Which RJ45 pins does LOR use?

[EmmienLightFan]

Which RJ45 pins does LOR use for LOR outmof an RS485 adapter and which for DMX?

 

I am trying to create a combo cable, so there is just one Cat5 cable going through the walls, which both networks run on.

Could interferance be an issue? I was on the blue rooms lighting forum, and they say never use cat5 as it will accept interferance and stop working. Is this true or are they just being stubborn?

[Ron Boyd]

If memory serves, 4 and 5 or blue, blue/white

[EmmienLightFan]

Is this for both LOR and DMX or do they use different pins?

 

Thanks

[vdipaola73]

LOR protocol and DMX are on different pins. Crossover cables are made or you could make one yourself. DMX uses 1 and 2 while LOR is 4 and 5.

[EmmienLightFan]

But isn't DMX out of an LOR RS485 on different pins to normal DMX over Cat5.

 

If the pins were the same, my plan is to use 1 and 2 for DMX and 4 and 5 for LOR. I will have a junction box where the two cables come together, and the DMX cable's (From the RS485) blue and blue white connect to the orange and orange white pins on the combo cable, and the LOR cable, from the other RS485 connects to the blue and blue white pins on the combo cable. And at the other end, there will be a cat5 patch panel where it will be split again to two seperate signals, and will go to the devices which require each protocol.

 

Edit: If I did this, would I be able to daisy chain LOR and DMX controllers together? The LOR controllers would ignore the DMX pins, so not get the DMX signal, and the DMX devices ignore the LOR signal?

Edited April 11, 2015 by EmmienLightFan

[viennaxmas]

Not sure this is entirely a good idea. LOR also has power on some of the pins and you might damage your DMX devices... You would have to make sure you do not connect those pins anywhere...

[vdipaola73]

Not the best idea at all. Check at Holidaycoro as they have more info on this.

[EmmienLightFan]

Oh. I suppose two cables will be better then.

[EmmienLightFan]

is the blue or the blue white positive in dmx out an rs485 and is the orange or orange white positive in dmx over cat5? A controller is not working. I just want to make sure I have the correct polarity.

[Max-Paul]

Well as the old saying goes. If it does not work the first time. Try again. It was not LOR but some things at work. A few times I got the A and B wire mixed up and had to swap it to make it work.

[Steven]

LOR uses pin 4 for data+, pin 5 for data-, pin 6 for ground, and pin 3 for +9VDC.

DMX uses pin 1 for data+, pin 2 for data-, and pin 7 for ground.

 

None of LOR's products connect to pins 1-2 or 7-8 of an RJ-45 connector. However, most of their products pass those pins from one socket to another, which allows you to use them for anything you want. In my display, I put CVSS audio through pins 7-8.

 

There is nothing wrong with passing DMX through pins 1-2 of the LOR network cable, but that's usually not very useful, because most displays have LOR and DMX equipment separated anyway.

 

In my display, I have several DMX fixtures (RGB floods & ribbon controllers) that I connect with a single cable which is wired this way: 1&2 is DMX data, 6,7,8 is ground, and 3,4,5 is +12V. I wired the cables that way because if I accidentally plug one of these fixtures into an LOR network, the +9V and ground will be where the fixture expects them to be, so it won't damage anything. Pins 7 and 8 are DMX ground in the standard, and pin 6 is the LOR ground, so it makes sense to tie them together, and use the remaining 3 pins for power.

 

is the blue or the blue white positive in dmx out an rs485 and is the orange or orange white positive in dmx over cat5? A controller is not working. I just want to make sure I have the correct polarity.

Pin 4 (blue) is data positive, and pin 4 (white/blue) is data negative. This is opposite from DMX, in which pin 1 (white/orange) is data positive and ping 2 (orange) is data negative.

[k6ccc]

I have mentioned this before to avoid plugging the wrong cable into something, but it's worth repeating. Use different color cables for different network types. For example, here is my color code file:

 802.11Q = Orange Cat-6

 Internet = Red Cat-5

 .131 LAN = Green Cat-5 (E1.31 lighting)

 .201 LAN = Blue Cat-5 (home primary)

 .202 LAN = Gray Cat-5 (scanner)

 .203 LAN = White Cat-5 (WiFi)

 .204 LAN = Black Cat-5 (Cactus)

 .205 LAN = Pink Cat-5 (Red Cross)

 LOR Network = Purple Cat-5 w/ network number color tape (Regular = 1, Aux A = 2, etc)

 ITW Network = Purple Cat-5 w/ black tape

 Video over Cat-5 = Yellow Cat-5 w/ camera number color tape

 

Make whatever standard works for you, then stick to it...

(Edited to fix the formatting - looked right on my phone on Tapatalk, but not the PC)....

Edited April 16, 2015 by k6ccc