I need to use over 13 IR emitters. Any idea? =)

You have a few options. If your processor is a 4100 you can put up to 4 NXC-IRS4 cards in it. That would give you 16 more IR ports. If you don;t have a 4100 you can get the NXF cardframe which will hold 12 cards or the NXS-NMS shell which will hold 1 card.

you can bypass the 30 meter limit by using ICSNet and ICSHub, then putting IR cards at the location of the Air Conditioners. I havent' done much of that so I'm not the expert, but I know it's possible.

Alternately, if they are in groups and not spread everywhere, you could probably just run AXLink and slave a few Axcent3's in key locations and use their IR ports.

J

When all the devices are the same, and it is unlikely that I need to talk to more than one at any single instant, I'll pass a single port through a relay array to go to the correct device. In your case, I'm not sure it's very feasible because of the total number of devices; add a relay card or an IR card ... may as well add the IR and keep it simple. But it's another option for cases where you have relays but not IR free.

I think the better way do this, is using the NXS-NMS, you maybe need 2 NXS-NMS plus 2 NXC-IRS4, assuming that you have 8 IR port at the central controller and where you put each NXS-NMS you can use all 4 IR outputs

At the installation you may need know how work ICSnet and ICShub, I recommend if you have access to amx university make the "Getting Started with AMX Control", it could be helpful.

Danny Campbell wrote: »

Or you could scrounge up and old Accent3 and use it in slave mode.

I've done taht a few times, but I must admit, I don't like it much. For some reason, NS seems to have trouble loading IR files to a slaved Axcent3 via a NetLinx master. It's intensely frustrating to need to keep trying again and again until they all get through.

DHawthorne wrote: »

I've done taht a few times, but I must admit, I don't like it much. For some reason, NS seems to have trouble loading IR files to a slaved Axcent3 via a NetLinx master. It's intensely frustrating to need to keep trying again and again until they all get through.

Thats true bot not if the slave is an AXCESS cardframe loaded with IRS cards. It will hold 16 IRS cards. And you could slave several together.

Because you said distance is a factor I would use either AXB-IRS4 boxes connected over axlink or you could also use for each conditioner a NI-700 which is connectect through ethernet to the master (master to master comm). The 2nd option is kind of expensive but pretty clean and using standart ethernet cabling.

DHawthorne wrote: »

I've done taht a few times, but I must admit, I don't like it much. For some reason, NS seems to have trouble loading IR files to a slaved Axcent3 via a NetLinx master. It's intensely frustrating to need to keep trying again and again until they all get through.

If you update the firmware in the Axcent 3 to the latest, the IR transfers go smoothly. I have upgraded Axcess systems in some restaurants which had Axcent 3s as masters and slaves. I set them all for slave and add an NI-700 as a master. This arrangement works fine.

I have had a lot more trouble with AXB-IRS4s themselves than I have had with Axcent 3s slaved off Netlinx masters.

Quote:
vining said -
You can also just put multiple different devices on the same IR port and put the different devices on that port in a different ranges of IR slots. IR device 1 = slots 1-30, IR device 2 = slots 40-70..etc. You would just need to make a custom combined IRL.


You can, but only control 2 devices/IR emitters. The current draw on the port is too much with more than two and it will not work. This happens with commercial IR splitters and distributors such as Xantech, RTI etc as well, not just AMX.