I would like to validate if possible to connect the Polycom 500 Group, with some of these projectors using the two HDMI ports, the Polycom has two video outputs and projector has two HMDI ports.
the Group supports following monitor resolutions:
Monitor 1: HDMI/DVI:1080p60, 720p60,1080i60 NTSC or 1080p50, 720p50,1080i50 PAL
Monitor 2: HDMI/DVI: 1080p60, 1280x1024p60,720p60, 1080i60, 1024x768p60 NTSC or 1080p50, 1280x1024p60,720p50, 1080i50, 1024x768p60 PAL
For more reference have a look at the Admin Guide, please.