied and it includes Technical Support and User s Manual Download etc Users can refer to the following web site to get more information 1 ICP DAS Web Site http www icpdas com 2 LX 8x31 LP 8x21 Product...

Page 12: ...com Appendix A Troubleshooting Q1 No I 8211W s Linux device name Ans It means the Linux driver isn t installed or the module isn t setup correctly User can re plug the I 8211W module into the slot Aft...

Page 13: ...ons 1 The location can t receive the GPS GLONASS signal 2 No antenna inserted 3 Wrong operator parameters 4 Hardware data interface dev ttyS configured incorrectly When this happens 1 Connecting anten...

Page 14: ...I 8211W User Manual version 1 0 1 Page 14 Copyright 2017 ICP DAS Co Ltd All Rights Reserved E mail service icpdas com B I 8211W s Device Name in LinPAC LX 8x31 support 1 3 7 slots LP 8x21 support 1 4...

Page 15: ...mail service icpdas com C GLONASS Satellite Time Synchronization The LinPAC built in NTPD package uses GPS signal as default You can change the setting to use GLONASS signal 1 Connecting antenna corre...

Page 16: ...ICP DAS Co Ltd All Rights Reserved E mail service icpdas com D Revision History This chapter provides revision history information to this document The table below shows the revision history Revision...