q-Tech CM910 User manual

CM910 Cellular Modem
User Guide
CM910 Cellular Modem
Revision
2.
3

CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
2
Contents
Introduction ..................................................................................................................... 4
Installation ....................................................................................................................... 5
Antenna Connection ................................................................................................................. 5
Power Supply ........................................................................................................................... 5
Installing the SIM Card ............................................................................................................. 5
Operation Notes ............................................................................................................... 7
Cellular IP Data Communications .............................................................................................. 7
USB Connectivity ...................................................................................................................... 7
DATRAN SMS Direct Operation ................................................................................................. 7
Status Indicators ...................................................................................................................... 8
Yellow LED = Status ......................................................................................................................... 8
Green LED = Power ......................................................................................................................... 8
Technical Details .............................................................................................................. 9
Warranty ........................................................................................................................ 10
Additional Information and Support ............................................................................... 10

CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
3
Copyright 2020 QTech Data Systems Limited
Christchurch, New Zealand.
All rights reserved.
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 QTech Data Systems
Limited.
DISCLAIMER
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 for any errors or
omissions.
Contact QTech
QTech Data Systems Limited
12 Midas Place, Middleton
Christchurch 8024
New Zealand
Phone: [phone]
Fax: [phone]
Email: [email protected]o.nz
Web: www.qtech.co.nz
Revision Details
1.0 September 2014 Initial Issue of Quick Start Guide
2.0 December 2016 Formatting changes
2.1 January 2020 Converted to User Guide format and changes to take account of LE910 modem
2.3 March 2020 Update re: compatibility with XL4 Plus firmware.

CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
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Introduction
The CM910 Cellular Modem features a 3G/4G LTE cellular modem which is capable of connectivity
with current New Zealand and Australian Telecommunication Companies for both SMS and Data
Communications.
The modem is controlled by an AT command interface via either a standard serial RS232 or by USB
connection and can be used with a XL4 Plus RTU by using the cable provided from the RS232 port
DB9 (male) on the CM910 and the RS232 port on the RTU using the RJ45 connector.
By default the yellow status LED indicates the current state of the modem. It can be user custom
configured to match your application providing both solid and flashing states.
This modem is suitable for use in:
Cellular IP Data Communications
 XL4 Plus RTU to the DATRAN SCADA base station. This requires the following:
 XL4 Plus firmware v7.15 (required)
(The modem partially works with older firmware, but the User may experience poor
reception and the modem randomly rebooting)
 QTech Workbench v2.7 (recommended)
 DATRAN VI v6.75 SP1+ (recommended)
DATRAN SMS Direct
 For sending SMS alarms directly from the DATRAN VI SCADA base station.
 DATRAN VI v6.75 SP1+ (recommended).
In the box
Each CM910 (Part Number PD9320) is supplied with the following:
Qty 1x CM910 Modem
Qty 1x Internal Stub aerial 2.1dBi Gain
Qty 1x Serial Cable
Qty 1x DC
power cable 1m length
Qty 1x USB Type A
-
B

CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
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Installation
Antenna Connection
Carefully connect the antenna. Do not operate the CM910 without an antenna connected. Refer to
Technical Details section for alternatives. The antenna must be vertically orientated.
The supplied stub antenna (P/N PD9230) should be suitable for locations with good cellular coverage
(full bars) and where the CM910 is in a non-conductive enclosure (plastic etc).
Other external mounting antenna options are available; contact your equipment supplier for more
details.
Warning – Do NOT operate the CM910 without an antenna connection.
Power Supply
The CM910 is over voltage protected by a 30 volt Zenner diode. Voltages greater than this will blow
the internal 500mA fast blow fuse.
The supply voltage should be clean, continuous and transient free.
Warning – Do NOT use Switch Mode Power Supplies (SMPS) with this product. The DC power
supply used for this product MUST have a grounded negative or be a “linear” transformer based
plug pack as the antenna, programming port and external connections can provide exposed earth
points and the SMPS can impose an AC voltage on the DC ground, which can lead to damage.
Suitable cost effective plug packs are available from QTech P/N PD5412, PD5413 & PD5414.
Installing the SIM Card
Note: The reliability of all cellular products is dependent on good signal strength. Before deciding on
the Telco to choose, please check coverage. We suggest that a cellular phone is taken to site, to
check the signal strength, i.e. how many “bars” are displayed.
Before installing the SIM card, ensure that it is activated. We recommend you insert the SIM into a
regular cell phone to check this. Carefully remove the CM910 cover by prising the side panels close
to the retaining dimples.
Locate the SIM card holder adjacent to the USB and RS232 connectors. Push the top part of the
holder in the direction of the “Open” arrows (away from the antenna). Carefully insert the SIM card
from your chosen Telco. Be careful to orientate the card correctly, once in place carefully slide the
plastic retainer towards the antenna to “Lock”.
Aerial must be
vertical if
mounted flat
Aerial must be
vertical when
wall mounted
Parallel
to wall
surface
Perpendicular
to flat surface

CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
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Unlock Holder Lift & Insert SIM Close Holder Lock Holder
Note – The SIM card must be a “full size” card, not a “micro SIM”.
Networks tested in the Workshop
This is a guideline as the other Networks should work, but hasn’t been verified in the QTech
Workshop.
LE910 (4G)
Vodafone NZ
✓
Spark

2 Degrees
✓
Skinny


CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
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Operation Notes
Cellular IP Data Communications
For this application the CM910 is selected as a communications option on the XL4 Plus RS232A port.
The required configuration is performed in the RTU using the QTech Workbench application.
USB Connectivity
Use the supplied Type A-B USB cable to connect the CM910 to your desktop computer.
A driver needs to be installed to enable the CM910's USB port to become a virtual COM port on your
computer. You will need to install the appropriate driver depending on your computers operating
system. Drivers are available for a wide range of operating systems from Windows XP through to
Windows 8, Mac OS and Linux.
Choose the appropriate driver
to download from:
http://www.ftdichip.com/FTDr
ivers.htm
Once the FTDI driver is
installed the COM port
number can be found using
device manager.
DATRAN SMS Direct Operation
Explore the DATRAN server and double click the “SMS Direct” application.

CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
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Key configuration for the CM910 is under the “Modem Settings” tab:
Modem Type : QTech Cellular Modem
Com Port : Either physical or USB virtual comm port as shown in device
manager e.g. COM55
Port Settings : 115200,n,8,1
Call Centre : Select the applicable number for your GSM Telco provider.
New Zealand Vodafone:
[phone]
Australia Vodafone:
[phone]
New Zealand Spark:
[phone]
New Zealand 2 Degrees:
[phone]
Please refer to the DATRAN VI help for specific configuration for SMS Direct.
Status Indicators
The CM910 modem has two status LED’s:
Yellow LED = Status
The operation of this LED depends on the mode of operation.
SMS Direct Mode
The LED is being controlled by the modem
Fast Flash – searching for cellular network
Slow Flash – connected to the network & ready for use
XL4 RTU Cellular Data Mode
The LED is being controlled by the RTU
Fast Flash – searching for cellular network
Slow Flash – connected to the network and ready for use
ON the modem has a data connection to DATRAN base
station
Green LED = Power
ON the modem has power

CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
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Technical Details
Operating Voltage1 : 12 – 24 Volts DC
Power Connector : 2.1mm DC Socket, centre pin positive
Operating Current : ~14mA @ 12V
~10mA @ 24V
Antenna2 : 50Ohms, SMA connector
USB Port3 : Type B socket
RS232 Port4 ` : DB9 female connector
Operating Conditions : 0 - 70C
90% humidity, non-condensing
Case Size : 112 x 75 x 25mm (Overall)
Weight : 261 grams (with supplied antenna)
Mounting Holes : Qty 4x M4 mounting holes at ~102 x 50mm centres
RSM SCN : R-NZ
Modem specifications : 3G bands (MHz): B1(2100), B5(850), B8(900)
4G bands (MHz): B1(2100), B3(1800), B5(850), B8(900), B28(700)

CM910 Cellular Modem– User Guide
© 2020 QTech Data Systems Ltd
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Warranty
The CM910 hardware and software is covered by QTech Limited Warranty Agreement and software
End User License Agreement, respectively.
Please refer to the QTech Limited Product Warranty Agreement, which may be downloaded from
the QTech website: www.qtech.co.nz
QTech Data Systems Limited does not warrant the suitability of this product for any particular
application as the conditions in which it is used are beyond our control. This is not withstanding
warranty of merchantability.
Additional Information and Support
If you have problems try the following:
 Visit the QTech web site for application notes and guides
 Refer to the troubleshooting section if one is present in this document
 Contact the support desk at [email protected]o.nz
 Phone the support desk, contact details at beginning of this document
Copyright 2020 QTech Data Systems Limited, all rights reserved.