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Topic:
S70/NC50 and RS232...
This thread has 22 replies. Displaying posts 1 through 15.
Post 1 made on Saturday December 18, 2010 at 09:13
audiojan
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I have some questions regarding the RS232 with S70 through the NC50... first of all, the cables that Nevo sells are darn expensive... why is that? Just because they can, or is it something special about them? Can you make a serial cable yourself to work with the NC50? One reason is the price, but the big reason is that I would need a 30' rs232 cable from the NC50 to my projector, which of course is not a standard cable...

I haven't started the programming for the NC50 yet (and I've never done a serial controlled installation...), so this could be very interesting...

If anyone has a S70 or Q50 file (both IR and rs232) for any of these, I would certainly be greatful...
Krell HTS 7.1
Oppo BDP-83
DirecTv HR23
DVDO VP30
Pioneer Elite FJP-1 (same as JVC RS-2)
Wadia 830
Post 2 made on Saturday December 18, 2010 at 19:31
Duct Tape
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 there is circuitry inside them.  you will want to order the cables.   To extend them, I use Cat5 and either solder on db9 ends, or crimp on RJ45 ends to use these:

[Link: amazon.com]


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OP | Post 3 made on Sunday December 19, 2010 at 08:32
audiojan
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Thanks Duct Tape. Wouldn't it be easier to extend the cable using a stereo 3.5mm extension cord? That should work as there's only three contacts anyway and all three are straight wired... Or am I missing something?

Decided to purchase the serial modules though... expensive, but I guess you pretty much use them forever... and serial control will make life easy and reliable.
Post 4 made on Sunday December 19, 2010 at 08:59
Duct Tape
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They are not 3 pin stereo phono ends, they are 4 pin ends. I suppose you could find extensions that have 4 pins, like the av adapters on a camcorder.
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Post 5 made on Sunday December 19, 2010 at 16:33
sydinstaller
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They are longer as well.

The DB9 extender is best.
Just remember that there is a distance limitation with RS-232.

What distance do you need and at what baud rate?

D.
OP | Post 6 made on Monday December 20, 2010 at 07:12
audiojan
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I need about 30ft. (from equipment rack to projector) The baud rate is 19200.
Post 7 made on Monday December 20, 2010 at 09:31
Duct Tape
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You will be fine. The lower the baud rate, the longer you can go. I've gone 60 feet @ 115000 with no issues.
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Post 8 made on Monday December 20, 2010 at 17:42
sydinstaller
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Agreed. That should be OK. Just make sure the cable is well away from any possible electrical interference and keep an eye on your bend radius of the CAT5e/CAT6 cable.

D.
OP | Post 9 made on Tuesday December 21, 2010 at 06:42
audiojan
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Thanks Duct Tape and Sydinstaller. I just need to find a RS232 extension cable that's about 20ft long now...

... and of course program the remote. Never done any serial programming, so this will be a learning curve. Any advise? Or if you have a file that contains a serial program, would you mind PM me with it? Always easier to get going when you have some kind of reference.
Post 10 made on Wednesday December 22, 2010 at 13:47
brodyboy
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Hi audiojan. I think you'll really like serial control once you get the hang of it....and that won't take long. The one thing that's a little inconvenient, compared to IR programming, is that you can't just import a whole serial command file as provided by the manufacturer. There's more manual entry involved, one way or another. I generally create a CSV file with the commands and their names and then import that into the NSP. You can also do the manual entry directly into NSP.

The only device that we have in common is the Oppo BD player. If you like, I can try to find my CSV file so you can import it to get you started.
OP | Post 11 made on Wednesday December 22, 2010 at 15:38
audiojan
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If you could Brodyboy, that would be a great help and at least get me started.
Post 12 made on Wednesday December 22, 2010 at 17:29
Duct Tape
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here is an s70 file with DirecTV RS232.  The codes for direct channel access 1-1000 are also in the file.

[Link: mediafire.com]
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OP | Post 13 made on Thursday December 23, 2010 at 11:07
audiojan
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Thanks Duct Tape!

Looks really good and makes my life a whole lot easier... still stuggling to understand the RS232 structure for the Pioneer Elite FPJ-1, where I have some commands in the "normal" RS232 structure and then other commands in binary code... have no idea how to add the binary ones... Also, for the Krell HTS 7.1, I really don't understand the code structure at all... Ex. the command "UP" is UPZ, ok great, is that all I need?! Or do I need any kind of starting command, ending command? Serial programming is frustrating, but I'm looking forward to the control it awards me.
Post 14 made on Friday December 24, 2010 at 16:04
RemoteQuest
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Yeah, RS-232 can be challenging at times. I think the most time consuming part is reading through each manufacturer's specs of how they employed it and trying to digest it. I have seen RS-232 docs from some manufacturer's that were 30 pages!! Talk about a lot of unecessary info sometimes.

In almost every case you will need an ending command, usually a Carriage Return such as CR or \r or /r

NSP3 will let you put that in, in a variety of ways, once you figure out what each manufacturer wants.

In many case you also need an opening bit or two like * or / or whatever the manufacturer says they are using to open the communication.

Dave
RemoteQuest.com
OP | Post 15 made on Sunday December 26, 2010 at 06:10
audiojan
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Ok, so far I have no problem at all with the Krell, which is the one that I thought would give me a problem... The Directv doesn't respond at all to any commands... thinking that the ATEN RS232A USB-Serial adapter might not work even though Directv does specify this one as one that should... The DVDO doesn't work either... frustrating, but I'm going to try the suggestions from RemoteQuest and put in the /r option.... according to the very daunting manuals, it shouldn't be needed, but I've tried everything else, so why not.

Speaking of the DVDO VP30... I only have about half the commands... If anyone has the RS232 commands (preferably in HEX form), that would be fantastic. They really have a VERY complicated manual...
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