249 lines
7.9 KiB
TeX
249 lines
7.9 KiB
TeX
\documentclass[a6paper, 8pt]{extarticle}
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% packages
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\usepackage[margin=12mm]{geometry}
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\usepackage{graphicx}
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\usepackage{multicol}
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\graphicspath{ {./images/} }
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\parindent = 0pt % disable annoying indent on paragraphs
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\begin{document}
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\thispagestyle{empty}
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\begin{center}
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{\huge openCom LTE - User Manual} \\
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LTE connectivity for your Framework Laptop. \\
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\vspace{5mm}
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\includegraphics[scale=0.35]{opencom-lte}
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\end{center}
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\newpage\phantom{a} % blank pages to avoid TOC being on card
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\thispagestyle{empty}
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\newpage
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\tableofcontents
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\setcounter{page}{1}
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\newpage
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\section{Introduction}
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Thank you for purchasing the openCom LTE from Liberated Embedded
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Systems.
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Within your package you will find the following:
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\begin{itemize}
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\item \textbf{1x openCom LTE}
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\item LTE antenna(s) (if ordered)
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\item SMA dust covers (if ordered)
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\item 3x assorted stickers
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\item This manual
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\end{itemize}
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\newpage
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\section{Overview}
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Within this section, we provide an overview of notable aspects of the openCom LTE.
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\subsection{Top}
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\begin{multicols}{2}
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The openCom LTE supports 3 antenna connections, with these being:
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\begin{itemize}
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\item An SMA main antenna for LTE connectivity (J1)
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\item An SMA diversity antenna to enhance connection reliability (J2)
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\item A u.FL GPS antenna for determining location (J3)
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\end{itemize}
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The LEDs D2 and D3 are status indicators, and are covered in the next
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section.
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\columnbreak
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\includegraphics[scale=0.27]{top-circled.png}
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\end{multicols}
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Please note that a GPS antenna is \textbf{not included} with the device, and
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one can only be connected with the top cover disassembled.
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\subsubsection{LEDs}
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\textbf{D3, or the left LED}, is red, and activates when the device is powered on.
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\textbf{D2, or the right LED}, is red, and flashes differently depending on network status:
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\begin{itemize}
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\item Short flashing - searching for cell tower
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\item Long flashing - idle
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\item Quick flicker - data transfer
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%\item Constantly on - voice calling
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\end{itemize}
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\subsection{Bottom}
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\begin{multicols}{2}
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\setlength{\parskip}{0pt} % stop stretching across whole column vertical space
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On the rear side of the device, the SIM slot is present, which
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accepts a \textbf{nano sized} SIM card.
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\vspace{5mm}
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The SIM can be inserted into the slot by pushing it until it clicks. It
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can also be removed by pushing it until it clicks, and it will spring
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out after. You may want to consider using the spudger end of your
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Framework screwdriver to help insert and remove it.
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\vspace{5mm}
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There are many test points present on rear of the device, which are
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documented in the next section.
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\columnbreak
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\includegraphics[scale=0.25]{bottom-circled.png}
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\end{multicols}
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\newpage
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\subsection{Test points}
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\begin{multicols}{2}
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\setlength{\parskip}{0pt} % stop stretching across whole column vertical space
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There are several test points available on the device, which allow you to
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test critical functionality of the device if you so choose.
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These are detailed below:
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\begin{itemize}
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\item TP1 - USB D+ trace
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\item TP2 - USB D- trace
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\item TP3 - GND
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\item TP4 - USB\_BOOT
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\item TP5 - VDD\_EXT
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\end{itemize}
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Note that to access TP1 and TP2, the resistor pads R13 and R14 must be
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bridged with wire or solder, as 0Ω resistors are not provided here.
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\subsubsection{Emergency download mode}
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If necessary, the module can be booted into emergency download mode by
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shorting TP4 and TP5 before powering it up. This will allow you to upgrade
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the firmware of the module over USB. The firmware upgrade can only be done with the QFlash utility from Quectel, which only works on Windows. A download link is provided in Section \ref{sec:Windows}.
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\columnbreak
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\includegraphics[scale=0.25]{test-points-circled.png}
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\end{multicols}
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\newpage
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\section{Installation}
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\begin{multicols}{2}
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In order to use your openCom LTE, you must first connect the external
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antenna(s) to facilitate communication.
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Connect an antenna to the \textbf{J1 port} on the device, which is the
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right external SMA connector. It is screwed on clockwise.
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Although the diversity antenna on the \textbf{J2 port} is optional,
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\textbf{consider also connecting it} to the device in order to ensure an
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optimal internet connection.
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\columnbreak
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\includegraphics[scale=0.2]{sma-circled.png}
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\end{multicols}
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Your openCom LTE is now assembled and ready to go, and can be inserted into
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your Framework Laptop by slotting it into an empty Expansion Card bay.
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\textbf{Remember to insert your SIM card!}
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\newpage
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\section{Usage}
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\subsection{Antennas}
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If you chose to bring your own LTE antennas at checkout, please ensure you
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purchase LTE antennas with a VSWR < 2 for optimal performance.
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Additionally, if you choose to purchase a GPS antenna for your use, ensure it is a passive antenna (active antennas are not supported), with a VSWR <= 2.
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\subsection{Linux}
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On Linux you may use NetworkManager with ModemManager to create a connection
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for your openCom LTE. With the device plugged in, create a new connection,
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choosing "mobile broadband", then progress through the Wizard. If you use
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\textbf{Arch Linux}, there are great wiki articles on the subject.
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\subsection{Windows}
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\label{sec:Windows}
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Download the drivers to interface with your openCom LTE from the following
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link: \\
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\texttt{https://link.liberatedsystems.co.uk/EG95} \\
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Within the archive, you will find the executable file to install your drivers.
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\newpage
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\section{Enclosure}
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\subsection{Disassembly}
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There are two M2 screws on the exterior section of the device which hold on the
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lid. Unscrewing them, you can take the lid off, and the LED columns with it
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(\textbf{don't lose them!}).
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There are just two M1 screws holding the circuit board onto the bottom of the
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enclosure, which when removed allow for the removal of the board. However, we
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do not recommend these screws are removed frequently, as their effectiveness
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will decrease over time if they are.
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\subsection{Assembly}
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Insert the circuit board into the bottom of the enclosure, and fasten it in
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with the two M1 screws.
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Insert the LED columns into their respective holes on the lid (upside down).
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Then, place the bottom part of the enclosure on top of the lid. Finally, insert
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the M2 screws, and screw them into their respective holes on the exterior
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section.
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\newpage
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\section{AT commands}
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For information concerning the available AT commands, please download the
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archive from the following link: \\
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\texttt{https://link.liberatedsystems.co.uk/EG95} \\
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Within, you will find a copy of the AT command manual for your openCom LTE,
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which utilises Quectel's EG95 module.
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\section{Durability}
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Please be careful of the conditions in which you use this device, do not expose
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it to rain or submerge it in bodies of water.
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\section{Warranty}
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Please follow the below URL in order to access information about your
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warranty.
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\\\texttt{https://store.liberatedsystems.co.uk/opencom-lte-warranty}
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\newpage
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\section{Contact}
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If you have any issues with your openCom LTE, please reach out to us. You can
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contact us via email or XMPP at \\\texttt{contact@liberatedsystems.co.uk}.
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\section{Legal}
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Liberated Embedded Systems Ltd. is registered in England and Wales
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(company no. 14722578). Our registered business address is
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Portland House, Bute Street, Cardiff, CF10 5EQ. \\
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We are not to be held responsible if the customer chooses to download
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classified F35 schematics using our product, to build their own in their
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garage.
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\newpage\phantom{a} % blank page to stop printing on card
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\thispagestyle{empty}
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\newpage
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\begin{center}
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\includegraphics[scale=0.35]{opencom-lte-b.png}
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\end{center}
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\thispagestyle{empty}
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\vspace{1.3cm}
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\begin{center}
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\begin{multicols}{2}
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\includegraphics{UKCA-mark.jpg}
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\includegraphics[scale=0.08]{ce-mark.png}
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\end{multicols}
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\end{center}
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\end{document}
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