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1. Plug the RS-232 Cable into your laptop computer and into the MUX-8A RS-232 Port on your
aircraft instrument panel.
2. Turn the aircraft power on.
3. Run the Data Recording Software program (DRS-1) on your laptop.
a. Verify Date and Time.
b. Setup the file name.
c. Select the Com. Port.
d. Push the Control Switch to the "DOWNLOAD" position and hold. When "READY" shows on
the DRS-1 top screen, release the Control Switch. The Data Recorder will download all of the
MUX-8A stored data to the designated file on the laptop. If the Data Recorder's memory is
full, it will take approximately 25 minutes to download and process all of the data (depending on
the speed of your P.C.). While the data is being downloaded the Record Light will blink. When
the downloading of data is complete, the DRS-1 status screen will say "Processing Data" and
the Record Light will stop blinking. After the data has been processed, the DRS-1 status
screen will say "Download Completed." Pushing the Control Switch to the "BURST" position
will stop the download and start the processing of data.
4. When finished, turn off the aircraft power and exit the DRS-1 program.
Download Data Format
Download Data Format
Download Data Format
Download Data Format
Download Data Format
Data is downloaded beginning with the oldest data, followed by the newest. The data is organized in
records. Each line represents a record. A comma is used to separate each field in a record. As an ex-
ample, one channel on a Data Recorder was connected to a UBG-16 and one sample record (shown below)
was generated.
Start of a record. Shows
date and time (to one sec.)
Event Warning Line
(can read: "(OFF)",
"OFF", "(ON)" or "ON"
Channel #6 EGT and CHT
RPM Data (2430 rpm)
Manifold Pressure Data (24.2 In Hg)
Channel #1 EGT and CHT
12/21/99 16:03:15,OFF,1456,0356,1420,0362,1487,379,1412,0321,1461,0350,1497,0407,2430,0242
If an error occurs on any channel due to a problem in an instrument or data line, "ERROR CH1",
"ERROR CH2", "ERROR CH3", etc. will be placed in the record, indicating on which channel the error
occurred.
