doc: Lots more conversion from docbook to asciidoc

[fw/altos] / doc / installation.inc

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+== Installation
+
+       A typical installation involves attaching
+       only a suitable battery, a single pole switch for
+       power on/off, and two pairs of wires connecting e-matches for the
+       apogee and main ejection charges.  All Altus Metrum products are
+       designed for use with single-cell batteries with 3.7 volts
+       nominal. TeleMini v2.0 and EasyMini may also be used with other
+       batteries as long as they supply between 4 and 12 volts.
+
+       The battery connectors are a standard 2-pin JST connector and
+       match batteries sold by Spark Fun. These batteries are
+       single-cell Lithium Polymer batteries that nominally provide 3.7
+       volts.  Other vendors sell similar batteries for RC aircraft
+       using mating connectors, however the polarity for those is
+       generally reversed from the batteries used by Altus Metrum
+       products. In particular, the Tenergy batteries supplied for use
+       in Featherweight flight computers are not compatible with Altus
+       Metrum flight computers or battery chargers.
+
+       [WARNING]
+       Check polarity and voltage before connecting any battery not
+       purchased from Altus Metrum or Spark Fun.
+
+       By default, we use the unregulated output of the battery directly
+       to fire ejection charges.  This works marvelously with standard
+       low-current e-matches like the J-Tek from MJG Technologies, and with
+       Quest Q2G2 igniters.  However, if you want or need to use a separate
+       pyro battery, check out the “External Pyro Battery” section in this
+       manual for instructions on how to wire that up. The altimeters are
+       designed to work with an external pyro battery of no more than 15 volts.
+
+       Ejection charges are wired directly to the screw terminal block
+       at the aft end of the altimeter.  You'll need a very small straight
+       blade screwdriver for these screws, such as you might find in a
+       jeweler's screwdriver set.
+
+       Except for TeleMini v1.0, the flight computers also use the
+       screw terminal block for the power switch leads. On TeleMini v1.0,
+       the power switch leads are soldered directly to the board and
+       can be connected directly to a switch.
+
+       For most air-frames, the integrated antennas are more than
+       adequate.   However, if you are installing in a carbon-fiber or
+       metal electronics bay which is opaque to RF signals, you may need to
+       use off-board external antennas instead.  In this case, you can
+       replace the stock UHF antenna wire with an edge-launched SMA connector,
+       and, on TeleMetrum v1, you can unplug the integrated GPS
+       antenna and select an appropriate off-board GPS antenna with
+       cable terminating in a U.FL connector.