Electrical

Overview

Device List

CategoryNameDraw
AirframeLanding Light3.2a
Taxi Light3.2a
Strobe Lights2.5a
Beacon?a
Cabin Light0.5a
USB Port3a
AvionicsMGL Xtreme EFIS200mA
iPad Charger?a
Trig TY-21 Com Radio3.2a
Trig TT-92 Transponder3a 1
Trig TN-72 GPS Receiver0.1a
MGL SP-6 Magnetometer120mA
MGL SP-7 AHRS120mA
MGL RDAC XF100mA 2
Stratux ADS-B Receiver1a
Enginee-mag1a 3

Switch List

  • Master - main power, MGL RDAC, MGL Xtreme EFIS
  • Alt. Field
  • Avionics Master - all other avionics
  • Keyed Mag/Start Switch
  • Landing Light (On/Off)
  • Taxi Light (On/Off)
  • Stroble Lights (On/Off)
  • Beacon Light (On/Off)
  • Dome Light (On/Off)
  • Mag 1 Test (On/Off) -- Maybe push button when pressed is off?
  • Mag 2 Test (On/Off) -- Same as Mag 1 Test
1

Trig TT-92 manual does not specify a current draw but for wiring a 3a breaker is suggested.
2: I did not find the MGL RDAC XF current draw in the MGL manual, I found it on the additional information page for Michigan Avionics.
3: Once the engine RPM is above X RPM the e-Mags produce their own power and no longer draw on alternator or battery.

Device Detail

Wiring

Goals

  1. Simple
  2. Engine runs if master is off
  3. Master switch enables the essential bus for engine startup monitoring

General Notes

Master Bus will power:

  1. Essential Bus (direct)
  2. Avionics Bus (through switch)

Essential Bus will power:

  1. MGL Xtreme EFIS
  2. MGL RDAC

Avionics Bus will power:

  1. MGL SP-6 Magnetometer
  2. MGL SP-7 AHRS
  3. Stratux ADS-b
  4. Trig TY-21 Com Radio
  5. Trig TT-92 Transponder

Nomenclature

Breakers have no pin numbers, but for wiring purposes I'll describe pin 1 as Input and pin 2 as Output.

Switches (typically) do not have pin numbers, but for the purposes of wiring I'll describe pin 1 as the common switched pin, pin 2 as option 1, and pin 3 (if DT) as option 2.

Components

Key

  • B: Breaker
  • BS: Bus
  • S: Switch
  • P: Panel Mounted Equipment
  • L: Light
  • O: Other

List

IdPart #DescriptionNotes
R:MSTRMaster Relay (Solenoid)
BS:MSTRMaster Bus
BS:AVAvionics Bus
BS:GNDGround Bus
B:MAG1E-mag #1 Breaker1A
B:MAG2E-mag #2 Breaker1A
B:LNDGLLanding light breaker5A
B:TAXILTaxi light breaker5A
B:NAVNavigation, Position and Strobe lights breaker5A
B:ESSEssential Bus Breaker2.5A
B:AVMiscellenaeous Avionics2.5A
B:COMTY-215A
B:XPDRTT-925A
B:AUXAuxiliary, Dome, USB Charger5A
S:MSTRMaster PowerSPST
S:AVAvionics MasterSPST
S:LANDLLanding LightSPST
S:TAXILTaxi LightSPST
S:STBLStrobe LightsSPST
S:POSLNaviation/Position LightsSPST
S:BCNLBeacon LightSPST
S:DOMLDome LightSPST
P:XTRMMGL Extreme EFIS
P:TY21Trig TY-21 Com Radio (head)
O:TY21Trig TY-21 Com Radio (remote)
P:TT92Trig TY-92 Transponder (head)
O:TT92Trig TY-92 Transponder (remote)

CAN Bus Flow

  1. RDAC
  2. EFIS
  3. SP-6
  4. SP-7

Master Wiring List

XSourceS. LabelWireD. LabelDestination
Power
Bat +R:MSTR:IN
Bat -Firewall Lug
R:MSTR:OUTBS:MSTR:IN
EFIS
BS:MSTREFIS BrkrPwrB:ESS
B:ESSEFIS Pwr22Pwr1
BS:GNDEFIS Gnd22Gnd3,4,9,10
RDAC
B:ESSRDAC Pwr22Pwr8
BS:GNDRDAC Gnd22Gnd5
SP-6
B:AVSP6 Pwr22Pwr6,7
BS:GNDSP6 Gnd22Gnd1,2
SP-7
B:AVSP7 Pwr22Pwr6,7
BS:GNDSP7 Gnd22Gnd1,2
CAN Bus
RDAC
6CAN Bus (HI)22^W/BRDAC CB (HI)EFIS.12
7CAN Bus (LO)22^WRDAC CB (LO)EFIS.13
EFIS
12CAN Bus (HI)22^W/BSP6 CB (HI)SP6.9
7CAN Bus (LO)22^WSP6 CB (LO)SP6.8
SP6
9CAN Bus (HI)22^W/BSP7 CB (HI)SP7.9
8CAN Bus (LO)22^WSP7 CB (LO)SP7.8
EFIS
2ALARM22^WALARM -ALARM ANNUNCIATOR
11OAT22^GEFISOAT Red
7GPS TX24^WELT?
GPSGPS ANTGPS Ant

Configuration

MGL Xtreme EFIS

  • Menu
    • GPS Setup
      • NMEA Output: RS232 COM1
      • NMEA Baud Rate: 9600
    • CO Monitor Setup
      • CO Monitor: CO GUARDIAN - RS232 COM2

TODO

  • Alarm Annunciator Light