I am attempting to run my new ALS-1306 with the RS-232 remote port for the first time. I am running a Flex-6400 so I have 2 options. I can run straight off the RS-232 port on the computer using DDUtil. Or I can use a FTDI Chip USB to RS-232 from the back of the Flex.
Here is the interesting part. I have tried BOTH methods with a home made cable. The cable has the DB9 computer end using pins 2,3 & 5. The DB9 on the Amp end is using pins 3,4 & 6. TX and RX are reversed. In both scenarios the amp has both the PA and REM lights flashing indicating improper cable or data. The interesting part is that the AMP actually changes to the correct radio band and briefly lights the appropriate band LED then the band LED goes out. I am close but something is a miss.
Is the problem with the cable or does the AMP have an issue? I have checked continuity from the DB9 Amp pins 3, 4 and 6 to the RJ1-A plug on the Amp control board. Not sure what to try next. Any ideas?
TIA! 73 de Dan KG0AQ
I can't answer the question about whether it is the cable or the AMP, but I can say that mine is working fine. I wimped out and got the Ameritron cable for the Kenwood radios and I am using a null modem FTDI cable from Amazon. https://www.amazon.com/gp/product/B008634VJY/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 .
I do know, as you probably do as well, that not all FTDI cables are created equal. I tried a couple that didn't work. The combination I am using is one suggested by someone of the forum. I am sorry but I don't remember the original poster. I am using the 6600M's USB ports to control both my ALS-1306 as well as a SteppIR Big IR and they both are working great. Good luck.
Wendell - N4VLK
Thanks for the quick reply. I ruled out the FTDI cable because I get the exact results from a "real" RS-232 port using DDutil. Do you know the pinout on your kenwood cable db9 to db9? I received most of my pinout info from older conversations on this support reflector. I have tried other pinout combinations and I only get flashing lights. At least I get band switching with the current pinout, but the REM and PA lights are still flashing.
73 Dan KG0AQ
I pulled the cover on the 1306 end ( the Flex end was molded) and checked the pins with a meter and it appears to be as follows:
1306 (end) Flex (end)
3 ----------------- 2
6 ----------------- 5
7 ---| 7 & 8 on 1306 end
8 ---| are bridged.
So... it appears only two wires are necessary since the 1306 is only a listening device. With the Ameritron cable, I did have to use a gender changer. Perhaps bridging 7 and 8 will cure the problem, but then again the bridge might be necessary for one of the two other cables coming from the 1306 on the Ameritron cable. Anyway, it won't hurt to try.
Wendell - N4VLK
Read down and you will see a post from wx7y that explains the cable wiring.
I followed that tread from the start and wired my cable exactly as WX7Y explained.
The easiest is the FTDI USB to RS-232 UT232R200.
Mating to the UT232R-200 FTDI USB to Serial adapter (Computer or Radio) end of the cable
AMP End Radio End
DB9F on the AMP DB9F, mating cable to the FTDI UT232R200 cable
3=RX Data (reversed so NO Null Modem adapter required) --- 2=RX Data
4=TX Data (reversed so NO Null Modem adapter required) --- 3=TX Data
6=Ground --- 5=Groundend quote"
However, my PA and REM led continues to flash with that exact pinout? Hence, my issue still exists.
73 Dan KG0AQ
How ever I do recommend you buy the serial adapter from FLEX. Might be a little bit more money but it eliminates a lot of grief. Not all adapters work as promised. A good friend fought for a few months and then relented.
Kc4vfi , Frank
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