1 system description – Electronics International CGR-30P User Manual

Page 12

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1.1 System Description:

The CGR-30P Glass Panel Engine Monitor installation consists of four major components: the CGR Display,
the Engine Data Converter (EDC-33P), the Probes, Transducers & Modules, and the Wiring and Extension
Cables.

1.1.1

1.1.1 CGR Display:

CGR Display:

The CGR-30P (CGR) display measures 3.25" wide by 3.25" high by 4.36" deep and is designed to be
mounted from behind the aircraft instrument panel.

The 25-pin D-sub connector on the back of the CGR display is used to interface the CGR to the EDC-
33P, Power & Ground, GPS, Master Warning and Caution Lights and Audio Panel (experimental only).

1.1.2

1.1.2 EDC-33P:

EDC-33P:

The EDC-33P (Engine Data Converter, "EDC") converts all of the engine and aircraft system signals
into serial data. This data is transmitted to the CGR display via one wire 5V-Serial Bus. Up to two
EDC’s can be connected to the CGR display. The EDC measures 4.5" long by 3.5" wide by 2.2" high
and is to be mounted on cockpit side of the firewall or in an equipment bay. The EDC reduces the wire
bundle to the instrument panel by over 100 wires. There are three 37-pin D-sub connectors that inter-
face the EDC to the various probes, transducers and modules.

1.1.3

1.1.3 Probes, Transducers and Modules:

Probes, Transducers and Modules:

The various probes, transducers and modules are mounted in the aircraft at appropriate locations.

1.1.4

1.1.4 Wiring & Extension Cables:

Wiring & Extension Cables:

The extension cables and wiring provide the connections from the probes, modules or direct connec-
tions to the EDC inputs. Once the Wiring and Extension Cables are installed into the aircraft they
become semi-permanent. Everything else (CGR, EDC, Probes and Modules) can be easily disconnected
and removed.

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