Sony PCS-G70S Benutzerhandbuch

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FEATURES
High-Quality Video/High-Speed
Network Connection
The PCS-G70S provides excellent picture quality
over both ISDN (H.320) and IP (H.323) networks and
fully supports the latest non-proprietary ITU-T H.264
video codec standard for maximum customer
confidence and flexibility. When video encoding is in
accordance with the H.263 protocol, the PCS-G70S
supports the 4CIF format at a maximum frame rate
of 30 fps, and when in H.264 protocol, it supports 
the interlaced SIF format at 60 fields per second. 
In addition, the PCS-G70S can achieve a maximum
bandwidth of 4 Mb/s with an IP connection, and up to
2 Mb/s with an ISDN connection using an optional
PCSA-PRI ISDN unit. This combination of high-quality
codec and high-speed network support provides
video quality comparable to standard TV
broadcasts.
The recommended camera for this system is the 
BRC-300, a 16:9/4:3 switchable 3CCD camera that
provides exceptional quality video.  Other optional
cameras supported are the PCSA-CTG70 tracking
camera and the PCSA-CG70 camera unit.
*2
The PCS-G70SP supports a maximum of 50 fields per
second in interlaced SIF format.
3
ISDN
ISDN
ISDN
IP
IP
IP
IP
IP
IP
PCS-G50
PCS-1
PCS-G70S
PCS-TL50
PCS-TL50
PCS-G50
PCS-1
PCS-G70S
PCS-TL50
PCS-TL30
(optional)
(optional)
Fig 1 Multi-Point Videoconferencing at up to 10 Sites
Multi-Point Videoconferencing at up
to 10 Sites  
Fig 1
Using optional MCU software, the PCS-G70S can
be configured to communicate with up to 5 remote
videoconferencing sites (6 sites total) simultaneously
using either an IP (H.323 protocol) or ISDN (H.320
protocol) connection. It can also support
videoconferences in which the connections are a
combination of IP and ISDN using a bridging
function. And because the PCS-G70S has a
"speedmatching" function, it maximizes performance
by not reducing the higher speed connection to
match the lower speed connection, as is done with
some videoconferencing systems. Moreover, two
PCS-G70S units - each installed with the optional
MCU (H.323) software - can be cascaded with an IP
connection to support a maximum of 10
simultaneous sites. What is unique about the 
PCS-G70S is that it provides high quality, H.264
CIF video and clear MPEG-4 AAC audio, even in a
multi-point videoconference. And of course, the
PCS-G70S allows users to expand from a peer-to-
peer videoconference to a multi-point
videoconference by simply dialing up new
connections.
*1
*1
When adding a new endpoint on the same network (IP or
ISDN), the system will default to the lowest resolution
video standard of all endpoints