Wayne State has looked at some of these solutions recently. The two connectivity options for most seem to be (a) PTP wireless between the projector and client, and (b) projector connects to a configured SSID. We rejected the PTP configuration, because we cannot imagine that the presenter would be happy to sacrifice her/his network connectivity (too many presentations include URLs or other external content). The problems with having the projector connect to the SSID include (a1) the fact that the projectors (to date) have no way to authenticate, other than being known MAC addresses, and (b1) the client software and the projectors that we've looked at require L2 connectivity, as discovery between them is based on broadcast (multicast?). One question we've asked the community interested in these is "So, when Distinguished Presenter from Big Name Institution arrives moments prior to presentation time, how amenable are they when you tell them they need to install this (client) software on their laptop?" And, does the client _work_ on their laptop?

Peter Murphy
Network Engineer
Wayne State University
[EMAIL PROTECTED]

Richard Boys wrote:
We use an Epson system which has an Ethernet port and uses our existing wireless network. Works pretty good. Our systems are at least two years old so I imagine the newer systems are better.

Rich

On Mar 11, 2008, at 8:50 AM, Lee H Badman wrote:

We have a growing number of faculty that would like to use wireless projection systems, where a tablet or laptop PC directly talks top a projector on private network and client software.

Often, these are very ad hoc- the individual has their own projector and wants to buy some device like this (just one example) http://www.lindy.co.uk/80211g-wireless-vga-projector-server/32499.html to pop into service wherever they happen to be. Among the concerns that these things bring is that they tend to have fixed power that is far too strong for the area they serve, and in a dense wireless microcell environment they can be disruptive.

We have cobbed together some solutions where we provide an IOS-based AP at low power as the “wireless gateway” (grandiose term) in some of these scenarios, but am wondering if anyone has found an off-the shelf presentation system that has variable power on the wireless side and is a more “enterprise” fit?

Regards-

Lee



Lee H. Badman
Wireless/Network Engineer
Information Technology and Services
Syracuse University
315 443-3003

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