I need to be able to quickly fabricate a serial cable with the following configuration (see attached image).
What is the easiest way to do this? I have a computer hardware store across the street. I have some experience with soldering, but I would rather avoid that if at all possible as I don't want it to be my fault if the cable doesn't work or if it goes bad, since cable making is only a hobby of mine, I am not a professional at it. This matter is very urgent so polish is not required nor requested in your replies.
What kind of cable or parts should I start with?
What steps do I take to configure it properly?
What is the best way to test it?
Another requirement from the spec is (paraphrased): Do not use any terminals other than No. 2,3,5,7, or 8 for any other purpose
Pinout Description for the Serial Cable
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You just described what I have been doing. However, the RTS and CTS must be connected directly on the left side (AU400). I don't have a crimper tool and I need to connect pin 7 to pin 8. I have some cable I could use to accomplish the connection, and I have some D-Sub ends, but I have no way to crimp them cleanly. I'm not really sure what to do other than try to find a crimper tool and so far all the places I have called do not have one.
I would guess what you could do is clip the ends you would want to loopback, take a strand of the RJ45 wire, fold it in half (without pinching the loop too much) it too hard, tuck it back into the cable, and have those two pins connect the loopback you need to connect. it should be good enough for the serial connection, and that way you still get to make a proper cable.
the other option would be to, at some point in the cable, would be to slide some heat-shrink tube over the RJ45, make a cut in the jacket, cut the wires that need to be shorted together, strip them, twist them together (I know you're trying to avoid this, but... if you do it this way it would be best to solder them (but it'd be an easier joint to solder than soldering DB9 pins) and tuck them back over the outside of the jacket in such a way they won't touch, tape them down with a layer of electrical tape, and then put the shrink tube in place -- make sure it's a tight fit.
Those are the best two ways that I can think about doing this on the fly. not exactly pro, but should do the trick.
Yes, you should join them at the left side, but you can do it in left or right side adapter.
I think that on right side is a little bit easyer.
In adapter on the left side you need pins 7 and 8 to be connected at terminal connector.
1.) So you have the posibility to cut the wires of pin pin7 and 8 far enough inside of the adapter, that can be striped and folded together. It won't be so easy because the wires are quite short.
2.) you can take the signal to the adapter on the right side and join wires there. Just connect the pins 7 and 8 on the left side. Cut the pins in right adapter (that are connected to pin7, 8 at left side - you won't need them.), strip the cable and join the wires. Isolate the wires.
Network patch cable leave intact - as it is. You will need no crimper tool.
I Hope I was clear enough.
I hope you managed to find this type of adapter - I have found better picture.
http://www.qvs.com/prodima
On these adapters the wites are log enough, to cut and fold them together also at left side.
You can solder them (better), or simply wrap one around the other.
http://www.lxforums.com/ga
or
http://img.diynetwork.com/
also, this stuff is a reasonable solder substitute. http://www.wireglue.us/
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by: davorinPosted on 2009-11-05 at 11:13:09ID: 25752817
I also hate soldering, so for making that type of custom cables I have used RJ45 to DB9(RS232) adapters and a normal network patch cable. You just put pins into adapter in whatever order you want and at the end close it. You do not need any tool at all. But if you make a mistake, you won't be able to pull pin outside of adapter again.
Example:
http://www.sealevel.com/pr