RS232 DA

julian

Hi,

I am looking for a solution to controlling several projectors(all the same type) at the same time using rs232 . Is there a RS232 D.A. on the market or RS232 over cat5 D.A. that could be used?


Thanks

ericmedley

http://www.digi.com/products/serialservers/digionesp.jsp#overview

this will provide an RS232 connection to a device and then pass it over IP.

It works quite well.
e

TurnipTruck

julian wrote: »

I am looking for a solution to controlling several projectors(all the same type) at the same time using rs232 . Is there a RS232 D.A. on the market or RS232 over cat5 D.A. that could be used?

You should have no problem communicating to multiple projectors, but getting them to talk back to your control system through the DA device will present a challenge.

vining

If you use a IP to Serial adapter like e' suggested you could create multiple IP devices and create an array of these devs and send_strings to the array. You would then have seperate buffers for each projector so you could track and process their responses individually.

Instead of the Digi One though you might consider the SitePlayer serial to IP adapter that Hedberg has posted about since they are less that 1/2 the price of a Digi One. $180.00 vs $80.00 (w/ POE ability & local Power Supply).

Link:
http://netmedia.com/siteplayer/telnet/sptpoe.html

I just ordered a few last night but other forum members have used these for a while and I haven't heard anything negative about them. I know the Digi products are rock solid as are Moxa and others but I'm sure if the SitePlayer wasn't equally as reliable we would have heard. I actually went through the forum posts last night prior to ordering these just to see what was said and it was all good.

Plus going this route still provides you the abiltiy to control the projectors individually if you desire. IMHO this is probably the cheapest and best way to go. An $80.00 upgrade per projector should fit into any budget if you don't have the physical serial ports on the master to do what you need.

Andrew G Welker

Depending on the projectors, you may also be able to talk to them directly over IP, eliminating the need for the IP to RS-232 devices. Most modern projectors support at least PJLINK, with many of the higher end ones supporting the same commands via the ethernet port as they use via the RS-232 port.

Jimweir192

Hi Jules

Blackbox do a 3 and 8 port unit - not cheap - code is DBU-232 & 2328

Cheers

julian

Thank you

Most useful.