You need the Keyspan USB serial adapter – model# USA-19HS. – You can purchase on by clicking on this link: Keyspan Adapter You connect this to the 9-pin black PC downloading cable that came with you EDM. Be sure to load the drive on the CD that came with your Keyspan.
Keyspan is the only USB serial adapter we recommend with our PC cable, software, and equipment. DO NOT USE BELKIN; DYNEX; IO-GEAR, ETC. -THEY DO NOT WORK.
What are the pin assignments for the black PC Interface cable?
For the EDM-700/800/760:
The mating connector is a 9 pin D subminiature female. Pin#2 is signal and pin#5 is ground.
The connector is a 2.5 mm ID, 5.5 mm OD.The outer barrel is connected to pin #5 of the D connector (ground) and the inner barrel is connected to pin # 2 of the D connector (signal).
For the EDM-900/930:
DB 9 Connector:
Tip = power
Middle section= signal
Lower shaft = ground.
DOWNLOADED FILE IS : U000000.JPI —OVER 200 KB
NO HEADER FILES – DO YOU HAVE AN OLDER EDM THAT IS 4+ YEARS OLD? YOU WILL NEED TO CHANGE TO “FAST Y”. (‘FAST’ LOCATED UNDER ‘DUMP’ SAME AREA AS DATE, TIME, AND TAIL NUMBER.) EDM NEEDS TO BE SET TO HIGH BAUD RATE – 19,200.
To Check for this FAST feature:
1. Go to pilot program mode (Hold both buttons to see PROGRAM).
2. Tap STEP until you see DUMP? N.
3. Hold both buttons until you see RECORD TIME 6.
4. Tap STEP until you see FAST? N. Tap LF to change N to Y.
5. Tap STEP until you see END Y. Tap STEP to exit.
**If you do not see FAST, then the EDM is set at 19,200. You’re OK.
The ‘green‘ light on USB Download Box does not come on.
The box does not ‘see’ the USB2 flash drive. The flash drive is possibly faulty. If you have another USB2 type drive, give this a try. The ‘green’ light should come in a few seconds.
**Make sure you also unplug the power of the Box and re-initialize power to it when ready to plug in the other drive.
DUMP NEW: will transfer only data ‘newly’ recorded since you last downloaded.
DUMP ALL: will transfer all the data that is in the EDM’s memory.
**In both cases, NO data is erased.
*[In older EDM software, it may have the SAVE? ‘N’ or ‘Y’ setting. Choosing ‘Y’ will reset to zero the percentage (%) of memory filled since the last flight. SAVE? N will not reset it to zero. NO DATA WILL BE ERASED. Only doing a factory ‘reset’ to the EDM will do that.
The EDM starts downloading, counting from 98 or so, then stops at around 95. Locks up at 95 or whatever number. Will need to come in for repair and software upgrade.
Make sure you are using the latest Eztrends. Also make sure the correct COM number used by your cable is also used in the ‘Port Name’ field of Eztrends ‘COM Port Detection and Selection’ window. Make sure the EDM itself is ‘counting down’. Do not use Belkin, Dynex or IOGear USB serial adapter cables. If all is correct as above, then proceed by checking the download port and serial cable.
To check center pin on download jack: Should have around a -7 to -9 volts. You can plug in the black PC serial cable and check this. Pin# 2 is signal and pin# 5 ground. Put paper clips in these two pins for your digital voltmeter. Now get the EDM to DUMP ALL and tap the Step button. You should see this neg voltage(-7 to -9) go toward the more positive side – even a positive number. It should fluctuate. This will show that the jack and PC serial cable are good. The issue now is with the USB adapter cable(if not one of the above mentioned) or the computer.
Do you have the latest EzTrends software? If not, please uninstall you ‘older’ version and download the latest release of Eztrends software. To download the latest software, go to:
USB MEMORY BOX DOWNLOADING INSTRUCTIONS
These instructions are for those who have the Internal USB download option in their EDM.
After the EDM has finished its Self Test and after tapping the ‘Step’ button to get past the “Fill? N” prompt (if a FF model) – insert the USB flash drive. Now the EDM will automatically go to PROGRAM and then to DUMP NEW after a few seconds. Tap the ‘LeanFind’ button to choose either ‘DUMP NEW’ or ‘DUMP ALL’. Now tap the ‘Step’ button to start the download. You should see the EDM counting down if your EDM’s memory is full and you choose DUMP ALL. After it has finished you will see “WAIT USB”. Wait 5 seconds or so until you see “DONE” on the EDM. This message will last about a second or two. When the word ‘DONE’ disappears and the EDM goes back to displaying normal temperature data, you can then pull out the flash drive. Use Eztrends (*) software on you home or office PC to plot you flight data.
* Go to: https://www.jpinstruments.com/technical-support/software-downloads/to download the latest Eztrends software. Be sure to stay on-line while you install it.
If you have had the USB download port installed on the EDM, make sure you are following the procedure below. Also make sure that the EDM and flash drive are operating as below:
Make sure no data is on the USB Flash Drive – start with a clean drive. Also make sure the drive is fully inserted into the EDM’s USB port.
Now after the EDM has finished it’s Self Test and after tapping the ‘Step’ button to get past the “Fill? N” prompt(if a fuel flow model) – put in the USB flash drive. You should see the redlight come on the flash drive – blinking briefly. [This LED light on the USB2 drive is very small, and is located at the top of the blue plastic part of the drive.] Once the drive is fully inserted, the EDM will automatically go to PROGRAM and then to ‘DUMP NEW’ after a few seconds. Tap the LeanFind button to choose ‘DUMP ALL’. Now tap the ‘Step’ button to start the download. You should see the EDM counting down and the USB drive LED flickering. After it has finished downloading, you will see “WAIT USB” on the EDM. The USB drive will blink once. After you see it blink, then wait 5 seconds or so until you see “DONE” on the EDM. This message will last about a second. Once that disappears and the EDM is showing temperatures, you can then pull out the flash drive.
** Leave the round data port on the P1 connector(EDM-700/800) and P3 connector(EDM-760), and make sure it is not shorted or your download will fail.
Parallels – Yes.
Boot Camp — Yes this will work – start up in Windows mode.
How to use Hyper Terminal to capture data off the EDM and/or troubleshoot possible cable problems.
To do this:
For the EDM-700/800 only: (Not able to do with 760 – no RECRD feature. )
1) TURN ‘RECRD’ TO ‘N’ (For NO.) * [see FAC LIM settings in Pilot’s Guide.]
2) HOOK TO ‘HYPER TERMINAL’ – 9600 BAUD RATE.
SENDS INFORMATION EVERY SIX SECONDS, COMMA SEPERATED VARIABLES – EVERY 50 LINES OR SO WILL SPIT OUT A ‘HEADER’
Center Pin: —————- 2.5mm (Center pin(sig) -5v to -7v)
Mating Plug O.D: ——— 5.5mm;
Thread size: ————— 08 x .75mm
Washer: ——————— .315″ I.D, .394″ O.D. ( Nickel plated steel )
Nut: ————————– .065″ I.D. .394 O.D. across the flats.
Max panel thickness: — 1-3mm;
Panel cutout: ————– .330″
For further information:
These ‘Instructions’ are in a .pdf formate so you can easily print this out. They will tell you all you need to know on how to download the EDM, plus give you important information on USB serial adapter cables that will work and not work with your EDM. It also contains helpful ‘troubleshooting’ tips you may need.