Help with the programming of the Aselsan repeater.

[E74D]

Hello guys.

So, for almost 10 years I have S4441 VHF 100W repeater, made in Turkiye by Aselsan company! It is military grade product, superb equipment. Since day one I was told that programming cable and software are going to be very difficult to find.
Recently I got software TTP4400, version 1 and version 2 and I dont know are there any other versions of this software! The program itself say it is used for this repeater series (4441 to 4445 models).

So, since I did not have programming cable and google could not help at all, I decided to see what is inside of the TT control of the repeater itself !

The board is covered with silkscreen so traces are not visible! There is RJ45 female connector and programming is probably done on that connector. I made a schematic of the wiring between RJ45 and interface inside. Since there is MAX242 IC already inside this control unit in the repeater, I assume that original programming cable dont have any component inside it, that make level shifting and converting. Only thing is to connect the wires the right way between Serial port and RJ-45!

So, I made cable according to the schematic and I was able to read the repeater but I can not write anything back. I have error message that say " The programmer used is not suitable for the device!" So, I am not sure why is this happening, is it problem with the cable or software is not right! I am not sure what is programmer? Software probably!?

I am not sure what am I supposed to do with those pins 5 and 6 of the RJ45 programming connector? Since they are coming out from the CTS and RTS lines of the PC16552 chip, I tried to connect them to the same pins of the RS-232 port of the PC but there is no change. (RTS to the RTS and CTS to the CTS)

Do you guys know is there anything I am doing wrong here and am I missing something here? Do I have to short some pins of the RS 232 port, like I see sometimes on the other schematics? For example int Motorolas RIB and other cables also.

Photos are in the attachment. Feel free to write anything. Thanks in advance!
73 de E74D.

 

[RFI-EMI-GUY]

I think the RTS/CTS need to be used either by looping them or from the computer itself. The purpose to keep from writing errors if the computer and radio are not synched. You have a danger of corrupting the radio codeplug. It sure would be helpful to locate the wiring of the original cable. I have found with many LMR products here in the US that RX and TX data * and ground is sufficient to communicate. The looping is done at the computer end with RIB box. I use a Motorola RIB BOX to program all sorts of LMR radios using only TTL out RX TX and Ground. Be sure to back up a good, error free codeplug.

Edit: * Actually most LMR radios have TX and RX data on same line and toggle it as required as a TTL bidirectional bus.

Maybe YOUR RTS and CTS need to be transposed between computer and radio?

Nice repeater by the way. Perhaps it is private labeled, sold elsewhere under different name.

What is RTS / CTS Hardware Flow Control? - Brainboxes

RTS / CTS Flow Control is another flow control mechanism that is part of the RS232 standard. It makes use of two further pins on the RS232 connector, RTS

www.brainboxes.com

Serial Port Programming Part 9 - Hardware Flow Control - RTS,CTS

What is Flow Control? Technically, flow control is a mechanism in which receiver can control the transmission speed. This is done in case...

embeddedguruji.blogspot.com

 

[E74D]

I think the RTS/CTS need to be used either by looping them or from the computer itself. The purpose to keep from writing errors if the computer and radio are not synched. You have a danger of corrupting the radio codeplug. It sure would be helpful to locate the wiring of the original cable. I have found with many LMR products here in the US that RX and TX data * and ground is sufficient to communicate. The looping is done at the computer end with RIB box. I use a Motorola RIB BOX to program all sorts of LMR radios using only TTL out RX TX and Ground. Be sure to back up a good, error free codeplug.

Edit: * Actually most LMR radios have TX and RX data on same line and toggle it as required as a TTL bidirectional bus.

Maybe YOUR RTS and CTS need to be transposed between computer and radio?

Nice repeater by the way. Perhaps it is private labeled, sold elsewhere under different name.

What is RTS / CTS Hardware Flow Control? - Brainboxes

RTS / CTS Flow Control is another flow control mechanism that is part of the RS232 standard. It makes use of two further pins on the RS232 connector, RTS

www.brainboxes.com

Serial Port Programming Part 9 - Hardware Flow Control - RTS,CTS

What is Flow Control? Technically, flow control is a mechanism in which receiver can control the transmission speed. This is done in case...

embeddedguruji.blogspot.com

Hi. Thanks for reply.
Maybe this rx , tx and gnd pins are enough and maybe I just need another CPS :/

So, here is the info from another forum.

"Thanks for reply.
Thanks for correcting my drawings about GND pins. I forgot to add them on the schematic but those were connected in my testing.

So, I tried both ways. "RTS on the programmer should connect to CTS on the PC, RTS on the PC should connect to CTS on the programmer."
Also tried this: "Optionally, you can also tie RTS back to CTS on both devices. You won't have actual flow control, but it should work, assuming the PC doesn't just overflow the programmer."
Unfortunately both ways dont work. Same error is still there. I can not write the data into the device, with the message that programmer used is not suitable for this device.

Please, can you explain a bit more about this: "... assuming the PC doesn't just overflow the programmer."
Maybe some port settings should be done on PC or something else?
Thanks.

 

[RFI-EMI-GUY]

you might inquire here:

Anasayfa - ASELSAN

Anasayfa-ASELSAN

www.aselsan.com

 

[E74D]

you might inquire here:

Anasayfa - ASELSAN

Anasayfa-ASELSAN

www.aselsan.com

Sorry for late response. Yes I am aware of that option but there are few reasons that makes me not to do that. Anyway thanks.