QTech SMS Lite User Manual page 4

The circuit details, software algorithms and know how disclosed in this document are proprietary to
QTech Data Systems Limited and shall remain the intellectual property of
The information in this document is subject to change without notice and does not represent a
commitment on any part of QTech Data Systems Limited. While the information contained herein is
assumed to be accurate, QTech Data Systems Limited assumes no responsibility
Contact QTech
QTech Data Systems Limited
12 Midas Place, Middleton
Christchurch 8024
New Zealand
Phone: +64-3-366-3713
Email: support@qtech.co.nz
Web: www.qtech.co.nz
Revision Details
Version Date
V1.0 10/11/14
V1.1 23/02/15
V1.2 13/03/15
V1.3 22/08/16
V1.4 20/09/16
V1.5 23/02/18
V1.6 11/02/19
V1.7 12/07/19
V1.8 1/08/19
V1.9 15/04/20
V1.10 18/02/21
V2.0 10/11/21
V2.1 13/1/22
V2.2 29/3/22
V2.3 1/12/22
SMS Lite 4G– User Guide
Copyright 2022
QTech Data Systems Limited
Christchurch, New Zealand
All rights reserved.
QTech Data Systems Limited.
DISCLAIMER
for any errors or omissions.
Author Change Description
IH Original Format
RH, FA Addition of 'debounce' option for inputs & formatting update
FA Reword escalation sentence pg10. Edit diagram for Input / Output
RH Minor alterations to suit V3.00 Firmware
RH Added SIM Busy error code
Added notices to clarify security conditions required for messages to be
GP
processed. Added additional information on LED error codes
RH Added variable length pulse command
GP Added troubleshooting section
Added LE910 modem specifications. Amended text for legibility and naming
AM
consistency
PW Add product number to version control
PW Add programming tip to avoid spaces in naming conventions
AM New document format, minor updates and corrections
GP Minor corrections to debounce, add test command
GP Minor additions to defaults and inputs sections
AM Additional troubleshooting, basic configuration section and message format help
© 2022 QTech Data Systems Ltd
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