Changes between Version 3 and Version 4 of construction_manual

Timestamp:

Oct 9, 2013, 11:23:45 PM (12 years ago)

Author:

dominic

Comment:

--

construction_manual

@@ -11 +11 @@
 
   Depending on your specific requirements, creativity, etc. there are a lot of different ways to supply your Flarmradar ground station with power. We gathered experience with a few ways and will describe the different setups below.
-  Flarm devices typically run on 12VDV power supply. All Raspberry Pi run on 5VDC. Hence you will have to generate and supply two different voltages within your ground station.
+  Flarm devices typically run on 12VDV power supply. All Raspberry Pi run on 5VDC. Hence you will have to generate and supply two different voltages within your ground station. Use a Micro-USB connector (e.g. [http://de.rs-online.com/web/p/usb-kabel-konfektioniert/7589342/ RS-Online]) to feed the power into your Pi.
 
       - Power supply from grid available
-       - Use two standard power converter (e.g. [http://de.rs-online.com/web/p/steckernetzteile/6666928/ RS-Online]) to supply 12VDC and 5VDC
-    - For battery powered FGS, use a 12V battery as used in most gliders
-    - To connect the FGS to external power supply or battery, use a connector, which is protected against polarity reversal (e.g. [http://de.rs-online.com/web/p/dc-buchsen/7684419/ RS-Online])
-    - To protect your Flarm against over current, a 500mA fuse should be installed in the power supply route to the Flarm (e.g. [http://de.rs-online.com/web/p/sicherungshalter-fuer-frontplattenmontage/3595961/ RS-Online])
+       - Use an external Flarm power converter (e.g. [http://shop.segelflugbedarf24.de/product_info.php?info=p32_Update-Cable-RS232.html update cable]) and a standard cell phone charger to supply 12VDC and 5VDC. [attachment:Flarmradar_GS5.png Schematic]
+       - Use one standard external power converter (e.g. [http://de.rs-online.com/web/p/steckernetzteile/6666928/ RS-Online]) which supplies 12VDC and use a DC/DC converter (e.g. XXX) within the Flarmradar Ground station to convert 12VDC to 5VDC for the Pi. See [attachment:Flarmradar_GS4.png Schematic]. Make sure your DC/DC converter can deliver at least 600 mA of 5VDC to the Pi.
+       - Use an internal power converter, which can supply 12VDC and 5VDC. See [attachment:Flarmradar_GS3.png Schematic]
+      - NO Power supply from grid available = battery power
+       - Use a 12V battery (e.g. [http://de.rs-online.com/web/p/bleiakkus/6603627/ RS-Online]) to power your Flarm and use a DC/DC converter to power your Pi. Make sure, efficiency of your DC/DC converter is high (e.g. XXX) so you don't drain your battery too fast.
+       - All in one power supply: The Mean Well power converter [http://www.meanwell.com/search/ADD-55/ADD-55-spec.pdf ADD-55A] offers 12V and 5V power output which can be run on standard power supply (88-264VAC) when available. If no power line is availble the device features a battery charger to which you will have to attach a 12V backup battery (e.g. [http://de.rs-online.com/web/p/bleiakkus/6603627/ RS-Online]). This battery will power the groundstation when disconnected from power grid. See [attachment:Flarmradar_GS2.png Schematic]
+      
+
+General hints for electrical wiring:
+   - To connect the FGS to external power supply or battery, use a connectors, which are protected against polarity reversal.
+   - To protect your Flarm against over current, a 500mA fuse should be installed in the power supply route to the Flarm (e.g. [http://de.rs-online.com/web/p/sicherungshalter-fuer-frontplattenmontage/3595961/ RS-Online])
+    - Wiring instructions: 12V DC In --> Flarm fuse --> RJ45 connector --> network cable --> Flarm
     - To connect your Flarm to the FGS, we recommend installing a RJ45 connector on the FGS front panel and to use a short network cable to connect the FGS to the Flarm
-    - For pin assignment of the RJ45 please consult [http://www.flarm.com/support/manual/FLARM_InstallationManual_v5.00E.pdf Flarm Installation Manual] 
-    - Wiring instructions: 12V DC In --> Flarm fuse --> RJ45 connector --> network cable --> Flarm 
-    - Alternative way of Flarm power supply: [http://shop.segelflugbedarf24.de/product_info.php?info=p32_Update-Cable-RS232.html update cable]
-   - Raspberry is running on a 5V power supply therefore the 12V power supply must be converted to 5V for the Pi.
-    - Power conversion can be performed using DC/DC converter. Make sure the DC/DC converter can deliver at least 1A.
-    - To protect your Pi against over current, a 500mA fuse should be installed in the power supply route to the Pi (e.g. [http://de.rs-online.com/web/p/sicherungshalter-fuer-frontplattenmontage/3595961/ RS-Online])
-    - Use a Micro-USB connector to feed the power into your pi
-    - Wiring instructions: 12V DC IN --> Pi Fuse --> DC/DC converter --> Micro-USB connector --> Pi 
-    - Alternative way of Pi power supply: A USB charger to power the Raspberry, just make sure it can deliver at least 1000mA
-   - All in one power supply: The Mean Well power converter [http://www.meanwell.com/search/ADD-55/ADD-55-spec.pdf ADD-55A] offers 12V and 5V power output which can be run on standard power supply (88-264VAC) when available. If no power line is availble the device features a battery connection, which serves as backup power source.
+    - For pin assignment of the RJ45-connector on Flarm, please consult [http://www.flarm.com/support/manual/FLARM_InstallationManual_v5.00E.pdf Flarm Installation Manual] 
+  
+   - To protect your Pi against over current, a 500mA fuse should be installed in the power supply route to the Pi (e.g. [http://de.rs-online.com/web/p/sicherungshalter-fuer-frontplattenmontage/3595961/ RS-Online])
+    - Wiring instructions: 12V DC IN --> Pi Fuse --> DC/DC converter --> Micro-USB connector --> Pi
+    - Powering your Pi over the GPIO pins is not recommended. Reasons see [http://raspberrypi.stackexchange.com/questions/1617/how-do-i-supply-power-through-the-gpio here]
   - Flarm <--> Pi Data connection
    - Flarm delivers RS232 signal on its data port. To feed this signal into the Pi, there are presently two alternative ways of doing: