X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=doc%2Finstallation.inc;fp=doc%2Finstallation.inc;h=d390551efe319733aaf74641c8783040c668c56f;hp=32d819845319c8351d65543537ec55a748feef6d;hb=992c0eab6275cec7d5035b99952537fd7ece2ed4;hpb=b030dfb3df859b3b3cb9c666394f315edcd11f49

diff --git a/doc/installation.inc b/doc/installation.inc
index 32d81984..d390551e 100644
--- a/doc/installation.inc
+++ b/doc/installation.inc
@@ -5,11 +5,14 @@
 	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
+	nominal.
+	ifdef::telemini[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
+	The battery connectors are a standard 2-pin JST connector; you
+	can purchase suitable batteries from the any vendor selling
+	Altus Metrum products. 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
@@ -20,7 +23,15 @@
 
 	[WARNING]
 	Check polarity and voltage before connecting any battery not
-	purchased from Altus Metrum or Spark Fun.
+	purchased from Altus Metrum.
+
+	[WARNING]
+	Spark Fun sells batteries that have a matching connector with
+	the correct polarity. However, these batteries include an
+	integrated current limiting circuit. That circuit will cause
+	the battery to shut down when firing the igniter circuit. Do
+	not use these batteries unless you remove the current limiting
+	circuit.
 
 	By default, we use the unregulated output of the battery
 	directly to fire ejection charges.  This works marvelously
@@ -35,12 +46,18 @@
 	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.
+	ifndef::telemini[]
+	The screw terminal block is also used for the power switch leads.
+	endif::telemini[]
 
+	ifdef::telemini[]
 	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.
+	endif::telemini[]
 
+	ifdef::radio[]
 	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
@@ -49,3 +66,4 @@
 	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.
+	endif::radio[]