A: INTRODUCTION
The Polycom® HDX 4500 is a self contained desktop High Definition (HD)
videoconferencing system with a maximum picture resolution of 1920 x 1080 pixels
(1080p) at 30fps. It is the highest specification model in Polycoms HDX 4000
series of conferencing solutions. The system comprises a 24‖ picture monitor,
CODEC, camera, microphones and loudspeakers integrated into a single desktop
unit. Compatibility with other H.323 and SIP CODECs is achieved across a range
of resolutions from SIF (352x240 pixels) up to 1920 x 1080 depending on the
capability of the remote CODEC and the connection bandwidth.
Available options include:
1080p resolution
4 Site Multipoint Conference unit (MCU)
The systems supplied for evaluation included the 1080p option only.
HDX 4500 Feature Summary:
A high definition videoconferencing system which supports variable resolutions
up to a maximum of 1920 x 1080 pixels (1080p) at 30fps or 1280 x 720 pixels
(720p) at 60fps.
A single integrated unit comprising: The 24‖ picture monitor, CODEC, camera,
dual microphones and loudspeakers.
An IP CODEC operating at connection speeds up to 4 Mbit/s over H.323
A fixed HD camera with 1920 x 1080 native resolution and a manual privacy
shutter feature.
Dual monitor support.
Supports H.261, H.263, H.263+, H.264 and H.264 High Profile video coding.
Supports G.711, G.722, G.722.1, G.728, G.729A, Siren 14 and Siren 22, audio
coding including Polycom® StereoSurround™.
External microphone input
Stereo headphone output
DVI PC data input
Stereo analogue audio input for connection of PC audio
Stereo-surround audio
Far-end camera control
H.239 second HD video connection with up to w1080p (1920 x 1080) resolution
Optional four site internal H.323 MCU with either continuous presence or voice
switched operation
AES Encryption
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