Installation Guide Manual

EFIS-D10 Installation Manual
EFIS-D10 Installation Guide Doc Num: 100006-000 Rev. C
9/11/2003 Page 11 of 24
RS232 PC Communication Cable Wiring
In order to connect to your EFIS-D10 to your PC, as
required for calibration and checklist entry, you must
have the RS232 PC communication harness wired to
a convenient location. From this location, you can
allow for a longer extension serial cable to reach the
distance to a PC for calibration and configuration
purposes. The following table outlines the three
connections that must be made to allow
communications between the EFIS-D10 and a PC.
The diagram at right shows you the pinout of the
female D-9 connector which will connect to the
standard serial port on a PC. Please refer to the following section on recommended wiring
practices for further information.
Pin # on EFIS-D10
female DB-25
Pin # on RS232 female
D-9
Pin function
9 5 Signal ground
10 2 EFIS-D10 transmit / PC receive
22 3 EFIS-D10 receive / PC transmit
EDC-D10 Communication Cable Wiring (Optional)
Like the RS232 PC Communication cable, the cable for communication with the EDC-D10
remote mount compass requires a cable that terminates in a standard female D-9 connector as
pictured above. The following table outlines the four connections that must be made to ensure
proper communication between the EFIS-D10 and the EDC-D10 remote mount compass.
Pin # on EFIS-D10
female DB-25
Pin # on EDC-D10
female D-9
Pin function
11 3 EFIS-D10 transmit / EDC-D10 receive
12 6 Switched Power (16.8 Volts)
23 4 EFIS-D10 receive / EDC-D10 transmit
24 1 Signal Ground
Correct wiring installation can be easily verified once completed. Power on the EFIS-D10 with
the EDC-D10 connected to it. Observe the displayed heading and then hold one of the earpieces
of a headset near the front of the EFIS-D10. If the EDC-D10 is correctly wired, you should see
no change in the displayed heading when the headset earpiece is near the EFIS-D10. If you see a
substantial change in heading, there is a communication problem between the EFIS-D10 and the
EDC-D10.