J.P. Instruments EDM 960 Twin ICA Instructions - Manual (Page 4)

EDM-960 Instructions for Continued Airworthiness Rev A
Date 4-8-2014 Page 4 of 6
2.1 Display Unit Pn 790000-C
The EDM-960 receives, processes and displays the Serial data on a VGA TFT color display. In
addition, the EDM-960 receives GPS data. The EDM-960 also transmits fuel flow and OAT data
to a GPS and controls the external Master Caution Message Center (RAD) Remote Access Display.
2.2 Data Acquisition Unit (DAU) EDM-950
The EDM-950 is a 5.25" x 5.25" x 1.75" module that incorporates two 26-pin, two 15-pin and one 9-
pin D-sub connectors. The EDM-950 incorporates 32-temperature channels, 6-high impedance
pressure channels , 2-amp channel, 2 Frequency (RPM and Fuel Flow) channels, 4-capacitive fuel
level channels, 4-resistive fuel level channels.
The EDM-950 channels convert signals from the probes, transducers and sensors to a digital
format. This data is transmitted to the Display PN 790000-C via three wire Serial Bus.
The EDM-950 is FAA, TSO and STC approved, and is installed per J.P.Instruments Inc.
installation instruction report 909.
2.3 Harnesses
The extension cables route the signals from the probes, transducers and sensors to the DAUs.
These extension cables are FAA approved. The installation of these extension cables are per
J.P.Instruments Inc. installation instruction report 909.
.
2.4 Probes, Transducers and Sensors
These components are used to measure pressures, temperatures, fuel flow, volts, amps, fuel levels
and many other engine and aircraft system functions. The analog signals produced by the
transducers and probes are routed through the extension cables to the various EDM-950 inputs.
These probes, transducers and sensors are TSO approved and currently are used on other
J.P.Instruments Inc. STC'd, TSO'd products. The installation of these probes, transducers and
sensors are per J.P.Instruments Inc. installation instruction report 909.
2.5 EDM-960 System Parts List
See section 35 Component Parts List in Report 909 Installation Instructions
3.0 Applicable Documents
The following documents are listed for reference only.
Each document is applicable only to the extent specified herein.
Report 909 EDM-960 Installation Instructions