Sony PCS-TL50 Operating Instructions Manual page 149

When other videoconferencing system such as the PCS-1600 is used
Resolution Video
frame
rate
a f
Using Audio/Video Signal from the Connected Equipment for a Conference
Remarks
Sends and receives the pictures in 4CIF, and the original high-resolution
picture cannot be obtained and detailed portion cannot be clearly seen.
The number of frames displayed per second depends on the interface
transmission rates. For example, one frame per several seconds is
obtained.
a f
: High, : Middle, : Low
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