Hi Alex

Thanks, we’ll soon see which decisions where wise and which were expensive!

I have the EM3 instructions as a word file that is 8.5MB.
Can I have your address to pm you.
Hopefully your provider can handle that file size.

Could you take a photo of your EM3 so I can see what you have.
From memory all EM3 wiring was to the 4 terminal strips.
There should be:
1. Power and Earth.
2. Serial link to EC2
3. Connections to EM3 head unit
4. All the sensors

I’ll send the file as soon as I have your address

Here is the terminal breakdown of the AQM

Cheers

Steve Izett

AQM   TERMINAL BLOCK ASSIGNMENTS

TERMINAL       SIGNAL                  DESTINATION

TB1-1       N/U                                  NOT USED

TB1-2       FUEL PRESSURE           FUEL PRESSURE SENSOR TERMINAL

TB1-3       GROUND                  AIR DATA SENSOR GROUND  (PIN 2 ON ALL)

TB1-4       N/C                     NOT USED

TB1-5       OUTSIDE AIR TEMP        OAT SENSOR PIN 2 (WHITE WIRE)

TB1-6       OIL PRESSURE SENSOR     OIL PRESSURE SENSOR TERMINAL

TB1-7       COOLANT PRESSURE        COOLANT PRESSURE TERMINAL

TB1-8       O2 SENSOR/MIX           O2 SENSOR LEAD

TB1-9       TAS (OPTIONAL)          TAS SENSOR PIN 1

TB1-10      OIL TEMP                OIL TEMP SENSOR TERMINAL

TB1-11      LEFT FUEL               LEFT FUEL TANK SENSOR

TB1-12      +5 Pwr FOR OAT & air    OAT RED WIRE & POWER AIR DATA SENSORS IF EQUIPPED

TB1-13      ALTITUDE                ALTITUDE SENSOR PIN 1

TB1-14      N/C                     NOT USED

TB1-15      RIGHT FUEL tank         RIGHT FUEL SENSOR or (MAP sensor on non EC3 eng)

TB1-16      COOLANT TEMP            COOLANT TEMP SENSOR TERMINAL



TB2-1 & TB3-1     CHT8              RED,WHITE   J TYPE THERMOCOUPLE

TB2-2 & TB3-2     CHT6              RED,WHITE   J

TB2-3 & TB3-3     CHT4              RED,WHITE   J

TB2-4 & TB3-4     CHT1             RED,WHITE  J   

TB2-5 & TB3-5     CHT2             RED,WHITE   J

TB2-8 & TB3-6     CHT3              RED,WHITE   J

TB2-7 & TB3-7     CHT5             RED,WHITE  J

TB2-8 & TB3-8     CHT7              RED,WHITE   J



TB2-9 & TB3-9     EGT8              RED,YELLOW  K TYPE THERMOCOUPLE

TB2-10 & TB3-10   EGT6              RED,YELLOW  K

TB2-11 & TB3-11   EGT4              RED,YELLOW  K

TB2-12 & TB3-12  EGT1              RED,YELLOW  K

TB2-13 & TB3-13   EGT2              RED,YELLOW  K

TB2-14 & TB3-14   EGT3              RED,YELLOW  K

TB2-15 & TB3-15  EGT5              RED,YELLOW  K

TB2-16 & TB3-16   EGT7              RED,YELLOW  K



TB4-1       OAT BIAS                BLACK LEAD ON OAT SENSOR

TB4-2       LYC. TACH               P-LEAD ON MAG  (Lycoming only, no ec3 controller)

TB4-3       TACH & FUEL FLOW SENSE  FUEL INJECTOR 1 LEAD ON EC3 & FUEL INJECTOR

TB4-4       SERIAL DATA IN          SERIAL OUT FROM EC3(J2-13) or EC2(J1-7)

TB4-5       N/C

TB4-6       N/C

TB4-7       GROUND                  GROUND ON AIRFRAME NEAR AQM

TB4-8       +12 POWER               AVIONICS POWER BUS (SWITCHED)

TB4-9       VOLTAGE SENSE           MAIN POWER BUS  (TO SENSE SYSTEM VOLTAGE)

TB4-10      SERIAL DATA OUT         SERIAL IN TO EC3(J2-12) or EC2(J1-27)

TB4-11      N/C

TB4-12      DISP DATA OUT           PIN 5 ON EM3 DISPLAY CONNECTOR  J1

TB4-13      Vss/GROUND              PIN 17 ON EM3 DISPLAY CONNECTOR J1

TB4-14      DISP DATA IN            PIN 7 ON EM3 DISPLAY CONNECTOR  J1

TB4-15      DISP DATA CLOCK         PIN 6 ON EM3 DISPLAY CONNECTOR  J1

TB4-16      +5 POWER FOR OAT SENSOR RED WIRE ON OAT SENSOR









> On 2 Jun 2018, at 1:13 pm, alex alex.molteno@gmail.com <flyrotary@lancaironline.net> wrote:
>
> Thank you Steve
>
> My EM3 has no DB plug mounted on the side of the box for wiring, like the EC2 has.
>
> I assume we have to solder a ribbon to the board inside and run it out whichever side of the box is convenient for mounting. I suspect I wasn't sure on my mounting location when I bought it, so asked Tracy not to wire it yet. Do you have a pic of that wiring from the board to outside the box?
>
> Tracy gave me a printed manual, I'm just not sure where I put it, I moved a lot of stuff around in anticipation of hurricane Irma last season.
>
> If you have a PDF of the EM3 manual, that would help loads,
>
> Thanks Steve, good luck with getting the Glasair dialed in,
>
> Alex
>
> On Fri, Jun 1, 2018, 11:04 Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
> Hi Alex
> Do you have the EC2 and EM3 install documents?
>
> For the EM3 to talk to an EC2 it needs a serial link which requires the two connections below plus a common earth
> EM3 TB4-4        SERIAL DATA IN             SERIAL OUT  FROM EC2(J1-pin 7)
> EM3 TB4-10      SERIAL DATA OUT         SERIAL IN               TO EC2(J1-pin 27)
>
> Steve Izett
> > On 1 Jun 2018, at 10:44 pm, Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
> >
> > Hi Alex
> > In case Tracy is not around, what do you not understand re EC2 talking to EM3?
> > Steve Izett
> >
> >> On 1 Jun 2018, at 10:33 pm, alex alex.molteno@gmail.com <flyrotary@lancaironline.net> wrote:
> >>
> >> Hi Tracy, are you around FL area still, I need advice to wire up the ec2 to em3, or ill be happy to send the em3 to you as well if that's an option
> >>
> >> Thanks,
> >>
> >> Alex
> >
> >
> > --
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>
>
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